八年级下期units 3-4双单元练习

Units 3-4

一、单项选择

1.We're spending more money ________ food than we used to.

A．in B．on C．with D．for

2.________ we have a few minutes to wait for the train，let's have a cup of coffee.

A．Since B．Although C．Before D．While

3.My father always makes a terrible ________ when he cooks. And he never cleans it up.

A．matter B．decision C．pollution D．mess

4.It's ________ that I am working while everyone else is enjoying themselves!

A．similar B．educational C．independent D．unfair

5.Helen，the more careful you are during the exam，________ mistakes you'll make.

A．the more B．the fewer C．fewer D．more

6.David，don't eat junk food. It's important to ________ healthy habits in daily life.

A．develop B．choose C．raise D．carry

7.—Hurry up！We only have 15 minutes to catch the bus. —Oh，15 minutes ________ enough for us. A．are B．is C．were D．was

8.I don't mind ________ if you are tired.

A．to drive B．drive C．driving D．to driving

9.I never go to school late.________

A．So does Tom B．Neither does Tom C．So Tom does D．Neither Tom does

10.There's no need for you ________ if you don't want to.

A．to come B．coming C．come D．came

11.I wasn't worried about the situation because I knew I could ________ you.

A．take after B．care about C．hear from D．depend on

12.—Did you go to the School Art Festival? —Yes.The shows were _____ fantastic _____ before. A．too；to B．enough；to C．as；as D．so；as

13.I will give him the gift as soon as he ________.

A．will arrive B．arrive C．arrives D．arrived

14.Peter，it's not ________ big deal.You can talk to your friend on ________ phone.

A．/；a B．the；a C．an；the D．a；the

15.We don't have coffee.Would you like tea ________？

A．instead B．late C．early D．hard

16.Don't worry about your kids.They can take care of ________.

A．myself B．ourselves C．themselves D．himself

17.Though Mr. Smith is very busy，he offers ________ me how to swim.

A．teaching B．taught C．teach D．to teach

18.In order to improve our speaking ________，we keep practicing every day.

A．hobby B．skill C．reason D．part

19.After we sat down，dad ________ the menu and ordered my favorite dish for me.

A．looked after B．looked like C．looked through D．looked for

20.There are all kinds of food at the party.You can eat ________ you like.

A．whatever B．however C．whenever D．wherever

21.Linda，speak clearly ________ they can understand you.

A．because B．when C．as soon as D．so that

22.The party was great fun.We didn't leave ________ midnight.

A．until B．unless C．since D．after

23.When I walked into the classroom，I found Rick ________ my homework.

A．copy B．copies C．copied D．copying

24.—There are lots of people in the street. What happened? —________ we go and have a look? A．Why don't B．Why not C．How about D．Let’s

25. It’s really ____ you to drive so fast on such a rainy day. Slow down!

A. crazy for

B. crazy of

C. lazy for

D. lazy of

26. We shouldn’t push kids so hard and let them_______.

A. think about them

B. think of them

C. think about themselves

D. think for themselves

27.The two students came to school today. One rode a bike, __took a bus.

A. the other

B. other

C. another

D. others

28. Every day he _____ to bed ______ he finishes his homework, so he often feels tired.

A. goes, until

B. go, until

C. doesn’t go, after

D. goes, when

29. I think you will______ my house before six o’clock.

A. reach to

B. arrive at

C. get

D. arrive

30. He would allow John _____his answers____these difficult questions.

A. to copy, to

B. to write, of

C. copy, to

D. write, of

31. You should try to _______ your classmates.

A. get along

B. get along with

C. gets on well

D. get on

32. Why are you looking at me __________?

A. to surprise

B. surprised

C. in surprise

D. surprise

33. The result ______ us and we were all joyful.

A. surprise

B. surprises

C. surprised

D. surprising

二、用所给单词的适当形式填空。

1. Our country is ________________ (develop) very fast now.

2. These cakes are very_____________ (quickly) and easy to make.

3. It is ______________ (usually) to start a speech by thanking everybody for coming.

4. He always refused _______________ (lend ) his pen to me.

5. Do you allow me ______________(surf)the Internet on Sunday afternoon?

6. When I was worried about my math exam, Jim offered _______________(help) me with it.

7. Don’t stop! Continue________________(read) English.

8. When they argue, it’s like a big, black cloud _________________(hang)over our home.

9. They went to the zoo instead of_____________(watch) TV at home.

10. Jenny has to _______________ (competition) with eight other people for the job.

三、阅读理解

About your problem，sometimes most of you still want parents' help and advice. However，talking to them can be difficult. What should you do to make it easier?

The more you do something，the easier it will be. Everything seems difficult at first. But if you talk to your parents more often，you will be surprised to see the change. And next time when you have problems，you will feel more comfortable to talk with them.

Tell your parents something about you. You can share your school life with them. Even a small talk like what's for dinner can keep the relation between you and your parents strong and comfortable.

Maybe you also need to tell them some bad news like failing an exam. Don't be worried about what they will think of you. On the contrary (相反)，they will help you find out the reasons for your poor grades. And next time，you will do better.

Anyway，remember that you are the most important person to your parents in the world. If something they do upsets you，you shouldn't be angry with them. Just have a good talk，and I am sure everything will be better.

1.What will happen if you tell your parents some bad news according to the passage?

A．They will be angry. B．They will talk to the teachers.

C．They will offer some help. D．They will let you solve the problems by yourself.

2.How many pieces of advice does the writer give in the passage?

A．Two. B．Three. C．Five. D．Seven.

3.What's the main idea of the third paragraph?

A．We should talk to our parents more often. B．It's best to share your life with your parents.

C．It's never too late to talk with your parents. D．We should work out something difficult by ourselves.

4.Which of the following is NOT true according to the passage?

A．It's necessary to get parents' advice when we have problems.

B．We can work out some problems by talking to parents often.

C．It's not a good idea to talk to parents about some bad news.

D．We should be understanding about some things our parents do.

5.What's the best title for the passage?

A.How to talk to parents

B.When to talk to parents

C.What to tell the parents

D.Where to talk to parents

Have you ever seen guide dogs? Guide dogs are the best "helping hands" for the (1)_____. Most guide dogs are both their eyes and their good friends. (2)_____ makes dogs become guide dogs? The (3)_____ requirement (要求) is that a guide dog must be healthy and have a good temper (脾气). Second, one of the dog’s parents must be a guide dog. Third, when they are two months old, they would be sent to the training center. People there (4)_____ them how to get along with people. Then they can understand (5)_____ to help people. Fourth, when they are one year old, they have to return to the training center to learn more skills about (6)_____ people. Then, if they pass the test, they will be guide dogs.

Guide dogs help the blind (7)_____. Can other animals help disabled people? Now, some other animals are being trained to help them. In the USA, some monkeys have been (8)_____ trained to help those people that can’t move any more. The monkeys can put a CD into the CD player, open the fridge (冰箱) to get (9)_____, turn on the light and even hand the owner the TV remote control (遥控器). (10)_____ these are simple tasks, the monkeys have to have about 18 to 24 months’training to be able to do them. Animals are not only people’s pets, but also our best helpers.

1.__________ 2 __________ 3 __________ 4__________ 5__________

6__________ 7__________ 8___________ 9__________ 10___________

五、书面表达

在学习和生活中，每个人都有苦恼的事。假设你叫王龙，你的好朋友Helen遇到了一些烦恼的事。请根据下面的提示，给她写封80词左右的邮件，并提出自己的建议。开头和结尾已给出，不计入总词数。

*shy；don't have many friends at school；

*math is difficult，often get poor grades；

*difficult to talk to her parents.

Dear Helen，

I'm sorry that you have so many problems. Here is my advice for you. I hope you will feel happy again.______________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ Wang Long

单项选择BADDB ABCBA DCCDA CDBCA DADAB CADBA BCC

阅读理解CBBCA

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八年级上册物理单元测试题(含有答案的)

第一章 走进实验室 单元测试题 一.选择题(每小题2分，共24分) 1.下列测量器材中不是测量长度的工具是（ ） A.钢卷尺 B.米尺 C.天平 D.软尺 2.测量某一物件长度时，记录了以下四个数据，其中肯定记录错误的数据是 （ ） A.25.82cm B.25.81cm C.25.18cm D.25.83cm 3.下图为测某种硬币直径的几种方法，其中正确的是（ ） c m 0 1 2 1角 c m 3 4 5 1角c m 0 1 2 1角 c m 0 1 2 1角 A B C D 4.常用的长度单位按由小到大的排列顺序的是（ ） A.dm 、cm 、mm 、μm、m B.cm 、dm 、mm 、μm、m C.μm、mm 、cm 、dm 、m D.m 、dm 、cm 、mm 、μm 5.下列物体的长度，最接近3m 的是（ ） A.兵乓球的直径 B.拳头的宽度 C.黑板的长度 D.保温瓶的高度 6.某同学用分度值是１mm 的刻度尺测量某一物体的长度，下列哪个数据是可能的（ ） A.24cm B.24.1cm C.24.12cm D.24.122cm 7.有关误差的说法中，正确的是（ ） A.误差只能减小而不能消除 B.可以做到没有误差 C.用多次测量求平均值的方法可以消除误差 D.误差是由错误造成的，因此可以避免 8.用刻度尺测长度时，下边哪一项要求不是必须的 （ ） A.视线与刻度尺垂直 B.零刻度线对齐被测物体左边缘

C.将刻度尺放正 D.使刻度贴近被测物体 9.下列单位换算过程中正确的是（） A.1.8m=1.8×1000=1800mm B.1.8m=1.8m×1000=1800mm C.1.8m=1.8m×1000mm=1800mm D.1.8m=1.8×1000mm=1800mm 10.在测量跳远成绩时，下列测量工具中比较合适的是（） A.分度值是１厘米的15米皮卷尺 B.分度值是１毫米的米尺 C.最小刻度是１厘米的1.5米钢卷尺 D.分度值是0.1毫米的游标卡尺 11.纳米材料的出现对信息技术、材料技术的提高具有很大的推动作用，"纳米"实际上是一个长度单位，1纳米=10-9米，那么0.3纳米可能是下列哪个物体的长度（） A.某原子的半径 B.一枚硬币的厚度 C.一根铅笔芯的直径 D.地球的半径 12.要测量1元纸币的厚度，使测量结果的误差较小，下列方法中最佳的是（） A.用刻度尺仔细地测量1元纸币的厚度 B.用刻度尺分别多次测量1元纸币的厚度，然后求平均值 C.用刻度尺分别测量10张1元纸币的厚度，然后求平均值 D.用刻度尺测100张1元纸币叠加起来的总厚度，再除以100，求出一个1张1元纸币的厚度 二.非选择题(共46分) 13.填上适当的单位: 一个中学生的身高约为160________________； 一本物理课本长3_________； 一场足球赛约90________赛完； 百米赛跑的世界纪录所用时间是约9.72________. 14.科学探究的主要环节是、、、进行实验收集证据、、交流合作、评估。 15.纳米技术是高新科学技术和工程技术，纳米是很小的长度单位，若一个原子的直径是