Book 3 Unit 4 Space Exploration
Period 3 Reading For Writing
Ⅰ.单词认读关(先填后记诵)
基础词汇记其形
1. 地球，地球仪________________________ 2. 论证，争辩__________________________
3. 肤浅的，浅的________________________4. 模式，图案__________________________
5. 监视器，检测仪，监测，监控___________ 6. 资源，财力，物力_____________________
7. 有限的_____________________________
定期的，经常的______________________
9.系，绑，贴___________________________
10. 分析 n.___________________________
【答案】
1. globe
2. argument
3. shallow
4. pattern
5. monitor
6. resource
7. limited
8. regular
9. attach
10. analysis
二、核心词汇记中变
__________adj．致命的；灾难性的(=_____________)→__________n．命中注定的事（尤指坏事）；命运的安排；命运
__________adv．经常；定期地→________adj.定期的；经常的；正常的→________adj.不规则的；无规律的→__________n.规章,规则,条例
_________ n.限度;限制 vt.限制;限定→_________adj.有限的→_________ adj.无限的→_____________adj.无限制的;无止境的
_____________ n．神秘事物；谜→_____________ adj.神秘的
_____________ n.和谐→_____________ adj.和谐的
_____________ adj.足够的;充足的(=_________=_________)→_____________ n.充足 __________adj.效率高的→_________ n.高效,效率
____________adj.熟练的,流畅的→_____________ n.流畅,流利
________vt.缺乏;不足n.缺乏;不足→________adj.缺乏的,不足的
__________ vt.分析,分解,解释→→__________n.分析→复数形式:__________n. [pl]
类似变法:_________(=________=__________=_________) vt.强调;加强语气;重读→__________ n.强调;加强语气;重读→复数形式:_________ n. [pl]
___________ n. 资料；数据→____________n. [pl]资料 ___________n. 媒介, 手段, 方法, 工具 adj. 中等的, 适中的→__________n. [pl]媒介
_____________ n. 宇宙；世界；领域→_____________adj. 全体的；广泛的, 普遍的→_____________ adv.
attach vt.系上;贴上;使依附;使依恋→_____________ n. 附着, 附属; 喜欢…，系在…上__________________
___________vt.描写,叙述→_____________n.描述,形容
___________v. 讲(故事),叙述→____________n.叙述,讲述→__________n. 叙述者
【答案】
fatal adj．致命的；灾难性的(=deadly)→ fate n．命中注定的事（尤指坏事）；命运的安排；命运
regularly adv．经常；定期地→regular adj.定期的；经常的；正常的→irregular adj.不规则的；无规律的→regulation n.规章，规则，条例
limit n.限度;限制 vt.限制;限定→limited adj.有限的→unlimited adj.无限的→limitless adj.无限制的;无止境的
mystery n．神秘事物；谜→mysterious adj.神秘的
5. harmony n.和谐→harmonious adj.和谐的
6. sufficient adj. 足够的; 充足的(=adequate=enough→sufficiency )n.充足 efficient adj. 效率高的→efficiency n.高效,效率
7. fluent adj. 熟练的, 流畅的→fluency n. 流畅，流利
8. lack vt. 缺乏;不足n.缺乏;不足→ lacking adj. 缺乏的,不足的
9. analyse vt.分析,分解,解释→analysis n.分析→复数形式:analyses n. [pl]
类似变法:emphasize(=stress=highlight=underline) vt.强调;加强语气;重读→emphasis n.强调;加强语气;重读→复数形式:emphases n. [pl]
datum n. 资料；数据→data n. [pl]资料 medium n. 媒介, 手段, 方法, 工具 adj. 中等的, 适中的→media n. [pl]媒介
universe n. 宇宙；世界；领域→universal adj. 全体的；广泛的, 普遍的→ universally adv.
attach vt.系上;贴上;使依附;使依恋→attachment n.附着,附属; 喜欢…,系在…上 be attached to…
describe vt.描写,叙述→description n.描述,形容
narrate v. 讲(故事),叙述→narration n.叙述,讲述→narrator n. 叙述者
阅读词汇识其义
Ⅱ.语块记诵关(先填后记诵)
1. 导致；造成 ___________________
2. 所以；结果（是） ___________________
3. 提供生活所需 ___________________
4. 最后 ___________________
5. 用完；耗尽 ___________________
6. 浪费……做…… ___________________
7. 许多 ___________________
8. 努力做某事. ___________________
9. 目前 ___________________
答案：
1. result in 2. as a result 3. provide for sb. 4. in closing 5. run out 6. waste...doing 7.a number of
8. in one’s effort to do sth 9.at present
Present an argument about space exploration
① Read the argumentative essay about space exploration and answer the questions.
1. Why are some people against space exploration
__________________________________________________________________________________________Because they think it is a waste of time and money, and that we should feed the world’s poor and find immediate solutions to other problems, such as pollution and fatal diseases, instead.
What has space exploration done for food production
__________________________________________________________________________________________
Satellites study land and weather patterns. These studies help farmers grow more crops and warn them about natural disasters before they occur.
What did the pictures of Earth from space make people realise
__________________________________________________________________________________________
They made people realize that our planets resources are limited.
How does space exploration benefit the products that people use nowadays
__________________________________________________________________________________________
Advanced technology developed for space exploration has promoted technological improvements that benefits us all by allowing products to be made to a higher standard.
How to write an argumentative essay
Para 1: 开门见山，提出主题(1－2句)
Useful Expressions and sentences
. We had a heated discussion about/on+话题.
我们就……进行了热烈的讨论。
2. Recently, …has brought about a heated discussion.
最近，……引起了热烈的讨论。
3. There is a widespread concern over the issue that+句子.
……问题引起了广泛的关注。
人们对此有不同的看法
4. People have taken different attitudes towards+话题.
5. People hold different opinions on this problem.
6. People take different views on this matter.
7. Opinions vary from person to person.
8. Opinions are divided on the question.
Para 2: 表达不同的观点及其理由
模板
正方观点
A majority of people approve of the opinion that (正方观点). From their point of view, there are some factors contributing to this attitude, which are as follows：in the first place, (原因一) ．Furthermore, (原因二) ．
反方观点
On the contrary, some people differ in their opinions on this matter. They hold the view that (反方观点) ．On the one hand, (原因一) ．On the other hand, (原因二) ．
Useful Expressions and sentences
1. Some/Most/Few of them hold the opinion that...
他们中的一些/大多数/少数人认为。
2. Some/Most/Few of them are in favor of/ for the idea that...
他们中的一些/大多数/少数人赞成……的观点。
3. People who are opposed to/ against the idea think that...
反对这个想法的人认为……。
4. Some people believe that...Others argue that...
有些人认为…… 另一些人认为……
5. However, the flip side of the coin is …….
然而；另一个相反的观点是……。
Para 3: 说明自己的观点
Useful Expressions and sentences
1. As far as I am concerned,... ……就我个人而言
2. From my perspective,... ……在我看来
3. From my point of view,... ……在我看来
4. In my opinion,... ……依我所见
5. It’s my opinion that+句子. 我的看法是……
6. Taking all factors into consideration, we may come to the conclusion that...
把所有的因素加以考虑，我们可以得出这样的结论……。
7. In a word, only through...can we have a bright future.
总之，只有通过……我们才能有一个光明的未来。
Sample:
Outer Space Explorations, YES or NO
We had an argument over whether it is necessary to carry out outer space explorations at a class meeting the other day. Different students have different attitudes towards it.
Some of us think it’s important to research the outer space. First of all，people can get a better understanding of the outer space through their exploration. Secondly, new resources can be found there for human being. Thirdly, this exploration can possibly bring about new living space for human life in the near future.
However, others are strongly against it. They believe that it takes so much money to do this kind of exploration, which is not worth the value. Besides, it is very dangerous for astronauts to do such work in the outer space.
In my opinion, people should be pioneering, and therefore such explorations into the outer space are worth trying out.
Part 1 核心词汇
1.【词汇拓展】_________vt.系；绑；贴；(使)附属；(使)隶属→ _________n．附件；喜爱；连接
答案：attach, attachment
【常用搭配】
be attached to sb/sth 依恋；附属于；爱慕某人(某物) attach sth to sth 把……附在……之上 attach oneself to sb 参加；和……在一起 attach to sb/sth 与……有联系 attach importance to 重视
【即学即练】
1.一把金属钥匙系在绳子上。
A metal key______________________ the string.
2.我认为这项研究十分重要。
I ___________________________________this research.
3.这些学校曾一度归教会主管。
At one time the schools________________________the church.
答案：1.was attached to 2.attach great importance to 3.were mainly attached to
2.【词汇拓展】_________vt.&vi.论证;争辩;争论→ _________argument n.争论;争辩
答案：argue, argument
【常用搭配】
argue with sb.(about/over/on sth.) (就某事)与某人争论 argue for/against sth. 据理赞成/反对某事 argue that ... 主张……;认为…… argue sb. into doing sth. 说服某人做某事 argue sb. out of doing sth. 说服某人不做某事
【即学即练】
1.Father argued__________ an increase in our pocket money.
2.As far as I know, they argue___________the right to vote.
3.We tried many ways to argue him _________following our advice, but in vain.
4.他们之间就解决这个问题的办法展开讨论。
They___________________________the way of dealing with the problem.
5.面对这样的争论,不同的人可能会有不同的意见。
__________________________，different individuals may come to different opinions.
答案：1.against 2.for 3.into 4.argued with each other about 5.Faced with such an argument
3.result in导致；造成
【常用搭配】
result from 由……产生 as a result of 由于……的原因 as a result 结果;因此;所以，后面接表示结果的句子 as a result of ... 作为……的结果, 其后面的部分表示原因，of后面接名词或动名词。 without result 毫无结果
【联想拓展】
“导致”的意思，其同义词有cause(引起)，bring about(引起；导致；致使)；lead to(导致)；contribute to(有助于；向……投稿)等。
【即学即练】
1.工作压力导致了他精神上的疾病。现在他的健康处于危险中。
Work stress_______________his mental illness. His health is at risk now.
2.由于吃得太多,他肚子疼。
His stomachache_____________his eating too much.
3.人们现在比过去享有更好的医疗服务，因此寿命更长了。
People have better access to health care than they used to, and _____________, they live longer.
4.由于这些问题,人口由1841年的820万减少到1851年的660万。
__________________ these problems, the population fell from 8. 2 million in 1841 to 6.6 million in 1851.
5.他是因为过度劳累而得了癌症。
His cancer ________________________ the overfull tiredness.
→The overfull tiredness _________________ his cancer.
答案：1.resulted in 2resulted from 3.as a result 4.As a result of 5.resulted from, resulted in
run out 用完;耗尽
【联想拓展】
run out用完；耗尽 run across 偶然遇见(或看到) run at 攻击 run after 追赶；追求 run for 竞选 run into 遇到；撞上 run out of 用完某物
【知识拓展】
辨析run out, run out of, give out, use up run out“…用完了”,是不及物动词短语，其主语通常为时间、食物、金钱等名词 run out of “用完了”,是及物动词短语，表示主动意义，主语一般是人 give out “用尽;精疲力竭”，为不及物动词短语 use up “用完;消耗尽”,为及物动词短语
【即学即练】
1.到交通通畅的时候,我们将已经用完汽油了。
By the time the traffic clears, we will have ____________ gas.
2.她已经用完了钱,并且她的耐心也快耗尽了。
She has _____________ her money and her patience is also
3.跑了那么长一段距离后,他的体力耗尽了。
His strength _____________ after he ran that long distance.
4.我的钱用完了,所以我必须回家。
My money has been _______________，so I have to return home.
答案：1.run out of/used up 2.run out of/used up 3.gave out 4.used up
globe n.地球；世界；地球仪→_________ adj.全球的，全世界的；全面的，整体的→_________ adv. 全球地；全局地；世界上
【即学即练】
Three large _________(globe) stand on the floor. 地板上立着三个大地球仪。
It is believed that greenhouse gases are the main causes of _________(globe) warming. 一般认为温室效应气体是导致全球变暖的主因。
Today, as urban population explodes __________(globe), cities become more crowded. 今天，随着全球城市人口激增，城市变得更加拥挤。
答案：
globe n.地球；世界；地球仪→global adj.全球的，全世界的；全面的，整体的→globally adv. 全球地；全局地；世界上
Three large globes stand on the floor. 地板上立着三个大地球仪。
It is believed that greenhouse gases are the main causes of global warming. 一般认为温室效应气体是导致全球变暖的主因。
Today, as urban population explodes globally, cities become more crowded. 今天，
regularly adv. 经常；定期地→__________ adj. 定期的；有规律的→__________ adj.不规则的；不定期的→regulate v. 规定→____________ n. 规章；规定
on a regular basis = regularly定期地
【即学即练】
The equipment is checked __________________. 设备定期进行检查。
Exercising ____________(regular) will pay dividends in the end. 经常运动最终会对身体大有好处的。
All the passengers, according to the new ____________(regulate), are to be inspected before boarding the subway.根据新规定，所有乘客在上地铁前都要接受检查。
答案：8.regularly adv. 经常；定期地→regular adj. 定期的；有规律的→irregular adj.不规则的；不定期的→regulate v. 规定→regulation n. 规章；规定
on a regular basis 定期地
① The equipment is checked on a regular basis. 设备定期进行检查。
② Exercising regularly will pay dividends in the end. 经常运动最终会对身体大有好处的。
③ All the passengers, according to the new regulation, are to be inspected before boarding the subway.根据新规定，所有乘客在上地铁前都要接受检查。
limited adj. 有限的→_____________ n. 限制；局限→_____________ adj.无限的
【即学即练】
① My life is ____________(limit),but learning is ____________(limit).我的生命是有限的，但学习是无限的。
②The EU has set strict _____________(limit) on pollution levels. 欧盟对污染程度订下了严格的限制。
① 答案：limited adj. 有限的→limit n. 限制；局限→limitless adj.无限的
My life is limited,but learning is limitless.我的生命是有限的，但学习是无限的。
②The EU has set strict limits on pollution levels. 欧盟对污染程度订下了严格的限制。
Part 2 核心句型
Part 1 动词的形式变化和词形转换
1．Tony (purchase) a plane ticket for me in advance online before I set off for the airport.
【答案】had purchased
【详解】考查动词时态。句意：在我出发去机场之前，托尼已经提前在网上为我买了一张机票。分析句子可知，此处为谓语动词的填入，结合从句动词set off以及before可知，此处主句动词应为在从句动作发生之前，为过去的过去，即过去为完成时。故填had purchased。
2．Mary decided to find a way to end the (argue) with her husband.
【答案】argument
【详解】考查名词。句意：玛丽决定想办法结束和丈夫的争吵。分析句子可知，空处作end的宾语，应用名词argument，意为“争吵，争论”，且此处应该是特指与丈夫的一次争吵，argument应用单数形式。故填argument。
3．The (analyze) of a problem is the starting point for its solution.
【答案】analysis
【详解】考查名词。句意：分析问题是解决问题的起点。作主语应用名词analysis，根据is可知为单数。故填analysis。
4．Even if your time is (limit), do take exercise regularly to (strength) your body.
【答案】 limited strengthen
【详解】考查形容词和动词。句意：即使你的时间有限，也要经常锻炼来增强你的身体。分析句子可知，空一置于系动词is后应用形容词作表语，根据句意填limited“有限的”；空二作目的状语用不定式形式，to是不定式符号，接动词原形strengthen“增强”，故填limited；strengthen。
5．In the future, our smart home (monitor) our health for us every day.
【答案】will be monitoring
【详解】考查动词时态。句意：在未来，我们的智能家居将每天为我们监测我们的健康状况。分析句子结构可知，本句缺少谓语，所以monitor作本句谓语，根据时间状语In the future，应该用一般将来时，以及every day描述的是一直持续的状态，所以应是将来进行时。故填will be monitoring。
6．I feel there is something (lack) in my life.
【答案】lacking
【详解】考查形容词。句意：我觉得我的生活中少了些什么。空处应用形容词，作something的后置定语。lacking表示“缺失的，”。故填lacking。
7．Fortunately, she was admitted to a local hospital (attach) to a key university.
【答案】attached
【详解】考查非谓语动词。句意：幸运的是，她住进了当地一所重点大学附属医院。空处需填非谓语动词作后置定语修饰名词hospital，attach和hospital为逻辑动宾关系，需用过去分词形式。故填attached。
8．We meet (regular), once a month, to exchange ideas about the newly-read books.
【答案】regularly
【详解】考查副词。句意：我们定期开会，每月一次，就新读的书交换看法。分析句子可知，设空处修饰动词meet，应用副词。故填regularly。
9．The hotel has many special (facility) for welcoming disabled people.
【答案】facilities
【详解】考查名词复数。句意：这家旅馆有许多专门的接待残疾人的设施。由名词前的many可知，空处应使用其复数形式。故填facilities。
10．The effects of (globe)warming, while not immediate, are potentially catastrophic(灾难性的).
【答案】global
【详解】考查形容词。句意: 全球变暖的影响虽然不是立竿见影，但可能是灾难性的。分析句子结构可知，空处可使用形容词global（全球的）在句中作定语修饰名词warming，此处是专有名词global warming，意为“全球变暖”。故填global。
Part 2 课文语法填空
Some people argue that we should stop wasting time and money exploring space. Instead, we should feed the world's poor and find immediate solutions 1 other problems, such as pollution and fatal diseases. However, others feel this is a shallow view which fails to realise now exploring space helps us.
Firstly, 2 (explore) space has already made a difference in the fight against world hunger. It has directly resulted in the many satellites that now orbit Earth. A number of the satellites record data on land and weather patterns. Then the data is transmitted to scientists on Earth. After careful 3 ( analyse), the scientists can provide useful recommendations and advice for farmers. Secondly, space exploration has already promoted technological improvements that benefit us all. High-end products around the world 4 (make) to a higher standard now because of advanced technology which was first created 5 (meet) the requirements for space exploration. Today, space technologies are 6 (wide) used in all kinds of industries, and everyday products such as GPS, memory foam pillows, and smartphone cameras are changing our lives.
Finally, sending astronauts into space has helped people to think about the world's problems and even to find ways to solve 7 (they) In order to provide for such a rapidly increasing population, scientists are trying 8 (find) other planets 9 ()could one day be our new home. The greatest attention at present is on Mars because it is closer to Earth. In 10 future humans may live on both planets.
In closing, exploring space provides the world with many different benefits.
【答案】
to 2.exploring 3. analysis 4.are made 5.to meet 6.widely 7. them. 8.to find 9. that/which 10.the
阅读理解
A
For any astronaut hoping to survive on the surface of the moon, growing crops will be essential. Now, scientists have taken “one small step” towards growing plants on the lunar surface, after showing it’s possible to grow thale cress, a small flowering plant, in lunar soil.
The findings raise hopes that plants could be grown on the moon during future space missions, and even enable mankind to set up a lunar settlement. “For future, longer space missions, we may use the moon as a launching platform,” explained Professor Rob Ferl. “It makes sense that we would want to use the soil that’s already there to grow plants.” Until now, scientists have not grown plants in the soil. “So, what happens when you grow plants in lunar soil What would plants do in a lunar greenhouse Could we have lunar farmers ” Professor Ferl questioned.
To answer these questions, researchers from Florida set out to plant thale cress seeds in lunar soil, add water, nutrients, and light, and see what happened. The researchers chose to use thale cress because its genetic code has already been fully mapped. For comparison, the researchers also planted seeds in a range of soils, including those that simulate Martian soils. To their delight, the researchers found that nearly all of the seeds grew. However, they did observe differences between the plants grown in the lunar soil and those grown in the control soils. Some of the plants grown in the lunar soils were smaller, while others grew more slowly or were more varied in size.
Growing plants in lunar soils may also change the moon itself, according to Dr. Stephen Elardo. “The moon is a very, very dry place”, he said. How will minerals in the lunar soil respond to having a plant grown in them, with the added water and nutrients Will adding water make the minerals friendlier to plants The researchers hope to answer these questions in follow-up studies.
13．What’s the second paragraph mainly about
A．The significance of the findings. B．The plants grown in the lunar soil.
C．The missions of future space exploration. D．The hope for setting up a lunar settlement.
14．Why did researchers use thale cress in the experiment
A．Its genes are suitable for lunar soil. B．It has a long evolutionary history.
C．It has been tested with lunar soil before. D．People have a good knowledge of its genes.
15．What did researchers find about the plants grown in lunar soil
A．They absorbed few nutrients. B．They didn’t grow well enough.
C．They grew slowly in the dark. D．They needed more water to grow bigger.
16．What is the best title for the text
A．Preparing for Farming on the Moon
B．Conducting a Study on Lunar Soil
C．Growing Plants in Lunar Soil
D．Making Lunar soil friendlier to plants
【答案】13．A 14．D 15．B 16．C
【导语】本文是一篇说明文。本文主要是说研究人员证明了在月球土壤中种植小型开花植物赤子姜是可能的以及这一研究结果的重要意义。
13．主旨大意题。根据第二段的内容“The findings raise hopes that plants could be grown on the moon during future space missions, and even enable mankind to set up a lunar settlement. “For future, longer space missions, we may use the moon as a launching platform,” explained Professor Rob Ferl. “It makes sense that we would want to use the soil that’s already there to grow plants.” Until now, scientists have not grown plants in the soil. “So, what happens when you grow plants in lunar soil What would plants do in a lunar greenhouse Could we have lunar farmers ” Professor Ferl questioned.（这一发现为未来的太空任务在月球上种植植物带来了希望，甚至使人类能够在月球上建立定居点。“对于未来更长时间的太空任务，我们可能会把月球作为发射平台，”罗伯·费尔教授解释说。“我们想要利用已经存在的土壤种植植物是有道理的。”到目前为止，科学家还没有在土壤中种植植物。“那么，当你在月球土壤中种植植物时会发生什么 ” 植物在月球温室里会做什么 我们能有月球农民吗 ” 费尔教授问）”可知，第二段主要告诉我们这一研究结果的意义：为未来的太空任务在月球上种植植物带来了希望，甚至使人类能够在月球上建立定居点。故选A项。
14．细节理解题。根据第三段的第二句话“The researchers chose to use thale cress because its genetic code has already been fully mapped.（研究人员选择使用赤子姜是因为它的遗传密码已经被完全绘制出来了）”可知，研究人员选择用赤子姜做实验是因为研究人员完全了解它的基因。故选D项。
15．细节理解题。根据第三段的句子“For comparison, the researchers also planted seeds in a range of soils, including those that simulate Martian soils. To their delight, the researchers found that nearly all of the seeds grew. However, they did observe differences between the plants grown in the lunar soil and those grown in the control soils. Some of the plants grown in the lunar soils were smaller, while others grew more slowly or were more varied in size.（为了进行比较，研究人员还在一系列土壤中播种，包括那些模拟火星土壤的土壤。令他们高兴的是，研究人员发现几乎所有的种子都生长了。然而，他们确实观察到在月球土壤中生长的植物和在对照土壤中生长的植物之间的差异。在月球土壤中生长的一些植物较小，而另一些植物生长较慢或大小变化较大）”可知，在月球土壤中种植的植物生长的较小、较慢或大小变化较大，生长的不好。故选B项。
16．主旨大意题。本文主要是说研究人员证明了在月球土壤中种植小型开花植物赤子姜是可能的以及这一研究结果的重要意义。所以用C项“Growing Plants in Lunar Soil”（在月球土壤中种植植物）作为本文的题目，与文章主题相符合。故选C项。
B
Set to launch on October 16, the Lucy spacecraft is designed to study Jupiter’s Trojan asteroids (小行星). These asteroids are small bodies leftover from the formation of our solar system’s large planets. They share an orbit with Jupiter as the planet goes around the sun. The mission’s aim is to gather new information about the solar system’s formation 4.5 billion years ago.
Lucy will observe eight asteroids over 12 years. One of the eight asteroids orbits in what is known as the Asteroid Belt , an area between Mars and Jupiter. Most known asteroids orbit within this area. The spacecraft will also observe seven Trojan asteroids. Scientists consider the Trojan asteroids to be the ancient remains of the formation of the solar system. They have stayed captured in Jupiter’s orbit for billions of years. The Trojans circle the sun in two groups. One group leads Jupiter in its orbital path, while the other follows behind it. Lucy will be the first spacecraft to visit these asteroids.
The spacecraft was named Lucy after the ancient fossil discovered in Ethiopia in 1974. Lucy was one of the most famous scientific finds of the 20th century. The collection of skeletal bones gave scientists a better understanding of the evolution of humans. Cathy Olkin, the deputy lead investigator for the Lucy mission, compared the NASA spacecraft to the Lucy fossil. “Just like the Lucy fossil transformed our understanding of human evolution, the Lucy mission will transform our understanding of solar system evolution.” she said.
The spacecraft is equipped with several imaging instruments designed to capture information about the composition of materials on the surface of asteroids. Other equipment will be used to record asteroid surface temperatures and measure the size of the objects the space-craft observes. Lucy will depend on solar power to operate. NASA says the mission expects to set a record because Lucy will travel farther from the sun than any past solar powered spacecraft.
Lori Glaze is the director of NASA’s planetary science division. She said “Whatever Lucy finds will give us vital clues about the formation of our solar system.”
17．What is the mission of the Lucy spacecraft
A．To explore the surface of Jupiter.
B．To collect soil samples from Mars.
C．To find out the origin of solar system.
D．To search for life on Trojan asteroids.
18．What can we learn about Trojan asteroids from paragraph 2
A．They all orbit in the Asteroid Belt.
B．They were discovered 12 years ago.
C．They share the same orbit with Jupiter.
D．They are the oldest planets in solar system.
19．What is paragraph 3 mainly about
A．The inspiration for the name of Lucy.
B．The significance of the Lucy fossil.
C．The introduction to the Lucy mission.
D．Cathy Olkin’s study on human evolution.
20．What do we know about the Lucy spacecraft
A．It has a large space inside.
B．It is powered by sustainable energy.
C．It moves faster with its lower weight.
D．It gets closer to the sun than other spacecraft.
【答案】17．C 18．C 19．A 20．B
【导语】本文是一篇新闻报道。文章主要报道了“露西”号宇宙飞船将于10月16日发射，旨在研究木星的特洛伊小行星。
17．细节理解题。根据文章第一段“The mission’s aim is to gather new information about the solar system’s formation 4.5billion years ago.(该任务的目的是收集关于45亿年前太阳系形成的新信息)”可知，Lucy太空飞船此次的任务是收集关于45亿年前太阳系形成的新信息。故选C。
18．推理判断题。根据文章第二段“The spacecraft will also observe seven Trojan asteroids. Scientists consider the Trojan asteroids to be the ancient remains of the formation of the solar system. They have stayed captured in Jupiter’s orbit for billions of years. The Trojans circle the sun in1wo groups. One group leads Jupiter in its orbital path, while the other follows behind it.(该航天器还将观测7颗特洛伊小行星。科学家们认为特洛伊小行星是太阳系形成的古代遗迹。它们在木星轨道上被捕获了数十亿年。特洛伊人分成两组绕太阳转。一组在木星的轨道上引领木星，而另一组紧随其后)”可推断，特洛伊小行星和木星拥有共同的轨道。故选C。
19．主旨大意题。根据文章第三段“The spacecraft was named Lucy after the ancient fossil discovered in Ethiopia in 1974.Lucy was one of the most famous scientific finds of the 20th century. The collection of skeletal bones gave scientists a better understanding of the evolution of humans. Cathy Olkin, the deputy lead investigator for the Lucy mission, compared the NASA spacecraft to the Lucy fossil. “Just like the Lucy fossil transformed our understanding of human evolution, the Lucy mission will transform our understanding of solar system evolution.” she said. (这艘宇宙飞船以1974年在埃塞俄比亚发现的古化石“Lucy”命名。Lucy是20世纪最著名的科学发现之一。骨骼的收集使科学家们更好地了解了人类的进化。“Lucy”号任务的副首席研究员Cathy Olkin将美国宇航局的宇宙飞船与“Lucy”号化石进行了比较。“就像Lucy化石改变了我们对人类进化的理解一样，Lucy任务将改变我们对太阳系进化的理解。”她说。)”可知，第三段主要解释了Lucy号宇宙飞船名字的由来——以1974年在埃塞俄比亚发现的古化石“Lucy”命名的。故选A。
20．细节理解题。根据文章第四段“Lucy will depend on solar power to operate.(Lucy将依靠太阳能来运行。)”可知，Lucy号将依靠太阳能来运行，也就是说Lucy号是由可持续能源驱动的。故选B。
C
The 17 Sustainable (可持续) Development Gosls of the United Nations give us opportunities of our time-opportunities to terminate extreme poverty, to make sure that everyone can get food and clean water. In fact, there are many space services that can help us pursue the Sustainable Development Goals.
Communication satellites make it possible to make a phone call and have Internet service on Earth. This is particularly important during times of disaster recovery, When Typhoon Haiyan struck the Philippines, the local communication networks needed to be repaired, and teams brought in communication tools that could connect with satellites. This was useful during the time of repair and recovery.
In space, we have a laboratory on the International Space Station. The vehicle and everything inside are in a form of free fall around the earth, and they don’t experience the effect of gravity. And because of this, we call it “microgravity (微重力)”. When astronauts are in the microgravity environment, their bodies react as if they’re aging rapidly. Their bones and muscles weaken, and the systems of their bodies change. As scientists study how to keep astronauts healthy in space, we can take the exercises and techniques we use for astronauts and transfer (转用) them to improve our health here.
Often, as we develop technology for astronauts and exploration for spacecrafts, we can also transfer those inventions to help people on the earth. Filtration (过滤) system is one of the examples. It is a tool that liquid is passed through in order to remove any materials that are not wanted. With the help of filtration system, drinking clean water became possible for astronauts in space. The system is now being used around the world.
Space is also a great source of inspiration, through education, research and astronomy (天文学). Now, countries around the world are working at advancing their own development by increasing their local knowledge of engineering, science and space.
21．What does the underlined word “terminate” in Paragraph 1 probably mean
A．Create. B．End. C．Help. D．Monitor.
22．What can be known about microgravity
A．It is a state of free fall. B．It widely exists on the earth.
C．It can be changed by people. D．It brings harm to astronauts.
23．Why does the author give the example of filtration system
A．To encourage the exploration of space. B．To promote the use of filtration system.
C．To show the transfer of space inventions. D．To inspire people to invent more tools.
24．What is the best title of the text
A．The Mystery of Outer Space Technologies.
B．Space Technologies We Can Use to Improve Life.
C．The Development of Advanced Space Technologies.
D．Sustainable Development of Science and Technology.
【答案】21．B 22．D 23．C 24．B
【导语】这是一篇议论文。文章主要论述了为了太空探索而发明的科学技术也能够为我们的生活带来便利这一观点并且用举例来论证。
21．词句猜测题。根据第一段首句“The 17 Sustainable (可持续) Development Gosls of the United Nations give us opportunities of our time-opportunities to terminate extreme poverty, to make sure that everyone can get food and clean water. (联合国的17项可持续发展目标为我们提供了时代机遇，来terminate极端贫困，确保每个人都能获得食物和清洁水的机遇。)”可知，联合国的17项可持续发展目标保证每个人都能够吃到食物、喝到干净的水，即是。由此可知，划线词应是“结束，终结”意思。故选B。
22．推理判断题。根据第三段中“When astronauts are in the microgravity environment, their bodies react as if they’re aging rapidly. Their bones and muscles weaken, and the systems of their bodies change. As scientists study how to keep astronauts healthy in space, we can take the exercises and techniques we use for astronauts and transfer (转用) them to improve our health here. (当宇航员处于微重力环境时，他们的身体反应就好像他们在迅速衰老。他们的骨骼和肌肉变弱，身体系统也发生了变化。当科学家们研究如何在太空中保持宇航员的健康时，我们可以把我们用于宇航员的锻炼和技术转移到这里来改善我们的健康。)”可知，科学家需要研究如何让宇航员在太空中保持健康。所以说，微重力环境对宇航员身体是有害的。故选D。
23．推理判断题。根据第四段中“Often, as we develop technology for astronauts and exploration for spacecrafts, we can also transfer those inventions to help people on the earth. Filtration (过滤) system is one of the examples. (通常，当我们为宇航员和宇宙飞船开发技术时，我们也可以将这些发明应用到帮助地球上的普通人身上。过滤系统就是其中一个例子。)”可知，我们能够把这些发明应用到地球上的普通人身上。这句话是第四段的主题句。接下来，把过滤系统作为例证来印证主题句，是为了展示太空发明的迁移运用。故选C。
24．主旨大意题。通读文章，尤其是首段末句“In fact, there are many space services that can help us pursue the Sustainable Development Goals. (事实上，有许多空间服务可以帮助我们实现可持续发展目标。)”可知，文章主要论述了为了太空探索而发明的科学技术也能够为我们的生活带来便利，B项“我们可以用来改善生活的太空技术”。故选B。Book 3 Unit 4 Space Exploration
Period 3 Reading For Writing
Ⅰ.单词认读关(先填后记诵)
基础词汇记其形
1. 地球，地球仪________________________ 2. 论证，争辩__________________________
3. 肤浅的，浅的________________________4. 模式，图案__________________________
5. 监视器，检测仪，监测，监控___________ 6. 资源，财力，物力_____________________
7. 有限的_____________________________
定期的，经常的______________________
9.系，绑，贴___________________________
10. 分析 n.___________________________
二、核心词汇记中变
__________adj．致命的；灾难性的(=_____________)→__________n．命中注定的事（尤指坏事）；命运的安排；命运
__________adv．经常；定期地→________adj.定期的；经常的；正常的→________adj.不规则的；无规律的→__________n.规章,规则,条例
_________ n.限度;限制 vt.限制;限定→_________adj.有限的→_________ adj.无限的→_____________adj.无限制的;无止境的
_____________ n．神秘事物；谜→_____________ adj.神秘的
_____________ n.和谐→_____________ adj.和谐的
_____________ adj.足够的;充足的(=_________=_________)→_____________ n.充足 __________adj.效率高的→_________ n.高效,效率
____________adj.熟练的,流畅的→_____________ n.流畅,流利
________vt.缺乏;不足n.缺乏;不足→________adj.缺乏的,不足的
__________ vt.分析,分解,解释→→__________n.分析→复数形式:__________n. [pl]
类似变法:_________(=________=__________=_________) vt.强调;加强语气;重读→__________ n.强调;加强语气;重读→复数形式:_________ n. [pl]
___________ n. 资料；数据→____________n. [pl]资料 ___________n. 媒介, 手段, 方法, 工具 adj. 中等的, 适中的→__________n. [pl]媒介
_____________ n. 宇宙；世界；领域→_____________adj. 全体的；广泛的, 普遍的→_____________ adv.
attach vt.系上;贴上;使依附;使依恋→_____________ n. 附着, 附属; 喜欢…，系在…上__________________
___________vt.描写,叙述→_____________n.描述,形容
___________v. 讲(故事),叙述→____________n.叙述,讲述→__________n. 叙述者
阅读词汇识其义
Ⅱ.语块记诵关(先填后记诵)
1. 导致；造成 ___________________
2. 所以；结果（是） ___________________
3. 提供生活所需 ___________________
4. 最后 ___________________
5. 用完；耗尽 ___________________
6. 浪费……做…… ___________________
7. 许多 ___________________
8. 努力做某事. ___________________
9. 目前 ___________________
Present an argument about space exploration
① Read the argumentative essay about space exploration and answer the questions.
1. Why are some people against space exploration
__________________________________________________________________________________________
What has space exploration done for food production
__________________________________________________________________________________________
What did the pictures of Earth from space make people realise
__________________________________________________________________________________________
How does space exploration benefit the products that people use nowadays
__________________________________________________________________________________________
How to write an argumentative essay
Para 1: 开门见山，提出主题(1－2句)
Useful Expressions and sentences
. We had a heated discussion about/on+话题.
我们就……进行了热烈的讨论。
2. Recently, …has brought about a heated discussion.
最近，……引起了热烈的讨论。
3. There is a widespread concern over the issue that+句子.
……问题引起了广泛的关注。
人们对此有不同的看法
4. People have taken different attitudes towards+话题.
5. People hold different opinions on this problem.
6. People take different views on this matter.
7. Opinions vary from person to person.
8. Opinions are divided on the question.
Para 2: 表达不同的观点及其理由
模板
正方观点
A majority of people approve of the opinion that (正方观点). From their point of view, there are some factors contributing to this attitude, which are as follows：in the first place, (原因一) ．Furthermore, (原因二) ．
反方观点
On the contrary, some people differ in their opinions on this matter. They hold the view that (反方观点) ．On the one hand, (原因一) ．On the other hand, (原因二) ．
Useful Expressions and sentences
1. Some/Most/Few of them hold the opinion that...
他们中的一些/大多数/少数人认为。
2. Some/Most/Few of them are in favor of/ for the idea that...
他们中的一些/大多数/少数人赞成……的观点。
3. People who are opposed to/ against the idea think that...
反对这个想法的人认为……。
4. Some people believe that...Others argue that...
有些人认为…… 另一些人认为……
5. However, the flip side of the coin is …….
然而；另一个相反的观点是……。
Para 3: 说明自己的观点
Useful Expressions and sentences
1. As far as I am concerned,... ……就我个人而言
2. From my perspective,... ……在我看来
3. From my point of view,... ……在我看来
4. In my opinion,... ……依我所见
5. It’s my opinion that+句子. 我的看法是……
6. Taking all factors into consideration, we may come to the conclusion that...
把所有的因素加以考虑，我们可以得出这样的结论……。
7. In a word, only through...can we have a bright future.
总之，只有通过……我们才能有一个光明的未来。
Part 1 核心词汇
1.【词汇拓展】_________vt.系；绑；贴；(使)附属；(使)隶属→ _________n．附件；喜爱；连接
【常用搭配】
be attached to sb/sth 依恋；附属于；爱慕某人(某物) attach sth to sth 把……附在……之上 attach oneself to sb 参加；和……在一起 attach to sb/sth 与……有联系 attach importance to 重视
【即学即练】
1.一把金属钥匙系在绳子上。
A metal key______________________ the string.
2.我认为这项研究十分重要。
I ___________________________________this research.
3.这些学校曾一度归教会主管。
At one time the schools________________________the church.
2.【词汇拓展】_________vt.&vi.论证;争辩;争论→ _________argument n.争论;争辩
【常用搭配】
argue with sb.(about/over/on sth.) (就某事)与某人争论 argue for/against sth. 据理赞成/反对某事 argue that ... 主张……;认为…… argue sb. into doing sth. 说服某人做某事 argue sb. out of doing sth. 说服某人不做某事
【即学即练】
1.Father argued__________ an increase in our pocket money.
2.As far as I know, they argue___________the right to vote.
3.We tried many ways to argue him _________following our advice, but in vain.
4.他们之间就解决这个问题的办法展开讨论。
They___________________________the way of dealing with the problem.
5.面对这样的争论,不同的人可能会有不同的意见。
__________________________，different individuals may come to different opinions.
3.result in导致；造成
【常用搭配】
result from 由……产生 as a result of 由于……的原因 as a result 结果;因此;所以，后面接表示结果的句子 as a result of ... 作为……的结果, 其后面的部分表示原因，of后面接名词或动名词。 without result 毫无结果
【联想拓展】
“导致”的意思，其同义词有cause(引起)，bring about(引起；导致；致使)；lead to(导致)；contribute to(有助于；向……投稿)等。
【即学即练】
1.工作压力导致了他精神上的疾病。现在他的健康处于危险中。
Work stress_______________his mental illness. His health is at risk now.
2.由于吃得太多,他肚子疼。
His stomachache_____________his eating too much.
3.人们现在比过去享有更好的医疗服务，因此寿命更长了。
People have better access to health care than they used to, and _____________, they live longer.
4.由于这些问题,人口由1841年的820万减少到1851年的660万。
__________________ these problems, the population fell from 8. 2 million in 1841 to 6.6 million in 1851.
5.他是因为过度劳累而得了癌症。
His cancer ________________________ the overfull tiredness.
→The overfull tiredness _________________ his cancer.
run out 用完;耗尽
【联想拓展】
run out用完；耗尽 run across 偶然遇见(或看到) run at 攻击 run after 追赶；追求 run for 竞选 run into 遇到；撞上 run out of 用完某物
【知识拓展】
辨析run out, run out of, give out, use up run out“…用完了”,是不及物动词短语，其主语通常为时间、食物、金钱等名词 run out of “用完了”,是及物动词短语，表示主动意义，主语一般是人 give out “用尽;精疲力竭”，为不及物动词短语 use up “用完;消耗尽”,为及物动词短语
【即学即练】
1.到交通通畅的时候,我们将已经用完汽油了。
By the time the traffic clears, we will have ____________ gas.
2.她已经用完了钱,并且她的耐心也快耗尽了。
She has _____________ her money and her patience is also
3.跑了那么长一段距离后,他的体力耗尽了。
His strength _____________ after he ran that long distance.
4.我的钱用完了,所以我必须回家。
My money has been _______________，so I have to return home.
globe n.地球；世界；地球仪→_________ adj.全球的，全世界的；全面的，整体的→_________ adv. 全球地；全局地；世界上
【即学即练】
Three large _________(globe) stand on the floor. 地板上立着三个大地球仪。
It is believed that greenhouse gases are the main causes of _________(globe) warming. 一般认为温室效应气体是导致全球变暖的主因。
Today, as urban population explodes __________(globe), cities become more crowded. 今天，随着全球城市人口激增，城市变得更加拥挤。
regularly adv. 经常；定期地→__________ adj. 定期的；有规律的→__________ adj.不规则的；不定期的→regulate v. 规定→____________ n. 规章；规定
on a regular basis = regularly定期地
【即学即练】
The equipment is checked __________________. 设备定期进行检查。
Exercising ____________(regular) will pay dividends in the end. 经常运动最终会对身体大有好处的。
All the passengers, according to the new ____________(regulate), are to be inspected before boarding the subway.根据新规定，所有乘客在上地铁前都要接受检查。
limited adj. 有限的→_____________ n. 限制；局限→_____________ adj.无限的
【即学即练】
①My life is ____________(limit),but learning is ____________(limit).我的生命是有限的，但学习是无限的。
②The EU has set strict _____________(limit) on pollution levels. 欧盟对污染程度订下了严格的限制。
Part 2 核心句型
Part 1 动词的形式变化和词形转换
1．Tony (purchase) a plane ticket for me in advance online before I set off for the airport.
2．Mary decided to find a way to end the (argue) with her husband.
3．The (analyze) of a problem is the starting point for its solution.
4．Even if your time is (limit), do take exercise regularly to (strength) your body.
5．In the future, our smart home (monitor) our health for us every day.
6．I feel there is something (lack) in my life.
7．Fortunately, she was admitted to a local hospital (attach) to a key university.
8．We meet (regular), once a month, to exchange ideas about the newly-read books.
9．The hotel has many special (facility) for welcoming disabled people.
10．The effects of (globe)warming, while not immediate, are potentially catastrophic(灾难性的).
Part 2 课文语法填空
Some people argue that we should stop wasting time and money exploring space. Instead, we should feed the world's poor and find immediate solutions 1 other problems, such as pollution and fatal diseases. However, others feel this is a shallow view which fails to realise now exploring space helps us.
Firstly, 2 (explore) space has already made a difference in the fight against world hunger. It has directly resulted in the many satellites that now orbit Earth. A number of the satellites record data on land and weather patterns. Then the data is transmitted to scientists on Earth. After careful 3 ( analyse), the scientists can provide useful recommendations and advice for farmers. Secondly, space exploration has already promoted technological improvements that benefit us all. High-end products around the world 4 (make) to a higher standard now because of advanced technology which was first created 5 (meet) the requirements for space exploration. Today, space technologies are 6 (wide) used in all kinds of industries, and everyday products such as GPS, memory foam pillows, and smartphone cameras are changing our lives.
Finally, sending astronauts into space has helped people to think about the world's problems and even to find ways to solve 7 (they) In order to provide for such a rapidly increasing population, scientists are trying 8 (find) other planets 9 ()could one day be our new home. The greatest attention at present is on Mars because it is closer to Earth. In 10 future humans may live on both planets.
In closing, exploring space provides the world with many different benefits.
阅读理解
A
For any astronaut hoping to survive on the surface of the moon, growing crops will be essential. Now, scientists have taken “one small step” towards growing plants on the lunar surface, after showing it’s possible to grow thale cress, a small flowering plant, in lunar soil.
The findings raise hopes that plants could be grown on the moon during future space missions, and even enable mankind to set up a lunar settlement. “For future, longer space missions, we may use the moon as a launching platform,” explained Professor Rob Ferl. “It makes sense that we would want to use the soil that’s already there to grow plants.” Until now, scientists have not grown plants in the soil. “So, what happens when you grow plants in lunar soil What would plants do in a lunar greenhouse Could we have lunar farmers ” Professor Ferl questioned.
To answer these questions, researchers from Florida set out to plant thale cress seeds in lunar soil, add water, nutrients, and light, and see what happened. The researchers chose to use thale cress because its genetic code has already been fully mapped. For comparison, the researchers also planted seeds in a range of soils, including those that simulate Martian soils. To their delight, the researchers found that nearly all of the seeds grew. However, they did observe differences between the plants grown in the lunar soil and those grown in the control soils. Some of the plants grown in the lunar soils were smaller, while others grew more slowly or were more varied in size.
Growing plants in lunar soils may also change the moon itself, according to Dr. Stephen Elardo. “The moon is a very, very dry place”, he said. How will minerals in the lunar soil respond to having a plant grown in them, with the added water and nutrients Will adding water make the minerals friendlier to plants The researchers hope to answer these questions in follow-up studies.
13．What’s the second paragraph mainly about
A．The significance of the findings. B．The plants grown in the lunar soil.
C．The missions of future space exploration. D．The hope for setting up a lunar settlement.
14．Why did researchers use thale cress in the experiment
A．Its genes are suitable for lunar soil. B．It has a long evolutionary history.
C．It has been tested with lunar soil before. D．People have a good knowledge of its genes.
15．What did researchers find about the plants grown in lunar soil
A．They absorbed few nutrients. B．They didn’t grow well enough.
C．They grew slowly in the dark. D．They needed more water to grow bigger.
16．What is the best title for the text
A．Preparing for Farming on the Moon
B．Conducting a Study on Lunar Soil
C．Growing Plants in Lunar Soil
D．Making Lunar soil friendlier to plants
B
Set to launch on October 16, the Lucy spacecraft is designed to study Jupiter’s Trojan asteroids (小行星). These asteroids are small bodies leftover from the formation of our solar system’s large planets. They share an orbit with Jupiter as the planet goes around the sun. The mission’s aim is to gather new information about the solar system’s formation 4.5 billion years ago.
Lucy will observe eight asteroids over 12 years. One of the eight asteroids orbits in what is known as the Asteroid Belt , an area between Mars and Jupiter. Most known asteroids orbit within this area. The spacecraft will also observe seven Trojan asteroids. Scientists consider the Trojan asteroids to be the ancient remains of the formation of the solar system. They have stayed captured in Jupiter’s orbit for billions of years. The Trojans circle the sun in two groups. One group leads Jupiter in its orbital path, while the other follows behind it. Lucy will be the first spacecraft to visit these asteroids.
The spacecraft was named Lucy after the ancient fossil discovered in Ethiopia in 1974. Lucy was one of the most famous scientific finds of the 20th century. The collection of skeletal bones gave scientists a better understanding of the evolution of humans. Cathy Olkin, the deputy lead investigator for the Lucy mission, compared the NASA spacecraft to the Lucy fossil. “Just like the Lucy fossil transformed our understanding of human evolution, the Lucy mission will transform our understanding of solar system evolution.” she said.
The spacecraft is equipped with several imaging instruments designed to capture information about the composition of materials on the surface of asteroids. Other equipment will be used to record asteroid surface temperatures and measure the size of the objects the space-craft observes. Lucy will depend on solar power to operate. NASA says the mission expects to set a record because Lucy will travel farther from the sun than any past solar powered spacecraft.
Lori Glaze is the director of NASA’s planetary science division. She said “Whatever Lucy finds will give us vital clues about the formation of our solar system.”
17．What is the mission of the Lucy spacecraft
A．To explore the surface of Jupiter.
B．To collect soil samples from Mars.
C．To find out the origin of solar system.
D．To search for life on Trojan asteroids.
18．What can we learn about Trojan asteroids from paragraph 2
A．They all orbit in the Asteroid Belt.
B．They were discovered 12 years ago.
C．They share the same orbit with Jupiter.
D．They are the oldest planets in solar system.
19．What is paragraph 3 mainly about
A．The inspiration for the name of Lucy.
B．The significance of the Lucy fossil.
C．The introduction to the Lucy mission.
D．Cathy Olkin’s study on human evolution.
20．What do we know about the Lucy spacecraft
A．It has a large space inside.
B．It is powered by sustainable energy.
C．It moves faster with its lower weight.
D．It gets closer to the sun than other spacecraft.
C
The 17 Sustainable (可持续) Development Gosls of the United Nations give us opportunities of our time-opportunities to terminate extreme poverty, to make sure that everyone can get food and clean water. In fact, there are many space services that can help us pursue the Sustainable Development Goals.
Communication satellites make it possible to make a phone call and have Internet service on Earth. This is particularly important during times of disaster recovery, When Typhoon Haiyan struck the Philippines, the local communication networks needed to be repaired, and teams brought in communication tools that could connect with satellites. This was useful during the time of repair and recovery.
In space, we have a laboratory on the International Space Station. The vehicle and everything inside are in a form of free fall around the earth, and they don’t experience the effect of gravity. And because of this, we call it “microgravity (微重力)”. When astronauts are in the microgravity environment, their bodies react as if they’re aging rapidly. Their bones and muscles weaken, and the systems of their bodies change. As scientists study how to keep astronauts healthy in space, we can take the exercises and techniques we use for astronauts and transfer (转用) them to improve our health here.
Often, as we develop technology for astronauts and exploration for spacecrafts, we can also transfer those inventions to help people on the earth. Filtration (过滤) system is one of the examples. It is a tool that liquid is passed through in order to remove any materials that are not wanted. With the help of filtration system, drinking clean water became possible for astronauts in space. The system is now being used around the world.
Space is also a great source of inspiration, through education, research and astronomy (天文学). Now, countries around the world are working at advancing their own development by increasing their local knowledge of engineering, science and space.
21．What does the underlined word “terminate” in Paragraph 1 probably mean
A．Create. B．End. C．Help. D．Monitor.
22．What can be known about microgravity
A．It is a state of free fall. B．It widely exists on the earth.
C．It can be changed by people. D．It brings harm to astronauts.
23．Why does the author give the example of filtration system
A．To encourage the exploration of space. B．To promote the use of filtration system.
C．To show the transfer of space inventions. D．To inspire people to invent more tools.
24．What is the best title of the text
A．The Mystery of Outer Space Technologies.
B．Space Technologies We Can Use to Improve Life.
C．The Development of Advanced Space Technologies.
D．Sustainable Development of Science and Technology.
