1、UNIT 4 SPACE EXPLORATIONSection Discovering Useful Structures基础测评. 单句语法填空1. (keep) fit, she takes exercise every day.2. I cant afford (buy) such an expensive computer. 3. Were talking about how (overcome) the present difficulties. 4. My grandmother woke up only (find) everybody had gone. 5. You are
2、the right person (do) the job. 6. Marie is a pleasant person (work) with. 7. She was surprised (see) George walk in. 8. The child is old enough (dress) herself. 9. I ran all the way so as not (be) late for the important meeting. 10. Let those in need (understand) that we will go all out to help them
3、. 答案：1. To keep2. to buy3. to overcome4. to find5. to do6. to work7. to see8. to dress9. to be 10. understand. 完成句子1. 为了救落水儿童,他付出了自己的生命。 the drowning child, he laid down his own life. 2. 这个男孩非常努力,为的是弥补失去的时间。The boy worked very hard up for the lost time. 3. 我定下一个规矩,每天早上打太极拳。I Tai Chi every morning. 4
4、. 过去老板让工人们每天工作十几个小时。The workers over ten hours a day by the boss in the past. 5. 我做了一个梦,梦到自己像鸟儿一样在天空中飞翔。 I had in the sky like a bird. 6. 我走到教室,结果发现教室是空的。 I went to the classroom, it empty. 7. 她不知道该乘哪路公共汽车。She didnt know . 8. 每天晚上这个老人都坐在电视机前,高兴地看着演的任何节目。The old man sat in front of the television eve
5、ry evening,_ _ anything that happened to be on. 9. 如果你想和我们一起去,你应该八点钟前准备好。If you want with us, you should be ready by eight oclock. 10. 老师建议我们先休息。The teacher a rest first. 答案：1. In order to save2. in order/so as to make3. make it a rule to do4. were made to work 5. a dream to fly6. only to discover 7
6、. which bus to take8. happy to watch9. to go 10. advised us to have提升测评. 语法填空Good afternoon, ladies and gentlemen. Im glad 1. _(introduce) this English speech contest. As we all know, it is very important for us 2. _(master) a foreign language. Taking part in English speeches is a helpful way 3. _(l
7、earn) English. Everyone wants 4. _(show) their best. When we have been preparing for it,we can improve our ability 5. _(learn) English. In the process of the 6. _(compete),you should pay attention to the rules 7. _(make) by us. First, you should make your voice 8. _(hear) clearly by everyone, so it
8、is very necessary 9. _(speak) loudly. Second, you should try your best 10. _(express) yourself in English fluently. Finally, you should finish your speech in five minutes. 答案：1. to introduce2. to master3. to learn4. to show 5. to learn6. competition7. made8. heard 9. to speak10. to express. 阅读理解AWha
9、ts a spacewalk? Any time an astronaut gets out of a spacecraft while in space, it is called a spacewalk. Astronauts go on spacewalks for many reasons. For example, experiments can be placed on the outside of a spacecraft. This lets scientists learn how being in space affects different things. By goi
10、ng on spacewalks, astronauts can also fix things instead of bringing them back to Earth to fix. When astronauts go on spacewalks, they wear spacesuits to keep themselves safe. Inside spacesuits, astronauts have the oxygen they need to breathe and the water they need to drink. To keep the astronauts
11、and the spacecraft safe, the astronauts must leave and go back to the spacecraft through a special door. When on a spacewalk, astronauts use safety tethers to stay close to their spacecraft. Tethers are like ropes, and connect the spacewalkers with the spacecraft. They keep astronauts from floating
12、away into space. Another way astronauts stay safe during spacewalks is by wearing a SAFER. The SAFER is worn like a backpack. It helps an astronaut move around in space. How do astronauts train for spacewalks? One way is by going for a swim. Floating in space is a lot like floating in water. Astrona
13、uts practice spacewalks underwater in a huge special swimming pool. For every one hour they will spend on a spacewalk, astronauts need to train seven hours in the pool. Another way astronauts practice for a spacewalk is by using virtual reality(虚拟现实). It looks and feels just like a spacewalk. Today,
14、 only three countries have finished spacewalks independently. They are Russia, the United States and China. The first person to go on a spacewalk in the world was Alexei Leonov from Russia. Zhai Zhigang is the first Chinese astronaut to go on a spacewalk. The world record of spacewalks is held by Ru
15、ssian astronaut Anatoly Solovyev. He has been on 16 spacewalks and spent more than 82 hours outside in space. 1. How many ways are used to keep the astronauts safe during space-walks?A. Two. B. Three.C. Four.D. Five. 解析：细节理解题。第二段描述了太空漫步需要具备的四个安全条件:宇航员必须身穿特殊的宇航服;进出航天器必须通过一个特殊的门;宇航员必须身系链绳;宇航员必须身穿一个形状类
16、似背包的“SAFER”。故选C。答案：C2. Whats the meaning of the word “tethers” in paragraph 2?A. 吊篮B. 系绳C. 笼子D. 钩子解析：词义猜测题。根据后一句“Tethers are like ropes, and connect the spacewalkers with the spacecraft.”可知,tethers是像绳子一样的东西,再结合选项提示可推断tether意为“系绳”。故选B。答案：B3. Astronauts train for spacewalks by . A. floating in spaceB.
17、 using virtual realityC. going on spacewalks outside a spacecraftD. training in water in a common swimming pool解析：细节理解题。根据第三段中的“Another way astronauts practice for a spacewalk is by using virtual reality.”可知,进行太空漫步训练的方式之一是利用虚拟现实。故选B。答案：BBAs Canadians approach the ends of their career, they start to
18、wonder how much they need to save to maintain their standard of living in retirement. This is not an easy question as many variables are unknown. The first is life expectancy. Life expectancy is one of the most misunderstood aspects of retirement income planningyet, it is one of the most important f
19、actors. Most people assume that life expectancy is the same as lifespan(寿命). This is not correct. Instead, life expectancy is a medium number of yearssuch that 50 percent of a particular age group will die before this number of years, and the other 50 percent will die after this period.How you save
20、for retirement is also important. What you care about in retirement is how much income you have after tax and after inflation. You want to know what life-style you can maintain in retirement. If you saved for retirement only using registered retirement savings plan(RRSP), you will need a larger acco
21、unt balance, as every dollar that you redeem from an RRSP is fully taxable(纳税的) while funds withdrawn from a tax-free savings account (TFSA) are free of tax. And if you were lucky enough to save funds outside these structures, only the earnings on these funds are taxable. Government pension rights a
22、re important in retirement income planning. Old Age Security(OAS) offers up to $569 a month and the Canada Pension Plan (CPP) gives a maximum of $1,065 a month. The average right for new beneficiaries is $640 a month. But lets look at this from another point of view. When you retire, one of the grea
23、test risks that you have is running out of money. If you can maintain your lifestyle on your personal investment, then delaying the start of your CPP pension can be viewed as a version of longevity insurance(保险). 4. Why is it difficult to solve the question mentioned in paragraph 1?A. Because of peo
24、ples minds. B. Because of peoples living standard. C. Because of peoples lifestyle. D. Because of changeable factors. 解析：细节理解题。根据第一段中的“This is not an easy question as many variables are unknown.”可知很难解决这个问题,因为有很多未知的变数。答案：D5. How do people avoid risks after retirement according to the text?A. Keeping
25、accounts balanced. B. Making a spending plan. C. Saving funds outside the mentioned structures.D. Maintaining personal investment and delaying CPP. 解析：细节理解题。根据最后一段中的“If you can maintain your lifestyle on your personal investment, then delaying the start of your CPP pension can be viewed as a version
26、 of longevity insurance.”可知保持个人投资、推迟退休金计划是规避风险的有效方式。答案：D6. What might be the best title for the passage?A. Canadians Pension Plan B. Saving for RetirementC. Extending Life Expectancy D. Managing Personal Account解析：主旨大意题。根据第一段中的“As Canadians approach the ends of their career, they start to wonder how much they need to save to maintain their standard of living in retirement.”和最后一段中给出的解决办法可知,全文围绕如何为退休攒钱所展开。B项最能概括全文。答案：B
