1、双基限时练(十二) Unit 4 Part .单词拼写1The dog has _(咬) a hole in my trousers.答案 bitten 2There were many types of _(恐龙), some of which were very large.答案 dinosaurs 3The _(事件) caused a series of events that nobody had foreseen.答案 incident 4The old table was covered in _(尘土)答案 dust 5The dog looks _(凶猛的), but it
2、is gentle really.答案 fierce.选词填空have a good effect on， protect . from .， in danger of， set up， pay attention to， in peace， die out， come into being， without mercy， do harm to1This medicine _ this disease.答案 has a good effect on 2This kind of animal is _ in the world.答案 dying out 3Leave him _； hes try
3、ing to work.答案 in peace 4Our teachers always _ combining theory with practice.答案 pay attention to 5His father gave him some money to _ him _ in business.答案 set; up 6How many workers are _ losing their jobs?答案 in danger of 7They huddled together in the corner to _ themselves _ the wind.答案 protect; fr
4、om 8Dinosaurs lived on the earth tens of millions of years ago, long before humans _.答案 came into being9In the past farmers in Africa hunted wild elephants _.答案 without mercy 10Nuclear power will _ our health and safety if it is not used properly.答案 do harm to.用所给词的适当形式填空1No matter how _ (power) the
5、 enemy seems, we must fight against them to the end.答案 powerful 2I tried to call him, but without _ (succeed)答案 success 3She felt very lonely after the _ (lose) of her husband.答案 loss 4Fruit juice can be _ (harm) to childrens teeth.答案 harmful 5My father gives_ (protect) against the dog.答案 protection
6、6The Teachers Day is a special day for the _ (appreciate) of teachers.答案 appreciation 7Nowadays college students _ (employ) difficulty has become a major social problem.答案 employment 8Now a new factory _ (build) near my village. The trees _ (cut) down and the ground has been flattened.答案 is being bu
7、ilt; have been cut.阅读理解New research shows sheep are cleverPeople often make jokes about how dull sheep are, but new research shows they may be cleverer than we think. Researchers at the University of Cambridge discovered that Welsh mountain sheep have brainpower that equals rodents (啮齿动物). Tests fou
8、nd that the sheep can map the area they live in, and some may even be able to plan ahead.Young fish prefer noisy neighboursA new study has shown that young fish like to live on reefs with noisy neighbours! Researchers from the universities of Auckland and Bristol found that young fish looking for a
9、home choose areas where other noisy fish live. The scientists produced all kinds of sounds which had been recorded in different natural environments. The young fish seemed to prefer the sounds of natural reefs, complete with noisy animals! The scientists compared the choice to a music fan wandering
10、around at a music festival, choosing to set up a tent closest to the music they like best!Butterflies are disappearingA new study has shown that 17 species (物种) of butterfly found in Europe have dropped by 70% in the last 20 years. The information collected from 3,000 sites across 15 countries shows
11、 it may be caused by the loss (减少) of grasslands covered with flowers. You can encourage butterflies to come into your garden by planting flowers.1What is the passage mainly about?A. Some new studies about animals.B. Peoples wrong ideas about animals.C. Why the number of animals has dropped.D. The i
12、mportance of protecting animals.答案与解析 A 这篇文章讲了对羊、鱼和蝴蝶三种动物的新发现。A 项正确。2According to the first paragraph, we may infer that sheep _.A. are less clever than rodentsB. can find their homeC. can read mapsD. are good planners答案与解析 B 从第一段最后一句中“the sheep can map the area they live in”可知，绵羊可以对自己生活的地域制图，更不用说找到
13、回家的路了。B 项正确。3When young fish are looking for a home, they like to _.A. live in a noisy environmentB. live in areas close to their parentsC. choose the reefs which are quietD. choose other kinds of fish as neighbors答案与解析 A 从 Young fish prefer noisy neighbours标题以及第二段内容都可看出，A 项正确。4Which seems to have t
14、o do with the number of butterflies?A. The species of grass in grasslands.B. The species of trees in grasslands.C. The number of flowers in grasslands.D. The number of animals in grasslands.答案与解析 C 从文章最后两句话可知，蝴蝶的减少和草地上的花减少有关。C 项正确。5In which part of a newspaper can we most probably read the passage?A
15、. Geography. B. Culture.C. Travel. D. Nature.答案与解析 D 文章讲了三种动物的新发现，放在 Nature“自然”专栏再合适不过。D项正确。.阅读理解七选五Say goodbye to your shynessThere is nothing wrong with being shy. _1_ If you want to be more comfortable talking to people, you can do it. Here is how.Start smallAt home, practice smiling and saying h
16、i while looking at yourself in the mirror. _2_ Try to look them in the eye, too. Once that becomes a habit, try doing the same with kids you dont know as well.Questions are most importantOnce you are used to smiling and saying hi, its time to start a conversation! _3_ Whats your favourite movie? Why
17、 did you choose that book for your report? Just be careful not to ask questions that might be harmful. If you are feeling unsure (不确定的) about a question, ask yourself if youd feel bad if someone asked you that same question._4_When you are shy, its easy to worry about what others think of you. In fa
18、ct, thats just a thought inside your head, and nobody is watching your every move. So you can change it.Choose facetoface timeMany shy girls say its easier for them to talk to people online. However, using technology to feel safer may make it harder for you to overcome (战胜) your shyness. _5_ And put
19、 in some facetoface time with the people in your life.A. Conversation startersB. Change your thinking C. Many happy, successful people are shy.D. Most people enjoy talking about themselves.E. Then try this at school with kids you know well.F. Ask a question or two about a persons interests.G. Now pu
20、t down your phone and step away from the computer. 答案 1.C 2.E 3.F 4.B 5.G.语法填空I gain a lot of rewarding experiences from some social activities. Our local Community Youth Club is a very popular organization with young people in my town. I have been a member for four years now and Ive taken part in a
21、 lot of interesting projects, _1_ include fun activities such as holiday camps and discos. We have organized sports competitions and we have even made a video.But it isnt all just fun, we have also started doing social work to help people in our neighborhood. We _2_ (organize) activities for small c
22、hildren during the holidays. We have also formed a special support group to help young people stop _3_ (smoke)We are particularly proud of the most recent group we have created. It organizes regular visits _4_ the local old peoples home. My class spent an afternoon at a home and everyone found the v
23、isit very rewarding. The old people there were _5_ (talk) and they told us their personal stories _6_ (cheer). During our visit, the home was filled with _7_ (laugh). But we realized that life wasnt always easy. Some of them were in poor health and were very _8_ (happy)Many young people like me do n
24、ot live with our grandparents and we have little contact with old people. As a result, many young people dont know _9_ they are like. After this visit, my friends and I decided that we should do _10_ to help improve the quality of their lives.答案与解析 1which 这是一个非限制性定语从句，先行词 projects，指物，在设空后的从句中作主语，故用关
25、系代词 which引导非限制性定语从句。2have organized 设空处所填词在句中作谓语，又根据句中时间状语 during the holidays可知 organize表从过去发生到现在的动作，应用现在完成时态，填 have organized。3smoking 根据语境可知该空表“停止抽烟”应用动名词作 stop的宾语。4to visit to . “对的拜访” 。5talkative 设空前是系动词 were，故设空处应填形容词作表语。talk 的形容词是talkative“健谈的” 。6cheerfully 设空处所填词在句中作状语修饰谓语 told，应用副词形式，故填cheerfully“开心地” 。7laughter 设空前是介词 with，故设空处应填名词。laugh 的名词形式是laughter。8unhappy 根据语境“他们中有些人身体不好而且不快乐”可知该空填所给词的反义词 unhappy。9what 设空处所填词引导宾语从句，且在从句中作宾语，故用 what引导宾语从句。10something 根据语境“我认为我们应该做些事情以提高他们的生活质量”可知该空填代词 something。
