《1.2 函数及其表示》一课一练2

1.2 函数及其表示

一、选择题

1、设集合A ＝｛x ｜0≤x ≤6｝，B ＝｛y ｜0≤y ≤2｝，从A 到B 的对应法则f 不是映射的是（ ）

A 、f ：x →y ＝21x

B 、f ：x →y ＝31x

C 、f ：x →y ＝

4

1x

D 、f ：x →y ＝

6

1x

2、设M ＝｛x ｜－2≤x ≤2｝，N ＝｛y ｜0≤y ≤2｝，函数f （x ）的定义域为M ，值域为N ，则f （x ）的图象可以是（ ）

3、在映射中B A f →:，},|),{(R y x y x B A ∈==，且),(),(:y x y x y x f +-→，则与A 中的元素)2,1(-对应的B 中的元素为（ ）

A 、)1,3(-

B 、)3,1(

C 、)3,1(--

D 、)1,3(

4、下列各组函数)()(x g x f 与的图象相同的是（ ）

A 、2

)()(,)(x x g x x f ==

B 、2

2)1()(,)(+==x x g x x f

C 、0

)(,1)(x x g x f ==

D 、?

?

?-==x x

x g x x f )(|,|)( )0()0(<≥x x 5、若{}2

1,,

0,,b a a a b a ?

?=+???

?

，则20052005a

b +的值为( ) A 、0 B 、1 C 、1- D 、1或1-

6、如下图可作为函数)(x f =的图像的是( )

B

C

D

7、若:f A B →能构成映射，下列说法正确的有 （ ）

（1）A 中的任一元素在B 中必须有像且唯一；（2）B 中的多个元素可以在A 中有相同的原像；（3）B 中的元素可以在A 中无原像；（4）像的集合就是集合B 。

A 、1个

B 、2个

C 、3个

D 、4个 二、填空题

8、设函数f （x ）＝???≤，

＜，＋)2(2)2(22x x x x 则f （－4）＝____，又知f （0x ）＝8，则0x ＝____

9、如图，有一块边长为a 的正方形铁皮，将其四个角各截去一个边长为x 的小正方形，然后折成一个无盖的盒子，写出体积V 以x 为自变量的函数式是_____，这个函数的定义域为_______

10、给定映射f ：（x ，y ）→（x ，x ＋y ），在映射f 下象（2，3）的原象是（a ，b ），则函数f （x ）＝ax 2＋bx 的顶点坐标是________

11、设2

2 (1)

() (12)2 (2)x x f x x x x x +-??=-<

≤≥，若()3f x =，则x=____________。

12、已知2

2

1)1(x

x x

x f +

=-，则=+

)1(x

x f ___________。

三、解答题

13、设f(x)是R 上的函数，且满足f(0)=1，并且对任意实数x 、y ，有f(x-y)=f(x)-y(2x-y+1)，求f(x)的表达式。

14、已知二次函数f(x)当x=2时有最大值16，它的图像截x 轴所得的线段长为8，求解析式y=f(x)。

15、已知二次函数f (x )=ax 2+bx （a ，b 为常数，且a ≠0）满足条件： f (x －1)=f (3－x )且方程f (x )=2x 有等根. （1）求f (x )的解析式；

（2）是否存在实数m ,n （m

参考答案

一、选择题1、A ； 2、B ；3、A ；4、D ；5、C ；6、D ；7、C 二、填空题

8、 18 ， 4或－6； 9、 V ＝2)2(x a x －｛x ｜0＜x ＜a /2｝ 10、（

8

1，－

16

1） 11

12、412

2++

x

x

三、解答题

13、解：因为对于R y x ∈,有f(x-y)=f(x)-y(2x-y+1)，令x=0得f(-y)=f(0)-y(-y+1) 所以1)(2+-=-y y y f ，所以)(1)(2R y y y y f ∈++=。 所以)(1)(2R x x x x f ∈++=。

14、解：由题意设16)2()(2+-=x a x f ，即a ax ax x f 4164)(2++-=。 方程041642=++-a ax ax 的两根，21,x x 满足8||21=-x x ， 而a

x x x x x x 644)(||212

212

21-=-+=-，所以2

864=-

a

，所以a=-1

所以，124)(2++-=x x x f

15、解：(1)∵方程ax 2

+bx －2x=0有等根，∴△=(b －2)2

=0，得b=2。 由f(x －1)=f(3－x)知此函数图像的对称轴方程为x=－a

b 2=1，得a=－1，

故f(x)=－x 2+2x.

(2)∵f(x)=－(x －1)2+1≤1，∴4n≤1，即n≤

4

1.

而抛物线y=－x 2+2x 的对称轴为x=1，∴当n≤

4

1时，f(x)在[m,n]上为增函数。

若满足题设条件的m,n 存在，则?

??==n n f m m f 4)(4)(

即?????=+-=+-n

n n m

m m 42422

2

????-==-==2020n n m m 或或又m

∴m=－2,n=0，这时，定义域为[－2，0]，值域为[－8，0]. 由以上知满足条件的m,n 存在,m=－2,n=0.

新概念英语第一册1-40课综合测试(答案已修正)

新概念英语1-40课综合测试 单词填空（1分/题，共10分） 1. （手提包） 2. （伞） 3. （票） 4. （工程师） 5. （抓住） 6. （地毯） 7. （助手）8. （疲乏的） 9. （厨房） 10. （沿着） 写出划线字母的音标 1.woman 2.brother 3.please 4.school 5.upstairs 6.tourist 7.orange 8.thirsty 9.excuse 单词辨音 ( )1.A.kitchen B.right C.electric D.middle ( )2.A.room B.cooker C.bedroom D.book ( )3.A.clothes B.thin C.thirsty D.thank ( )4.A.city B.decide C.bicycle D.clean ( )5.A.headache B.chair C.teach D.change ( )6.A.under B.run C.sun D.building ( )7.A.blouse B.cloud C.young D.house ( )8.A.type B.cry C.family D.sky ( )9.A.music B.pupil C.student D.June ( )10.A.star B.party C.warm D.March

按要求填空 1.friend_____（复数） 2.officer_____（复数） 3.tomato_____（复数） 4.watch_____（复数） 5.child_____ （复数） 6.woman_____ （复数） 7.family_____（复数） 8.deer_____ （复数） https://www.wendangku.net/doc/0a10509479.html,zy______ （反义词） 10.fat （反义词） 11.tall （反义词）12.dirty （反义词）13.hot （反义词）14.old （反义词）用单词的适当形式填空 01.Excuse me!Is this_________ (you) pencil? 02.Mary is a new student.She is_________ (France). 03.He is my_________ (teacher) friend. 04.Cindy has a lot of_________ (orange). 05.Whose handbag_________ (be)it? 06.What nationality_________ (be)you? 07._____you_________ (can turn on)the radio? 08.Sorry,I_________ (not know)the lady behind the desk. 09.There_________ (be)some water in the glass. 10.There_________ (not)any magazines on the table. 用正确的介词填空（2分/题，共10分） 01.The women are going_________ the shop.(on/into) 02.Our house is _________ two village.(between/beside)

新概念英语第2册一课一练(含答案)

新概念英语第2册一课一练 Lesson 1 A private conversation 用所给单词或短语的正确形式填空。 1.How can you ________________ this awful noise? 2.I really ________________ that concert. 3.Would you like to ________________ tonight? 4.Local people ________________ very ________________ about the plans to close another hospital. 5.________________and let me look at your back. 6.How many times do I have to ask you to ________________? Complete the sentences by translating the Chinese into English. 根据汉语提示完成下列句子。 1. 每个圣诞节，孩子们都排练一场有意思的戏剧。 The children always perform ________________ every Christmas. 2. 为了弄个好座位，我早早地来到了剧院。 I got to the theatre early ________________. 3. 他记了些笔记供自己私人使用。 He made some notes for his ________________. 4. 我和谁出去不关你的事情。 It’s________________who I go out with. 5. 站在汤姆身后的女孩是谁？ Who’s the girl standing ________________? 从[A]、[B]、[C]、[D]四个选项中，选出可以填入空白处的最佳选项。1.—What do you think of the movie? —It’s fantastic. The o nly pity is that I______the beginning of it. (2009，浙江高考卷) [A] missed [B] had missed [C] miss [D] would miss 2. I love to go to the seaside in summer. It______good to lie in the sun or swim in the cool sea. [A] does [B]feels [C]gets [D]makes

新概念英语2一课一练.doc

Lesson 1 Ⅰ根据括号内所给的汉语提示写出相应的英语单词，并注意运用其正确形式。 1. 'I hate you!' she said to me （生气地）． 2. Last night I went to the （剧院）with a good friend. 3. I got a （座位）on the bus to my parents' house. 4. The play was very （有趣的）． 5. There are two men who are （坐）in the classroom. 6. He didn't pay any （注意）to the teacher. 7. The boy said very （粗鲁地）to that old man. 8. It isn't polite to read others, （私人的）letters. Ⅱ按正确的语序将下列单词连成句子。 1.I, a, letter, wrote, yesterday, to, brother, my 2.angrily, he, looked, the, man, woman, and, at, the 3.enjoyed, very, I, the, much, play 4.a, man, woman, young, and, were, loudly, young, a, talking 5.they, a, new, hospital, my, in, built, hometown, last, year Ⅲ单项选择（从所给选项A,B，c和D中选出最佳选项）。 1. The young man couldn't bad treatment（待遇）any longer. A. bear B.carry C.understand D.wait 2. Don't talk with me about that again. It's none of your . A. matter B. thing C. business D. affair 3. She turned to see who was sitting behind her. A. on B. off C. up D. around 4. Last week I to see a very interesting play in the theatre. A. will go B. am going C. went D. have gone 5. I talked to her excitedly, but she didn't pay any attention me. A. for B. to C. at D. in 6. I don't know why you speak so to your teacher. You should be polite. A. rudely B. rude C. private D. privately 7. When the teacher came in, John a story. A. is reading B. has read C. was reading D. had read 8. I came home late and my mother got very angry me. A. for B. with C. about D. to 9. How long here since you left your hometown? A. had you lived B. were you living C. will you live D. have you lived 10. The two of us finished our work on time . A. by the end B. to the end C. at the end D. in the end

新概念英语一课一练

新概念英语一课一练 Lesson 1 I. 根据所给汉语意思写出相应的英语单词或短语. 1.它________ 2. (女用)手提包____________ 3. 我(宾格)________ 4. 是的___________ 5.原谅_____________ 6. 问题___________ 7. 感谢你_____________ II. 根据所给的英语单词或短语写出相应的汉语意思. 1.pardon __________ 2. this ___________ 3. your ____________ 4.whose __________ 5. very much ____________ 6. then ______________ III. 完成下列对话. 1._______________ Yes? 2. __________ your bag? Pardon? Is this your bag? Yes, 3. _______________. Thank you very much. IV. 把下列句子翻译成英语. 1.对不起! ________________ 2. 这是你的手提包吗? ____________________________ 3.对不起, 请您再说一遍. ____________ 4. 是的,这是我的包. ________________________________ 5.非常感谢你!__________________________ Lesson 2 I. 根据所给汉语意思写出相应的英语单词或短语. 1.裙子_________ 2. 外套,上衣_________ 3. 小汽车_______ 4. 书________ 5. 钢笔_________ 6.手提包________ 7. 谁的_________ 8. 手表__________ 9. 房子________ 10. 衬衣___________ II. 根据所给首字母及汉语提示写出相应的英语单词. 1.Is this your w________ (手表)? 2. This isn't my p______ (钢笔). 3. This is my s________ (连衣裙). 4.Is this your s_________ (衬衣)? 5. This isn't my h________ (房子). III. 连词成句. 1.this , your , is, pen (一般疑问句) _________________________________ 2.is, this, not, dress, my ____________________________________________ 3. pardon, I, beg, your _____________________________________________ 4.very, thank, much, you __________________________________________ 5.this, my, pencil, yes, is __________________________________________ IV. 把下列句子翻译成英语. 1.这是你的上衣吗? __________________________________ 2.是的,这是我的小汽车. _________________________________ 3.这是你的裙子吗? ____________________________________ 4.不,这不是我的衬衣. _____________________________________ 5.这是我的书. __________________________________________ Lesson 3 I. 根据所给汉语意思写出相应的英语单词或短语. 1.伞___________ 2. 衣帽存放处____________ 3. 请___________ 4. 票___________ 5.这里__________ 6. 号码______________ 7. 外套_____________ II. 根据所给的英语单词或短语写出相应的汉语意思. 1.my ____________ 2. five _____________ 3. sorry ____________ 4.sir _______________ 5. word ____________ 6. your ____________ III. 连词成句. 1.Ticket, here, my, is ____________________ 2. This, umbrella, your, is (一般疑问句) ________________________ 3.Sir, am, I, sorry ________________________ 4. This, my, not, bag, is ______________________________________ 5.Please, my, and, book, pen, my __________________________________ IV. 把下列句子翻译成英语.

新概念英语 Lesson 43-44 一课一练

NCE Lesson 43—44 一、写出下列名词的复数形式。 glass -- watch -- cup -- knife -- loaf -- shelf -- family-- kettle -- fork -- box -- man -- dish -- 二、填入there is.../ there are.../ Is there... / Are there...填空 1.____________ a rabbit in the hat? Yes, ___________. __________ any water in the bottle? Yes, ____________. 2.____________ some cars in front of the restaurant. 3.____________ any flowers in the vase? Yes, __________. 4.____________some coffee in the bag. 三翻译词组 1、三个盒子________________ 2、在楼房前_________________ 3、在椅子后面_________________ 4、快点_______________________ 5、两个家庭主妇___________________ 6、五个玻璃杯_______________ 7、在水壶里面_________________ 8、四个书架___________________ 9、当然_______________ 10、在那边_______________ 四填入适当单词 1.Can you _________ the tea? (make/do) 2.Is there __________tea in the teapot? (some/any/a) 3.There it __________.(is/are) 4.I can't _________ the cups. Let's ___________ them. (look for/ find) 5.Look! The kettle is ___________. (boil) 6.There are some ________ in the cupboard. (dish) 7.There are some _________ in the library. (book) 五单项选择 ( )1. There is a blackboard ____ the classroom. A. in front of B. in the front of C. at front of D. at the front of

新概念英语第一册课后题及答案：Lesson63-64

新概念英语第一册课后题及答案：Lesson63-64 Written exercises书面练习 A Rewrite these sentences using Jimmy. 改写以下句子，用Jimmy作主语。 Example： I mustn't take any aspirins. Jimmy mustn't take any aspirins. 1 I am better now but I mustn't get up yet. 2 I have a cold and I must stay in bed. 3 I can get up for two hours each day. 4 I often read in bed. 5 I listen to the stereo, too. 6 I don't feel ill now. B Complete these sentences. 模仿例句完成以下句子。 Example： ______ eat rich food! Don't eat rich food! You mustn't eat rich food! 1 ______ take any aspirins!

2 ______ take this medicine! 3 ______ call the doctor! 4 ______ play with matches! 5 ______ talk in the library! 6 ______ make a noise! 7 ______ drive so quickly! 8 ______ lean out of the window! 9 ______ break that vase! 答案： Lesson 64 A 1 Jimmy is better now but he mustn't get up yet. 2 Jimmy has a cold and he must stay in bed. 3 Jimmy can get up for two hours each day. 4 Jimmy often reads in bed. 5 Jimmy listens to the stereo, too. 6 Jimmy doesn't feel ill now. B 1 Don't take any aspirins! You mustn't take any aspirins! 2 Don't take this medicine! You mustn't take this medicine!

新概念英语2 Lesson6一课一练

Lesson6一课一练 一、词汇 1.There is always a___________（乞丐）in front of my house. 2.I am going to__________(拜访)at my grand father’s house this weekend. 3.He took a pen out of his__________(衣服口袋)and began to write. 4.Would you like some__________(食物)or drink? 5.My__________(邻居)is a very old and nice woman. 6.Someone__________(敲门)at the door when we were having dinner. 7.He__________(返回)to his house last Monday. 二、用a\the\some填空 1.There is_________young man under the tall tree. 2.I bought_________tea in the shop yesterday afternoon. 3.The teacher said,“Look at__________picture on the blackboard.” 4.I met__________old friend of mine in the park last Friday. 5.John sent__________presents to his friends yesterday. 6.There is__________letter“t”in the word“white”. 三、单线选择 1.The clock__________six when I opened the door. A.knocks B.beats C.was knocking D.was beating 2.He bought_________new car_________day before yesterday. A.the;a B.a;the C./;the D.a;a 3.He telephoned me and__________an English dictionary. A.asked for B.put on C.took out D.gave up 4.I will call__________Mary_________her house to tell her my plan. A.at;on B.on;at C.at;at D.on;on 5.Tom helped me a lot with my work.___________,I gave him a present. A.In turn B.In fact C.In public D.In return 6.The boy is standing__________his head and singing songs. A.on B.by C.with D.over 7.Mr Smith said that he had been to Shenzhen___________. A.once a month B.after a month C.long ago D.long before 8.His mother was ill and he had to__________her at home. A.look for B.look up C.look after D.look at 9.Which of the following sentences is wrong? A.I find English difficult to learn. B.I find that English is difficult to learn. C.I find it difficult to learn English. D.I find that is difficult to learn English 10.We still have___________milk,but we don’t have___________coffee at all. A.any;any B.any;some C.some;some D.some;any

新概念英语第二册一课一练lesson 3 word版

Lesson 3 I 根据括号内所给的汉语提示写出相应的英语单词，并注意运用其正确形式。 1.Yesterday I (寄) a present to my sister who is in another city. 2.Timmy (借) a pen to me last week. 3.There is not a (一个的) word on the整个的paper. 4.I stayed at home the (博物馆) day. 5.They went to that (友好的) the day before yesterday. 6.The old man gave me a (决定) smile. 7.He made a big (公共的) on that day. 8.She often goes to that (损坏) park near her house. 9.The heavy rain (服务员) in a restaurant for many years. II 用括号中所给动词的正确形式填空。 1.I (send) a postcard to my friend Tom yesterday. 2.He (go) to the school library every day. 3.The old man (live) there since 1978. 4.The film (begin) before we got there. 5.I (not understand) what he said just mow. III 单项选择（从A,B,C和D中选出最佳选项）。 ( ) 1. You shouldn’t smoke and make such big noise public. A.in B. on C. at D. for ( ) 2. I am sorry that I can’t such a big decision at the moment. A.plan B. do C. make D. work ( ) 3. What you had done my plan completely. A.has spoilt B. had spoilt C. spoilt D. spoilts ( ) 4. My mother was very angry me and began to shout at me. A. at B. in C. for D. with ( ) 5. Would you please some money me? I want to buy a new bag. A. borrow; to B. lend; to C. borrow; from D. lend; from ( ) 6. Tom is very friendly others.

《新概念英语》二册一课一练1--34

Lesson 1 I .Rearrange the words in these sentences in the correct order. 1. games/played/yesterday/in their room/the children/quietly _________________________________________________________ 2. a new school/built/they/in our village/last year _________________________________________________________ 3. before lunch/the letter/in his office/quickly/he/read __________________________________________________________- II . Fill in the blanks. 1.This is p______ land; you can’t walk across it. 2.We had a long telephone c_______ yesterday. 3.Tom pays no a_______ to the teacher in class. 4.We can’t b______ so much homework. 5.Don’t speak to your classmates r______ III. Translation. 1.这不关你的事。 __________________________________________________________- 2.最后，我和爸爸一起欣赏了一场激动人心的车赛。 ___________________________________________________________ 3.因为汤姆无法忍受他的老板了，所以他刚才很生气地与他的老板谈话。 _____________________________________________________________ IV. Reading. Last Saturday evening I went to the cinema with a friend. We had very good seats. The film was very good , we think, but we did not enjoy it. Two tall people were

(完整版)新概念第二册一课一练Lesson23

Lesson 23 A new house 1. ________________ from them. 2.An artist went to a beautiful part of the country for a holiday, and ________________ a farmer. 3.I ________________ from my bank today telling me I owed them ￡60. 4.This artist finally ________________ his works at the cost of his health. 5. A sailor wearing earring now ________________ us. 根据汉语提示完成下列句子。 1. 不久以后，玛丽注意到了在乡下的人们也养有宠物狗。 Before long, Mary noticed that people ________________ also had dogs as pets. 2. 他把这个地区的所有闲置的建筑土地全部买下了，现在他可以随心所欲地要价了。 He bought up all the spare building land ________________ and can now charge what he wants for it. 3．我的建议现在对你来说可能比较奇怪，但是时间会证明一切的。 My advice may seem ________________ you now, but time will bear me out. 从[A]、[B]、[C]、[D]四个选项中，选出可以填入空白处的最佳选项。 1. Selecting a mobile phone for personal use is no easy task because technology ________ so rapidly. (2001，全国高考卷) [A] is changing [B] has changed [C] will have changed [D] will change 2.I ________ ping-pong quite well, but I haven’t time to play since the New Year. (2001，全国高考卷) [A] will play [B] have played [C] played [D] play 3. —What would you do if it _______ tomorrow? —We have to carry it on, since we’ve got everything ready. (2005，全国高考卷) [A] rain [B] rains [C] will rain [D] is raining 4. He asked me _______ I was fond of football. [A] that [B] whether [C] what [D] which 用括号内所给单词的适当形式完成句子。 1.He told me that he _______ (wait) for me for a long time. 2.If you _______ (come) to Beijing next month, please tell me. I’ll meet you at the station. 3.—What _______ he _______ (do) here in Beijing? —He _______ (attend) an international meeting. 4.The teacher said that the Changjiang River _______ (be) the longest river in China. 5.—Why isn’t John in class?

新概念英语1课课练部分答案

二、Yes？——Pardon——Yes，it is. 三、1手提包2雨伞3课桌4桌子5衬衫6原谅7手表8外套9连衣裙10裙子 四、1.Is this your umbrella? 2.Is that your watch? 3.Is this his shirt? 4.Are they your classmates? Lesson3-4 二.Here is my ticket.—Here is your umbrella and your coat.—Sorry,sir.—No,it isn’t.—Yes，it is. 三.1.小汽车2.房子3.套装4.学校5.教师6儿子7.女儿8.票9.号码10.公交车 四.1.This isn’t my watch. 2.That isn’t your suit. 3.This isn’t their school. Lesson5-6 二、Good morning.—This is Alice.—this is—How do you do? 三、DCBDDD 四、1.早上2.下午3.晚上4.学生5.瑞典的6.法国人7.德国人8.美国人9.英国人10.俄罗斯人 五、1.What’s your name?2.What make is it? 3.What colour is it? 4.What nationality is he? 5.What row are you in? Lesson7-8 二、What nationality are you?—I’m not.—What’s your job?—What’s your job? 三、ADCBCDC 四、1.I am a new student. 2.What nationality are you? 3..Mr. Blake is your teacher. 4.My coat and my umbrella,please. 5.Here is my ticket. 6.Alice is a new student. She is French. 7.What is your job? 五、1.Is she their daughter? 2.He isn’t our teacher. 3.Whose car is it? 4.is 5.Is he a policeman? he is. 6.his Lesson9-10 二、1.an 2.an 3.an 4.an the 5.The 6.a 三、1 its 2 thin 3 long\tall 4 dirty 5 hot 6 old 7 lazy 8 father 9 sister 10 his 四、1.I’m very well. 2.Nice to meet you,too. 3.Good morning. 4.She’s fine,thanks. Lesson11-12 二、1.His 2.your 3.you 4.my 5.Her 6.his 7.It 8.her 9.Steven’s 10.Hers 三、1.Whose car is it? 2.Is this your shirt? 3.He isn’t a policeman. 4.Whose boluse is that? Lesson13-14 二.1colour 2.可爱的3.连衣裙 4.到楼上5.green 6.看7.帽子8.领带9.衬衣10.地毯 11.dog 12 连衣裙 三．1.BDCEAF 2.CADBFEC 四、1-C 2-E 3-A 4-B 5-F 6-H 7-D 8-G

新概念第一册一课一练Lesson

L e s s o n19T i r e d a n d t h i r s t y 一、听力 Mother: _________’s the matter, children? Girl: We’re tired… Boy: …and _______,Mum. Mother: Sit down ________. Boy Girl 三. 1.__________the matter with you? A.What B.How C.What’s 2.The door isn’t shut.It is ___________. A .open B.tall C.heavy 3.Look________the fat man. A.in B.at C. into 4.I want __________ice cream. A.a B.an C.the

5.__________apples are very nice. A.That B.This C.These 6.---Are you ________now?—Yes,I am.Thank you A.all right B.right C./ 7. There are two birds in the tree. I can’t them . A. look B. look at C. watch D. find 8. There 5 apples , but I bananas.

4. Can you play ( the, a, / ) tennis with me ? 七、阅读短文。 根据短文内容，回答下列问题。 Mr. Brown lives near Mr. Smith’s house and they are good friends. Mr. Smith and some other people often call him. “Mr. Going To Do”. Do you know why? Mr. Brown always says he is going to do something, but he never does it. Every Saturday Mr. Brown goes to talk with Mr. Smith. “(1) I’m going to wash my car tomorrow.”Mr. Smith usually says, “Are you, Mr. Brown?” He knows his friend is not going to clean his car. Then he says, “Well, excuse me. I’m going to do some work in my home.” And so he does. Mr. and Mrs. Smith ” 1. Smith’s 3. 4. 2. two, class_____________________________________________________________________ 3. his, are, these, pictures_____________________________________________________________________ 4. color, dress, is, Kate’s, what_____________________________________________________________________ 5. that, is, who, old, woman_____________________________________________________________________ 九、作文。

新概念英语第二册课后练习答案lesson29

Lesson 29 练习答案Key to written exercises 1．关键句型练习答案 A What happened：flew(1.6)；landed(1.8)；landed(1.9)；wanted(1.10)；did not take(1.11) What has happened：has bought(1.1)；has begun(1.1)；has flown(11.7-8)；has just refused(11.9-10) 2．难点练习答案 1 bring 2 fetch 3 refused 4 deny 5 Very 3．多项选择题答案 1. b 根据课文第3-4行The most surprising thing about it, however, is that it can land anywhere…可以判断只有b.是正确的，it doesn’t need a runway to land on(它着陆时不需要跑道)是课文所暗示的这个飞机的令人惊奇之处。其他3个选择都不能表明这飞机的令人惊奇之处。 2. c 根据课文第7-8行…Captain Fawcett h as flown passengers to many unusual places 和最后一行。。。but Captain Fawcett did not take him because the trip was too dangerous 可以看出c. will fly passengers anywhere except very dangerous places(将载运旅客去任何地方，除了非常危险的地方)是正确的结论，其他3个选择都过于片面和绝对了。 3. c a. who is 句中修饰的词是物而不是人，因此不能用who 做关系代词； b. whom is : whom做定语从句中的宾语，而本句需要的是做主语的关系代词； d. whose is 不合语法 只有c. which is 是正确的，which 既可以做定语从句的主语，又可做宾语。 4. b 这是一个带形容词比较级的句子，已经有连词than. a. most surprising 和 d. most surprised 都是最高级，不合乎语法；d. more surprised 虽然是比较级，但surprised(感到惊奇)主语应该是人，而本句的主语是it,故不能选d; 只有b. more surprising(更令人惊奇的)最合乎语法和题目意思。 5. d