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定从练习

辨别定从

1.The place which interested me most was the Children's Palace.

2. What interested me most was the Children's Palace.

3.Do you know the man whom I spoke to ?

4.Do you know whom I spoke to ?

5.This is the hotel where they stayed last month.

6. This is where they stayed last month.

7.Great changes have taken place since then in the factory where we are working.

8.Great changes have taken place since then where we are working.

9.Do you know the year when the Chinese Communist Party was founded?

10.Do you know when the Chinese Communist Party was founded?

11.I was 16 years old when the Chinese Communist Party was founded.

12.we can go where we want to go if we have time and money.

13.we can go to the place where we want to go if we have time and money

14.Do you still remember the day when I first came to Beijing?

15. Do you still remember when I first came to Beijing?

16.A paper plant is where paper is made.

17. A paper plant is the place where paper is made.

18. he is not satisfied with what he has.

19. ---- How do you like the cake?

---- It’s quite different from the one I had last month.

20..--- How do you like the cake?

---- It’s quite different from what I had last month.

21.The news that our team won the watch excited us.

22. The news that he told us excited us.

23. The fact that he has disability makes him discouraged.

24. The fact that he put forward at the meeting was worth considering.

确定关系词

1.The student who/that answered the question is Zhang Hua.

2.Here is the pen that/which you lost the day before yesterday.

3.The woman that/who/whom you saw is our geography teacher.

4.The boy whose father is a teacher is good at English.

5. I remember the days when I lived in my home town.

6. A bookstore is a place where you can get books.

7. This is the reason why he didn't come to the meeting.

一.用关系词填空.

I、用that 、which 、who、 whom 、whose、when、 where、why填空

1.This is the museum _______ my mother worked 10 years ago.

_______ was built in 1950.

2.July 1, 1921 was the day ______ our Party was founded.

______ we will not forget.

3.I remember the days ________ I lived in my home town.

________ I spent with my grandpa.

4.The house _______ we're going to visit was built a century ago.

_______ used to be temple is a school now.

5.A bookstore is a place ______ you can get books.

______ books are sold.

______ sells books.

6.I can't find the card ______ I wrote your address.

______ ______ I wrote your address.

7.The box _____ he put his photos is gone.

_____ he is carrying is heavy.

8.The hotel ______ we stayed during our holiday stands by the seaside.

______ stands by the seaside is quite comfortable.

9.Is that the reason_______ you had a few days off?

10.We came to a place ____________ they had never paid a visit before.

11.He often helps the students __________ he thinks are not quick at their studies.

12.Is there a restaurant around ____________ I have something to eat?

13.The letter is from my sister, ______is working in Beijing.

14..I can never forget the day _____ we worked together and the day _____we spent together.

15.The way ______he looks at problems is wrong.

16.The way _____he explained to us was quite simple.

17.This is the reason ______he didn't come to the meeting.

18.The reason ______he didn't come was ______he was ill.

19.This is the magazine _______ I copied the paragraph.

20.This is the man ________ wants to see you.

21.That is not the way ______I do it.

22.I shall never forget those years _______ I lived on the farm with

the farmers, _______ has a great effect on my life. .

23.The runner ________________ you are asking about is over there.

24.The person ______________ you should write to is Mr. Ball.

25.The man ___________was passing by saw what happened.

26.These books _____________ you lent me were very useful.

27.I will never forget the people and the places _____I have ever visited.

28.Is there anyone ____________ family is in Beijing?

29.Show me the boy ______________ mother is a well-known singer.

30.The boy______ father is a teacher is good at English.

31.I know the person ______company produces new machines

32.She is the engineer _____ work is considered to be the best here.

33.Is this factory the one __________a lot of students visited yesterday?

34.The first thing ___________ we should do is to clean the room.

35.Y ou should do all ___________ I told you to do.

36.The book has nothing ________ interests me.

37.The naughty boy can do something _________ will give you trouble.

38.This is the tallest building ___________ I have ever seen.

39.Y ou can take anything ___________ you like.

40.This is the best film ________ has been shown this year.

41.He took away everything __________ belonged to him.

42.There is no person ________ is always on the right.

43.This is the very person __________ I need.

44.I have read all the books ________ you gave me.

45.He is the only person ___________ is right.

46.I don't have any friends _________ can lend me some money.

47.I have read every book __________ I can find.

48.They talked much _________ had nothing to do with the matter.

49.There is little ________ I can give you.

50.I will never forget the day ____________ I spent with you.

51.I will never forget the day _____________ I joined the army.

52.This is the factory ____________ my father worked 30 years ago.

53.This is the factory _____________ I visited.

54.I will never forget the days ______ we spent together in the country.

55.who is the boy______ is waiting at the door?

56.which is the book_____that you borrowed from John?

57.I don’t know the reaso n ___________ he was late for the class.

58.A birthday is the date _____ one was born.

59.Do you know the reason _____ no one questioned Aristotle's

theory for about 2,000 years?

60.it’s the first time _______ I have been here.

1.II. Fill in the blanks with “prep + whom/which” .

2.The teacher _____ _______ I learnt most was Mrs. Zhu.

3.What’s the name of the sport _____ ______ you go in a boat?

4.Mathematics is the subject ______ _______ I am most interested.

5.This is the question ______ ________ we have had a discussion.

6.This is the house __________ _________ I was born.

7.Is that the girl ________ _______ you lent your bicycle?

8.This is the pen ________ _______ I wrote the letter.

9.Here is the address _______ _______ you should write

10.These are the things _______ _____ I spoke just now.

11.Is that the fish _______ _____you asked the waiter?

12.The moon is a ball ______ _______ there are no living things.

13.Water is very important to fish, _______ _____ it can't live.

14.We love the village _______ _______ we work for two years.

15.Peter, ______ ______ I played tennis on Sundays, was stronger than I. .I have two

grammars, both of ______are of great use.

注意：

1.介词提前无省略无THAT

2.The boy who I am looking after is my brother’s son.中介词可提前吗？

3.有时为表示清楚，还可以在关系副词前where/when前加介词from/to

China is the birth place of kites, from where kiting flying spread to Japan, Korea, Thailand and India.

III. Non-restrictive attribute clause

1.Tom won the first prize, ____________ everybody knows.

2.Y esterday I met Ling Ping, _______ seemed to be very busy.

3.Our teacher, _______ wife is a nurse, is very strict with us.

4.She sang a new song, ________ we liked very much.

5.He lost my bike, _________ made me unhappy.

6.The weather turned out to be very good, which was more than we could expect.

7.As is known to everybody, the moon travels round the earth once every month.

8.She wore a heavy fur coat in such a hot day, ___________ I found quite strange.

9.His sister has become a teacher, ________ was what she wanted to be.

非限制定语丛语从句无THA T，无替换，无省略。

As多用于这些习惯用语中：as anybody can see/as is well-known/as is known to all/as we had expected/as often happens/as has been said before/as is mentioned above.

定语从句的句型转换

1..I have two uncles, both of whom are engineers.

I have two uncles, _____ ____ ____ ____ are engineers. 并列句

2.There are two rooms upstairs, neither of which has been cleaned.

There are two rooms upstairs, _____ _____ _____ _____ has been cleaned. 并列句

3.He made a mark where there was a mistake .（状从）

He made a mark_____ _____ ______ where there was a mistake .（定从）

4.It’s well-known that the Jewish were once terribly treated by the Naxi in the Second World

War.

______ is well-known , the Jewish were terribly treated by the Naxi in the Second World War .

The Jewish were terribly treated by the Naxi in the Second World War _____ it’s well-known .

5.This is the house where Lu Xun once lived .

6.This is the house _____ _____ Lu Xun once lived .

7.The box which he is carrying is heavy.

The box ______ ________ by him is heavy.

8.The hotel which stands by the seaside is quite comfortable.

9.The hotel _______ by the seaside is quite comfortable.

10.The building whose roof we can see from here is a hotel.

The building ____ ____ ____ ____ we can see from here is a hotel.

11.Fetch me the dictionary which (that) is lying on the desk.

Fetch me the dictionary ______ on the desk.

12.This is the place where we spent our childhood.

This is ______ we spent our childhood.

Join each pair of the sentences after the model.

Model: The boy is my brother. He helped me.

The boy that (who) helped me is my brother.

1.The man is in the next room. He brought us the letter yesterday.

3.The film is interesting. They saw it last night.

5.The pen is mine. He has taken it away.

7.The students will not pass the exam. They don’t work hard.

9.The lady is our teacher. Y ou saw her just now.

三、完成句子

1. All those_____________________________ (想去长城的) will get

together at the bus—Stop at six tomorrow morning．

2. The building_________________________(座落于我们学校附近的) is a hospital.

3. Tom is rea11y the bravest boy_______________________________ (我所认识的)。

4. The professor _____________________(母语是德语的) lives on the third

floor.

5. Have you received the letter____________________________ (我上星期六写的)?

6. All the people____________ (来深圳访问的人)want to visit The World

Window.

7. Can you help me find the person __________________________（救我女儿命的）

8. This is the one hundredth letter_________________________ (我上个月收到的)。

9. Tennis____________ (夏季最好的运动之一) can be played by two or four players．

10. I shall use the machine in such a way______________________ (他使用过的)．

二、单项选择

1.Your teacher of Chinese is a young lady____ comes from Beijing.

A. who

B. which

C. whom

D. whose

2. What’s the name of the program________.

A. which are listening

B. you are listening to

C. to that you are listening

D. that you are listening

3. The students were all interested ____ you told them yesterday.

A. in which

B. in that this

C. all that

D. in everything

4. He was the only person in his office______ was invited.

A. whom

B. whose

C. that

D. which

5. This is the museum______ we visited last year.

A. where

B. in which

C. which

D. in that

6. Charlie told his mother all____ had happened.

A. that

B. what

C. which

D. who

7. Do you know the student_____?

A. whom I often talk

B. with who I often talk

C. I often talk with

D. that I often talk

8. I like the house_____ windows face south.

A. whose

B. who’s

C. it's

D. its

9. Would you tell me where to get the dictionary _____?

A. what I need

B.I need

C. which I need it

D. that I need it

10.The young woman_____ I spoke just now is a young doctor.

A. who

B. to whom

C. whom

D. that

11.The pencil____ he was writing was broken.

A. which

B. that

C. with that

D. with which

12.I should like to use the same TV set____ is used in your classroom.

A. which

B. who

C. as

D. whose

13.I will never forget the day____ we studied together.

A. at which

B. on that

C. at that

D. on which

14.Galileo built a telescope_____ he could study the skies.

A. with which

B. through which

C. through that

D. which

15.This shirt is like the one___ we saw yesterday in that shop ___ John

told

us about.

A. that, which

B. which, where

C. whom; that

D. which, in which

16.He is doing such work ____I am.

A. as

B. which

C. who

D. what

17.The exhibition in ___the pictures are on show is on the second floor.

A. which

B. that

C. where

D. it

18.This is the place____ he stayed last year.

A. which

B. in where

C. in which

D. in that

19.That is the writer ____ a lot of books were written.

A. by Whom

B. who

C. whose

D. whom

20.It is one of the best books_____.

A. that have ever been written

B. that has ever been written

C. Which have been written

D. which has been written

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The computer can keep a record of the date ______ the passengers will travel.

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e computer can keep a record o

f the date ______ the passengers will travel.

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n’t know the reason ______ she cried.

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know the reason ______ she cried.

now the reason ______ she cried.

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eason ______ she cried.

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______ she cried.

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f September _____ it will be neither hot nor cold.

定语从句专项练习题与答案详解

定语从句专项练习题与答案详解 1. Nearly all the streets are in straight lines, ________ from east to west. Those ________ run from north to south are called avenues. A. running; that B. run; who C. running; who D. run; that 2. This is the case ________ he’s had all his money stolen. A. when B. where C. that D. on which 3. Mr. Smith will pay a visit to Beijing this autumn, ________ we will enjoy the Olympic Games in 2008. A. where B. when C. which D. how 4. The artist will not paint people or animals but he will paint anything ________ . A. that the little girl asks him B. the little girl asks him to C. for the little girl to ask him D. what the little girl asks him 5. —How did you get in touch with the travel agent, Robin? —Oh, that’s easy. I surfed the Internet and then called one ________ the telephone number is provided. A. which B. in which C. of which D. whose 6. October 15 th is my birthday, ________ I will never forget. A. when B. that C. what D. which 7. The treatment will continue until the patient reaches the point ________ he can walk correctly and safely. A. when B. where C. which D. whose 8. There are several research centers in China ________ a certain disease called Bird Flu is being studied. A. which B. where C. when D. what 9. I hope that the little ________ I have been able to do does good to them all. A. which B. what C. that D. when 10. The time is not far away ________ modern communications will become widespread in China’s vast countryside. A. as B. when C. until D. before 11. ________ is known to everybody, Taiwan is a part of China. We must unify it. A. It B. As C. Which D. What 12. I shall never forget the day ________ Shen Zhou V was launched, ________ has a great effect on my life. A. when, which B. that, which C. which, that D. when, that 13. The bread my wife makes is much better than ________ you can buy at a store. A. that which B. one that C. that of which D. this of which 14. There is no such place ________ you dream of in all this world. A. that B. what C. which D. as 15. The people, ________ had been damaged by the flood, were given help by the Red Cross. A. all whose homes B. all of whose homes C. all their homes D. all of their homes 16. The humans are destroying nature day by day, ________ of course, will cause severe punishment from it sooner or later. A. who B. when C. on which D. which 17. Is this research center ________ you visited the modern equipment last year? A. where B. that C. the one that D. the one where

思考题(拓展题)二年级

第一到三单元 1、数一数，下图中共有（）条线段 2、根据给出的算式，请推算出每个图形代表一个什么数字。 3、猜一猜，每个汉字各表示什么数字？学=（）生=( ) 4、王奶奶家养了45只鸭子、70只鸡，养的鹅的只数和鸭同样多，鸡、鸭、鹅共多少只？ 5、田田练了8天的字，前7天，每天练4张纸，最后一天练了 5张纸。田田8天一共练写了多少张纸？ 6、被减数比差大19，你知道减数是多少吗？ 7、一张长方形的纸，减去一个角，还剩几个角？（把剪法画出来）

( ) ( ) ( ) 第四到六单元 1、画图表示下面算式的含义。 3×3 6×2 （让学生能用图形来表示乘法算式的意义） 2、爬楼和锯木头的问题以及求间隔距离的问题。 (1)、小红家住在5楼。她从1楼到2楼要用1分钟。照这样计算，他从1楼走到5楼要用多少分钟？（2）、两面旗子之间相隔2米，从左往右数，第一面彩旗与第七面彩旗之间相距多少米？（3）、把一根木头锯成5段，每锯下一段要用3分钟，一共用多少分钟？（4）、把一段绳子剪成6段，需要剪几次？（5）、小明把4条绳子接起来，一共要打几个接？ 3、同学们布置会场，需要4套课桌椅。两个同学抬一张桌子，一个同学拿两把椅子，应安排多少名同学？

4、小军把18朵花和小狗、小猫整齐地摆成一行。小狗的前边有4朵花，小猫的后边有7朵花，小狗在小猫的前面。小狗和小猫的中间有多少朵花？ 5、一根木棍锯一次变成两段,如果小明一共锯了6次,那么现在一共有几段? 6、一根铁丝用去一半后，再用去剩下的一半，这时剩下9米，原来这根铁丝多长？ 7、用3张十元和2张二十元一共可以组成多少种币值？ 8、用0、1、2、3能组成多少个不同的三位数？第七单元认识时间 1、按照规律画出最后一幅图的时间。 2、根据时刻画出时针和分针。

应用文写作与训练教学大纲

应用文写作与训练教学大纲一、概述１、重点掌握公文的概念和特点。公文有公文的概念有广、狭义之分。广义的公文是指党政机关、企事业单位及社会团体在公务活动中所用的文字材料。广义的公文专指法定公文。是指《国家行政机关公文处理办法》列出的十三类公文。这是行政机关在行政管理活动中所形成的具有法定效力和规范体式的文书，是依法行政和进行公务活动的重要工具。公文的特点主要有：（1）法定性；（2）政策性；、（3）实用性；（4）实效性；（5）规范性。２、掌握公文的基本功用。公文的基本功用有：（1）颁布法规，传达指示；（2）反映情况，请示工作；（3）联系工作，商洽公务；！（4）宣传教育；（5）依据凭证。３、掌握公文的分类。（1）依照行文关系和行文方向的不同，可将公文分为上行文、下行文、平行文三种。（2）按照紧急程度可将公文分为紧急公文和普通公文两大类。紧急公文又分为“特急”和“急件”两种。（3）按照有无保密要求和、及秘密等级可将公文分为无保密要求的普通文件和有保密要求的保密文件两大类。保密文件又分为绝密文件、机密文件和秘密文件三类。（4）按照具体职能的不同，可将公文分为法规性公文、指挥性公文、报请性公文、执照性公文、联系性公文、实录性公文六大类。二、公文的体式 ^ 1、了解公文的构成要素。中华人民共和国国家标准（GB/T9704-1999）《国家行政机关公文格式》将构成公文的诸要素划分为眉首、主体、版记三个部分。（1）眉首部分又称文头部分，通常有公文份数序号、秘密等级和保密期限、紧急程度、发文机关标识、发文字号、签发人诸要素构成。（2）主体部分又称行文部分，通常是由公文标题、主送机关、公文正文、附件说明、成文日期、公文生效标识、附注等项目构成。（3）版记部分又称文尾部分，通常是由主题词、抄送机关名称、印发机关和印发时间等项目构成的。

定语从句专项练习题及答案详解

定语从句专项练习题及详解50题 place _______interested me most was the Children's Palace. A. Which B. where C. what D. in which you know the man _______? A. whom I spoke B. to who spoke C. I spoke to D. that I spoke is the hotel _______last month. A. which they stayed B. at that they stayed C. where they stayed at D. where they stayed you know the year ______the Chinese Communist Party was founded? A. which B. that C. when D. on which is the day ______I'll never forget. A. which B. on which C. in which D. when factory ______we'll visit next week is not far from here. A. where B. to which C. which D. in which changes have taken place since then in the factory _______we are working. A. where B. that C. which D. there is one of the best films _______. A. that have been shown this year B. that have shown C. that has been shown this year D. that you talked you lend me the book ______the other day? A. about which you talked B. which you talked C. about that you talked D. that you talked pen ______he is writing is mine. A. with which B. in which C. on which D. by which arrived at a farmhouse, in front of ______sat a small boy. A. whom B. who C. which D. that engineer ______my father works is about 50 years old. A. to whom B. on whom C. with which D. with whom there anyone in your class ______family is in the country? A. who B. who's C. which D. whose 'm interested in ______you have said. A. all that B. all what C. that D. which want to use the same dictionary ______was used yesterday. A. which B. who C. what D. as isn't such a man ______he used to be. A. who B. whom C. that D. as is good at English, ______we all know. A. that B. as C. whom D. what Ming, ______to the concert enjoyed it very much. A. I went with B. with whom I went C. with who I went went with him don't like ______ as you read. A. the novels B. the such novels C. such novels D. same novels talked a lot about things and persons ________they remembered in the school. A. which B. that C. whom D. what letter is from my sister, ______is working in Beijing.

初中介词讲解及练习题

介词教师用介词是一种虚词，它不能单独担任句子成分，必须与名词或代词或相当于名词的其他词类、短语或从句构成介词短语，才能担任句子成分。 1、介词的种类介词由词形上可分为简单介词和短语介词。简单介词知识一个单词，如：in，on，after等。短语介词是由两个以上单词集合而成，如：out of，in front of，because of，instead of等。 1、表示时间的介词表示“时间”的介词如下： ①表示年、月、日、时刻等用at，in，on ②表示时间的前后用before，after ③表示期限等用by，until，till ④表示期间等用for，during，through ⑤表示时间的起点等用from，since ⑥表示时间的经过等用in，within （1）at，on，in A.at：用于表示时刻、时间的某一点 at lunch在午饭时at breakfast早餐时at noon正午时at that time那时 at night在夜间at the moment此刻，目前at present目前at nine（o’clock）在九点钟at first开始的时候，起初at/on the weekend在周末at last最后at the same time同时at times偶尔，有时at the end of 1999在1999年末at this time of（the）year在一年中的这个时候 We usually have lunch at noon/ at twelve.我们通常中午吃午饭（十二点吃午饭）注意：表示时间的名词前有this，last，next，every等修饰时，其前面不加介词。this morning今天早上；last Monday 上周一；every week每周 B.on用于表示某天，某一天的上、下午（指具体的某一时，一律用on） on Monday在周一 on Tuesday morning在周二早上 on June 6在6月6日 on May 4,1996在1996年5月4日 on a cold night在一个寒冷的夜晚 on that day在那天 on Christmas Day在圣诞节那天 on time准时 on Monday evening在周一晚上 on the night of July（the）first在七月一日的夜晚 we didn’t listen to the lecture on Wednesday afternoon.周三下午我们没去听演讲。 C.in用于表示周、月、季节、年和泛指的上午、下午、晚上（指在一段时间内）。 in the week在这周in the holiday在假期中in May 在五月in summer在夏季 in Spring在春季in autumn 在秋季in 1995在1995 in winter在冬季 in September，1995在1995年9月 in the morning在上午 in the afternoon在下午 in the evening在晚上 in the 21st century在二十一世纪 in time及时in an hour一个小时后in a minute一会儿，立刻 Jack was about to lock the door when just in time he remembered his key. 杰克正要锁门，忽然（正在那时他及时）想起了他要拿门钥匙。

第2章思考题及习题2参考答案

第2章思考题及习题2参考答案一、填空 1. 在AT89S52单片机中，如果采用6MHz晶振，一个机器周期为。答：2μs 2. AT89S52单片机的机器周期等于个时钟振荡周期。答：12 3. 内部RAM中，位地址为40H、88H的位，该位所在字节的字节地址分别为和。答：28H，88H 4. 片内字节地址为2AH单元最低位的位地址是；片内字节地址为A8H单元的最低位的位地址为。答：50H，A8H 5. 若A中的内容为63H，那么，P标志位的值为。答：0 6. AT89S52单片机复位后，R4所对应的存储单元的地址为，因上电时PSW= 。这时当前的工作寄存器区是组工作寄存器区。答：04H，00H，0。 7. 内部RAM中，可作为工作寄存器区的单元地址为 H～ H。答：00H，1FH 8. 通过堆栈操作实现子程序调用时，首先要把的内容入栈，以进行断点保护。调用子程序返回指令时，再进行出栈保护，把保护的断点送回到，先弹出的是原来中的内容。答：PC, PC，PCH 9. AT89S52单片机程序存储器的寻址范围是由程序计数器PC的位数所决定的，因为AT89S52单片机的PC是16位的，因此其寻址的范围为 KB。答：64 10. AT89S52单片机复位时，P0~P3口的各引脚为电平。答：高 11. AT89S52单片机使用片外振荡器作为时钟信号时，引脚XTAL1接，引脚XTAL2的接法是。答：片外振荡器的输出信号，悬空 12. AT89S52单片机复位时，堆栈指针SP中的内容为，程序指针PC中的内容为。答：07H，0000H 二、单选 1. 程序在运行中，当前PC的值是。 A．当前正在执行指令的前一条指令的地址 B．当前正在执行指令的地址。 C．当前正在执行指令的下一条指令的首地址 D．控制器中指令寄存器的地址。答：C 2. 判断下列哪一种说法是正确的？

定从练习

定语从句练习题编者：刘永涉 1、The knife we used to cut the bread is very sharp. A．which B．with C．with it D．with which 2、The brave man, the tiger was shot, is a good hunter. A．of whom B．by that C．by whom D．by which 3、The clever boy made a hole in the wall, he could see what it was going on inside the house. A．on which B．at which C．through which D．in which 4、The beautiful dress Miss Jones went to the ball was borrowed from a friend of hers. A．in which B．worn by C．through which D．on which 5、During the days , he worked as a servant at the Browns’. A．that followed B．to follow C．following D．followed 6、You may take anything useful . A．which you want B．you want them C．what you want D．you want 7、My hometown is no longer the same it used to be. A．like B．that C．as D．which 8、The old woman has two sons, one is a teacher. A．of who B．of whom C．of which D．of them 9、You can take any seat is free. A．in which B．that C．where D．which 10、Is there anything to you? A．that belong B．which belongs C．that belongs D．that is belonged 11、We hope to get such a tool he is using. A．where B．that C．as D．which 12、Finally came the day he had to begin his study for the next term.

面试思考题(二)

面试思考题(二) 1、从前，一个瞎子到朋友家做客。告别时，天色已晚，朋友给他一盏灯笼。瞎子脸色变了：“你明知我看不见，还送我灯笼，这不是捉弄我吗？”朋友说：“你误会了。灯笼对你没有用处，可是它能为别人照明。”这件事给你什么启示?、 2、忍受痛苦煎熬的蚌体内正孕育着一颗异常美丽的珍珠。如何理解？ “天空的幸福，是穿一身蓝；森林的幸福，是披一身绿；太阳的幸福，如钻石般的耀眼；而黄昏的霞辉，就是落日的幸福，它有无比的庄严和气势。”请问你的幸福是什么？ 3、“渔民有个经验：将捉来的一只螃蟹放进竹需盖盖儿，放进两只以上就不用盖了。因为只要有一只蟹爬上篓口，其他螃蟹就会缠住它，结果都爬不出。对此现象，请结合实际谈谈你的感想。”如何理解？ 4、编故事，比如：说出一人名、地名、花名、车名，编一个与福彩有关的故事；说出三个成语，编一个与“五一”红色旅游相关的故事。 5、一天，一只茧上裂开了一个小口，有一个人正好看见了，他一直在观察着，蝴蝶艰难地将身体从那个小口中一点点地往外挣扎，几个小时过去了，蝴蝶似乎没有什么进展了，看样子它好象已经竭尽全力，不能再前进一步了……这个人实在看得心疼，决定帮助一下蝴蝶：他拿来一把剪刀，小心翼翼地将茧破开，蝴蝶很容易地挣脱出来，但是它的身体很萎缩、很小，翅膀紧紧地贴着身体…… 这个好心人并不知道，原来蝴蝶从茧上的小口挣扎而出，要通过这一挤压过程将体液从身体一直挤压到翅膀，这样它才能在脱茧而出后展翅飞翔。读了这则故事,你想到了什么? 6、播下一种思想，收获一种行为；播下一种行为，收获一种习惯；播下一种习惯，收获一种性格；播下一种性格，收获一种命运。你如何理解？ 8、自然界有这样一种现象。当一株植物单独生长时，显得矮小单调，而与众多同类植物一起生长时，则根深叶茂，生机盎然。相互影响、相互促进的“共生效应”，你如何理解？这何尝不是人类社会进步的机理？崇德向善，培育和践行核心价值观，仅有个体的自觉，也许能出现一两处盆景，但肯定形成不了宜人的风景。 9、“蓬生麻中，不扶而直；白沙在涅，与之俱黑”。你如何理解？人能改造环境，环境也在塑造人。好的土壤可以让嘉德懿行生根发芽，而坏风气却是道德力量的腐蚀剂。 10、“苔花如米小，也学牡丹开”。你如何理解？心动和感动只是起点，行动才是一切。当我们诚心去奉献，真情就会如约而至；当我们用心去改变，爱心就会春暖花开。 11、卞之琳有首脍炙人口的诗《断章》：“你在桥上看风景，看风景的人在楼上看你”，你如何理解？与其感叹这里的民风淳朴，羡慕那里的和谐友善，不如埋头从现在做起，培育脚下的这片土壤。一起站出来，我们就是一道让人心明眼亮的风景。

定语从句练习题 well done

定语从句练习题 1.The place _______interested me most was the Children's Palace. A. Which B. where C. what D. in which 3.This is the hotel _______last month. A. which they stayed B. at that they stayed C. where they stayed at D. where they stayed 4.Do you know the year ______the Chinese Communist Party was founded? A. which B. that C. when D. on which 5.That is the day ______I'll never forget. A. which B. on which C. in which D. when 6.The factory ______we'll visit next week is not far from here. A. where B. to which C. which D. in which 8.This is one of the best films _______. A. that have been shown this year B. that have shown C. that has been shown this year D. that you talked 9.Can you lend me the book ______the other day? A. about which you talked B. which you talked C. about that you talked D. that you talked 10.The pen ______he is writing is mine. A. with which B. in which C. on which D. by which 11.They arrived at a farmhouse, in front of ______sat a small boy. A. whom B. who C. which D. that 12.The engineer ______my father works is about 50 years old. A. to whom B. on whom C. with which D. with whom 13.It there anyone in your class ______family is in the country? A. who B. who's C. which D. whose 14.I'm interested in ______you have said. A. all that B. all what C. that D. which 15.I want to use the same dictionary ______was used yesterday. A. which B. who C. what D. as 16.He isn't such a man ______he used to be. A. who B. whom C. that D. as 17.He is good at English, ______we all know. A. that B. as C. whom D. what 18.Li Ming, ______to the concert enjoyed it very much. A. I went with B. with whom I went C. with who I went D.I went with him 19.I don't like ______ as you read. A. the novels B. the such novels C. such novels D. same novels 20.He talked a lot about things and persons ________they remembered in the school. A. which B. that C. whom D. what 21.The letter is from my sister, ______is working in Beijing. A. which B. that C. whom D. who 22.In our factory there are 2,000 workers, two thirds of ____are women. A. them B. which C. whom D. who 23.You're the only person ______I've ever met ______could do it. A. who;/ B./; whom C. whom;/ D./; who 24.I lost a book, ______I can't remember now. A. whose title B. its title C. the title of it D. the title of that https://www.wendangku.net/doc/9419021214.html,st summer we visited the West Lake, ______Hangzhou is famous in the world. A. for which B. for that C. in which D. what 26.I have bought such a watch _______ was advertised on TV. A. that B. which C. as D. it 27.I can never forget the day _______ we worked together and the day ______ we spent together.

句型转换讲解及训练

句型转换讲解及训练 ★一、肯定陈述句变否定陈述句步骤：一看情系助二变第一人称I，we变第二人称you my---your some-----any something---anything already----yet 并列连词and--or too----either eg: Judy can write stories. ________________________________________________ He reads Chinese pomes every morning. ________________________________________________ His friend has already mailed the photos. _________________________________________________ ★二、陈述句变一般疑问句步骤：一看情系助二变 eg：My mother has lunch in the factory. _____________________________________________________ She did very well in her English exam. _____________________________________________________ Mary often watches TV at home in the evening. _____________________________________________________ There is some milk in the bottle. _____________________________________________________ *陈述句变选择疑问句的方法：首先将句子变成一般疑问句，然后用or 连接被选择的部分。 eg：I like apples (用oranges改成选择疑问句) 第一步变成一般疑问句：Do you like apples？第二步用or 连接被选择的部分：Do you like apples or oranges ？★三、陈述句变反意疑问句步骤：一看情系助二遵八字原则（前肯后否，前否后肯） ★否定词：no,not,never,hardly,few,little,nothing等三找代词代主语 eg: She has never heard the English song. She has never heard the English song, ________ ___________? She is a Japanese girl. She is a Japanese girl, __________ ____________? They don’t like the film. They don’t like the film, _________ ____________? There is a radio on the table. There is a radio on the table, _________ ___________? ★四、陈述句变感叹句感叹句的句型结构如下： What + 方法：一断二加三换位四去除 eg: The mooncakes are delicious. ________ __________ the mooncakes are ! It’s a lovely day. （改为感叹句） __________ lovely day it is! She is such a beautiful girl. ________ _____ __________ __________ she is! ★五、就划线部分提问实质：其实是变成一个特殊疑问句（即特殊疑问词+ 一般疑问句）步骤：一定（确定特殊疑问词）二疑（变成一般疑问句跟在特殊疑问词后）三变化（some-----any something---anything already----yet）四删除（原句中的划线部分不写）如何确定特殊疑问词？就人提问用who（主语）或whom（宾语）就谓语或动词短语提问用what 就地点提问用where 就时间提问用when或what time （具体时间几点）就方式提问用how 就某人的身高提问用how tall 就for+ 一段时间、长度提问用how long（多长时间或物体多长）就in+ 一段时间提问用how soon 就复数名词的数目、数量提问用how many+复数名词，就不可数名词的数目、数量或价格提问用how much+不可数名词就距离提问用how far 就年龄提问用how old 就频率提问用how often 就次数提问用how many times 就原因提问用why 就名词所有格提问用whose 注意：就句子的主语进行提问不须倒装就句子中的谓语进行提问时把划线部分用do的适当形式代替 eg：My boss has been to Hong Kong twice a month. _______ ________ _______ your boss been to Hong Kong ? The little boy played football on the playground. ________ _________ the little boy _______ football? They went to Beijing by air. ________ _________ they ________ to Beijing? The visitors will come to our school in two month. ________ ________ _______ the visitors __________ to our school? My father has been a party member for ten years. ________ _________ __________ your father been a party member? They are talking about the future. ________ ________ they ________? She told me the news this week. ________ ________ she ________ you the news? He has three kids. _______ ________ kids ________ he ________? I want to be a speaker because I like talking to people. ________ ________ you ________ to be a speaker? She has half a bottle of milk for lunch. ________ _________ milk _______ she ________ for lunch? Lu Ping is the tallest girl on our team. _________ __________ the tallest girl on our team? He is playing basketball. ________ ________ he _________? His father does housework every day. ________ _______ his father _________ every day? ★六、陈述句变成祈使句方法：如果是肯定句，则变成如果是否定句，则变成 eg：You are nervous (改为祈使句否定形式) __________ ____________ nervous. We play basketball (变成由Let 开头的祈使句) _________ __________ basketball . You can’t talk in class.(改为祈使句) _______ _________ in class. You shouldn’t read it slowly. (改为祈使句) _________ _________ it slowly. ★七、肯定祈使句变否定祈使句方法：就是在肯定祈使句前加don't eg:Open the door. --------Don’t open the door. Don’t be late for school again. ★八、同义句转换(其实质是同义词组或同义固定句型的转换) Eg：Where does the family come from? Where ________ the family ________? Part One 肯定句→否定句 1. We do morning exercises every day. (改为否定句) We ________ _________ morning exercises every day. 2. There is something wrong with my bike. (改为否定句) There ______ _______ wrong with my bike. 3. Peter often has bread for his breakfast. (改为否定句) 有：直接在情系助后加not 没有：借don’t/doesn’t/didn’t 还有：直接将情系助提到主语前没有：借do/does/did 还有：直接用没有：借do/does/did a/an + adj + 可数名词单数+ 主语+谓语！ adj + 可数名词复数或不可数名词+ 主语+谓语！ V(原形) + 其它. Don’t + V(原形) + 其它. How + adj/adv +主语+谓语！

金属材料学思考题答案2.

金属材料学思考题答案2 绪论、第一章、第二章 1．钢中的碳化物按点阵结构分为哪两大类，各有什么特点？答：分为简单点阵结构和复杂点阵结构，前者熔点高、硬度高、稳定性好，后者硬度低、熔点低、稳定性差。 2．何为回火稳定性、回火脆性、热硬性？合金元素对回火转变有哪些影响？答：回火稳定性：淬火钢对回火过程中发生的各种软化倾向（如马氏体的分解、残余奥氏体的分解、碳化物的析出与铁素体的再结晶）的抵抗能力回火脆性：在200-350℃之间和450-650℃之间回火，冲击吸收能量不但没有升高反而显著下降的现象热硬性：钢在较高温度下，仍能保持较高硬度的性能合金元素对回火转变的影响：①Ni、Mn影响很小，②碳化物形成元素阻止马氏体分解，提高回火稳定性，产生二次硬化，抑制C和合金元素扩散。③Si比较特殊：小于300℃时强烈延缓马氏体分解， 3．合金元素对Fe-Fe3C相图S、E点有什么影响？这种影响意味着什么？答：凡是扩大奥氏体相区的元素均使S、E点向左下方移动，如Mn、Ni等；凡是封闭奥氏体相区的元素均使S、E点向左上方移动，如Cr、Si、Mo等？ E点左移：出现莱氏体组织的含碳量降低，这样钢中碳的质量分数不足2％时就可以出现共晶莱氏体。S点左移：钢中含碳量小于0.77％时，就会变为过共析钢而析出二次渗碳体。 4．根据合金元素在钢中的作用，从淬透性、回火稳定性、奥氏体晶粒长大倾向、韧性和回火脆性等方面比较下列钢号的性能:40Cr、40CrNi、40CrMn、40CrNiMo。 1）淬透性：40CrNiMo 〉40CrMn 〉 40CrNi 〉 40Cr 2）回火稳定性：40CrNiMo 〉40CrNi 〉 40CrMn 〉 40Cr 3）奥氏体晶粒长大倾向：40CrMn 〉 40Cr 〉 40CrNi 〉 40CrNiMo 4）韧性：40CrNiMo 〉40CrNi 〉40Cr〉40CrMn (Mn少量时细化组织) 5）回火脆性： 40CrMn 〉40CrNi> 40Cr 〉40CrNiMo 5.怎样理解“合金钢与碳钢的强度性能差异，主要不在于合金元素本身的强化作用，而在于合金元素对钢相变过程的影响。并且合金元素的良好作用，只有在进行适当的热处理条件下才能表现出来”？从强化机理和相变过程来分析（不是单一的合金元素作用）合金元素除了通过强化铁素体，从而提高退火态钢的强度外，还通过合金化降低共析点，相对提高珠光体的数量使其强度提高。其次合金元素还使过冷奥氏体稳定性提高，C曲线右移，在相同冷却条件下使铁素体和碳化物的分散度增加，从而提高强度。然而，尽管合金元素可以改善退火态钢的性能但效果远没有淬火回火后的性能改变大。除钴外，所有合金元素均提高钢的淬透性，可以使较大尺寸的零件淬火后沿整个截面得到均匀的马氏体组织。大多数合金元素都有阻止奥氏体晶粒长大的倾向（Mn除外），从而细化晶粒，使淬火后的马氏体组织均匀细小。

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