Unit 4 Space Exploration Period 4 Reading for Writing 课件+学案

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名称 Unit 4 Space Exploration Period 4 Reading for Writing 课件+学案
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更新时间 2022-06-29 09:43:24

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中小学教育资源及组卷应用平台
新人教版(2019)单元课时学案
学生姓名 班级 序号
课题内容 Unit 4 Space Exploration Period 4 Reading for Writing
教材分析 The theme of this part is "putting forward an argument about space exploration". This part is about the argument of introducing the different benefits of exploring space. In the first paragraph of the text, the author puts forward the theme of the article - the benefits of exploring space. In paragraphs 2 to 4, the author puts forward three advantages of sounding exploration and specific examples. In paragraph 5, the author concludes that the exploration of space has brought many different benefits to the world. After reading the argumentative, students will understand the main points of the article and find out the topic sentences of each paragraph. Master the writing style and structure of articles, and be able to write an article on space exploration.
学习目标与核心素养 1.Knowledge objectives: ①Master the usage of key words and phrases. ②Read quickly to understand the main idea and central idea of the text. ③Master the writing style and structure of the article, and read carefully to obtain detailed information. ④Learn the elements of Argumentation: topic, viewpoint, argument, evidence, and understand the characteristics or structure of argumentation. 2.Skill objectives: ①Be able to express views on space exploration. ②Be able to write an article on space exploration. ④Learn to cooperate with classmates and correct the problems in others' articles. 3.Thinking quality objectives: Cultivate students' logical thinking ability, summarizing and summarizing ability and writing ability.
学习重点 ① Able to express views on space exploration. ②And can write an article about space exploration. ③master the writing style and structure of the article.
学习难点 ①Able to express views on space exploration. ②And can write an article about space exploration.
探究点
探究点一:根据词义写出正确的单词及短语
1.___________n.设施;设备
2.___________adj.浅的;肤浅的;浅薄的
3.___________n.图案;模式;方式
4.___________n.监视器;监控器;显示器vt.监视;检查
5.___________n.泡沫橡胶;海绵橡胶;泡沫
6.___________vt.&vi.论证;争辩;争论
7.___________所以;结果(是)
8.___________n.资源;财力;物力
9.___________adj. 有限的
10.___________导致;造成
11.___________adv.经常;定期地
12.___________vt. 系;绑;贴; 与......有关联;认为有重要性
13.___________提供生活所需......;供养;为......做准备
14.___________用完;耗尽
探究点二:Group discussion.What do you think are the advantages and disadvantages of space exploration
探究点三:Writing elements include facts, arguments or opinions. Observe the following sentences and tell which of the writing elements the sentences belong to
①The Eiffel Tower is located in Paris, France.
②Exploring space provides the world with many different benefits.
③We should be grateful for more rain.
④Reading to babies is the best predictor of academic success.
⑤Countries around the globe are spending billions of dollars and lots of time on various space missions, whether to Mars or other planets much further away.
⑥I like chocolate chip cookies.
探究点四:Answer the following questions.
1. Which of the following writing elements does this passage belong to
A. Facts B. Arguments C. Opinions
2. The author proposes that__________ opinion
A.Similar opinions B.Opposite/opinions
3. What is the author's comment
A.Stop wasting time and money exploring space
B. A shallow view which fails to realise how exploring space helps us.
4.What is the author's comment
A. Stop wasting time and money exploring space
B. A shallow view which fails to realise how exploring space helps us.
探究点五:Read the text and fill in the blanks.
How many parts can the text be divided into What is the main idea of each part
Part1 (Para. __ ) ____________________________________________________
Part2 (Paras. ___ ) __________________________________________________
Part3 ( Para.___ ) ___________________________________________________
探究点六:Read the text and fill in the blanks.
What is the main idea of each paragraph
Para. __ ___________________________________________________________
Para. __ ___________________________________________________________
Para. __ ___________________________________________________________
Para. __ ___________________________________________________________
Para.__ ___________________________________________________________
探究点七:Judge whether the following sentences are correct. (T/F)
1.Some people think that we should spend time and money feeding the world's poor and finding immediate solutions to other problems instead of wasting them on space exploration.(  )
2.There are lots of satellites orbiting Earth which can help fight against world hunger.(  )
3.Space exploration has already promoted technological improvements that benefit only those who have been into space.(  )
4.In order to provide for such a rapidly increasing population, scientists have found other planets,for example Mars, which can be our new home.(  )
探究点八:Read the argumentative essay about space exploration and answer the questions.
探究点九:完成教材第44页第1题。
探究点十:完成教材第45页第2题。
探究点十一:完成教材第45页第3题。
探究点十二:完成教材第45页第4题。
[知识点]
单词:Words and expressions.
必备单词
A.单词
1.___________ n.设施;设备
2.___________ adj.浅的;肤浅的;浅薄的
3.___________ n.图案;模式;方式
4.___________n.监视器;监控器;显示器vt.监视;检查
5.___________ n.泡沫;橡胶;海绵橡胶;泡沫
6.___________ vt.&vi.论证;争辩;争论
7. __________ n.资源;财力;物力
8.___________adj.有限的
9.___________ adv.经常;定期地
10.__________ vt.系;绑;贴; ....有关联;认为有重要性
B.短语
1.___________所以;结果(是)
2.___________导致;造成
3.___________提供生活所....供养;.为...做准备
4.___________用完;耗尽
Language points.
知识点1
1.Some people argue that we should stop wasting time and money exploring space.一部分人认为,我们应该停止浪费时间和金钱去探索太空。
argue vt.&vi.论证;争辩;争论( argument n.争论;争吵;论点)
They're always arguing with each other about money.他们总是为钱吵嘴。
She got into an argument with the teacher.她和老师争论了起来。
语块积累
argue with sb. about/over sth.与某人争论某事
argue for为....而争辩
argue against为反对,而争辩;不赞成
win/lose an argument 争吵/争论赢了/输了
语法填空
Tom has been arguing _____ his brother about whether they should hire more people to work for them.
知识点2
2.As a result, space-based science has helped farming in its efforts to grow enough food to feed Earth's increasing population.所以,基于太空的科学帮助农业努力种植足够的粮食来养活地球上不断增长的人口。
“to grow enough food”是宾语补足语;“to feed Earth's increasing population”是目的状语;“in its efforts”是介词短语作状语。
as a result所以;结果(是)
词语辨析:as a result与as a result of
(1)as a result“所以;结果(是)”, 单独使用,一般放在句首,后面常加逗号。
(2)as a result of“......结果,由于”, 后接名词、代词或动名词作宾语。
He made a big mistake.As a result,he lost his job.他犯了个大错,结果丢了工作。
语法填空
____ a result of the pilots strike, all fights had to be cancelled.
知识点3
3. Seeing pictures of our Planet as an island in a black sea made realise people that our planet's resources are are limited.看着我们星球的照片,犹如黑色汪洋大海中的一个小岛,人们意识到地球的资原是有限的。
(1) resource n.资源;财力;物力(常用复数)
We must make the most use of the available financial resources.我们必须充分利用现有财力。
语块积累
natural/human resources自然/人力资源
abundant/rich/limited resources充足的/丰富的/有限的资源
exploit/waste resources开发/浪费资源
单句语法填空
①Some families don't have the _________ (resource) to feed themselves adequately.
limited adj. 有限的;limit n. & v. 限制;限度
We are doing our best with the limited resources available.
我们利用可获得的有限资源,尽最大的努力。
The EU has set strict limits on levels of pollution.
欧盟对污染程度作了严格的限定。
Families are limited to four free tickets each.每户限发四张免费票。
语块积累
limited time/space 有限的时间/空间 limited liability company有限责任公司
a limit to...对......的限制 a time speed/age/limit时间/速度/年龄限制
单句语法填空
I didn't buy that expensive book, for the amount of money we had was _______ (limit).
知识点4
4. Some people argue that we should stop wasting time and money exploring space.
一部分人认为,我们应该停止浪费时间和金钱去探索太空。
argue vt.&vi.论证;争辩;争论( →argument n.争论;争吵;论点)
They're always arguing with each other about money.他们总是为钱吵嘴。
She got into an argument with the teacher.她和老师争论了起来。
语块积累
argue with sb. about sth.与某人争论某事
argue for为支持......而争辩
argue against为......而争辩;不赞成
argue sb. into/out of doing sth.说服某人做/不做某事
单句语法填空
①Tom has been arguing_____his brother about whether they should hire more people to work for them.
②Robert, who was a wildlife lover, argued________shooting creatures to make profits.
知识点5
5. However, others feel this is a shallow view...
然而,另一部分人觉得这是一种肤浅的观点......
shallow adj.肤浅的;浅的;shallowly adv.肤浅地;浅浅地; shallowness肤浅;浅薄
He is physically attractive, but shallow.
他外表吸引人,但是内心肤浅。
We can wade shallow rivers, but deeper ones we'll have to swim.
水浅的河我们可以蹚过去,水深的河就得游过去。
语块积累
sallow argument 一个肤浅的论点 a sallow person一个肤浅的人
语法填空
①A stream is smaller__________(shallow) and than a river.
②Thus, she loves her husband but nevertheless be dissatisfied with his______________(shallow).
知识点6
6.It has directly resulted in the many satellites that now orbit Earth.
如今环绕地球运行的众多卫星都直接归功于它(太空探索)。
result in 导致;造成
The flood resulted in a considerable reduction in production.
这次水灾造成了相当大的减产。
对比:
(1)result in 导致,造成(其后接结果)
(2)result from由......引起,在于(其后接原因)
Hard work results in success.努力工作才能成功。
单句语法填空
①To her sadness,the quarrel resulted ___ the ending of their marriage.
②The fire _________ (result) in damage to their property was caused by a careless smoker.
知识点7
7.They have also helped companies make better heart monitors and other machines that doctors regularly use.它们(太空技术)还帮助一些公司制造出更好的心脏监测仪以及医生经常使用的其他设备。
(1)monitor n.班长;监视器;显示屏 vt.监视;检查;监听
The details of today's flights are displayed on the monitor.
今天航班的详细情况都列在显示屏上。
Each student s progress is closely monitored.
每一位同学的进步都受到密切的关注。
语块积累
a computer monitor计算机的显示器 monitor a conversation监听谈话
monitor the situation closely密切关注局势 be carefully monitored受到仔细地监控
单句语法填空
①Heart rate__________(monitor) will let you know how hard you are working out.
②Both patients were being actively____________ (monitor) by the nurses.
(2) regularly adv.经常;定期地(→regular adj.定期的;经常的;正常的;平常的;固定的;有规律的)
Water the plant regularly, never letting the soil dry out.经常给植物浇水,别让土壤干透了。
Water the plants regularly to keep the soil moist.定时浇灌植物以保持土壤湿润。
My mother comes to see me on a regular basis.我妈妈定期来看我。
Regular exercise is recommended to keep good health.建议有规律的进行锻炼,这样就可以保持身体健康。
语块积累
work out/exercise regularly经常锻炼 on a regular basis定期地
regular breathing均匀的呼吸 a regular income固定的收入
单句语法填空
①If you want to keep fit, you can exercise_______(regular) in a gym.
②We update the data ____ regular basis.
知识点8
8. in order to provide for population.为了满足快速增长的人口需求......
provide for sb.提供生活所需......;供养;为......做准备
I could provide for my boy and his mom.
我可以好好供养我的儿子和妻子。
They want to be able to provide for their children and their future.
她们希望能抚养孩子并为将来做准备。
语块积累
provide for sth.为...做好准备
provide sb. with sth.把某物提供给某人
provide sth. for sb.为某人提供某物说明
语法填空
①My father provides ____ our family by working in an IT company.
②We are here to provide the public _____ a service.
知识点9
9. It is necessary to find a new home for people in space,as the resources on Earth will run out.由于地球上的资原将会耗尽,有必要在太空中为人类找一个新的家园。
run out用完;耗尽
语块积累
run across偶然碰见 run after追赶;追求 run away (from)逃走;逃避 run into撞上;偶然遇见;遇到
学法点拨
(1)run out是不及物动词短语,不用于被动语态;run out of表示“用完......耗尽......”,
是及物动词短语,可用于被动语态。
Her money has run out and she is also running out of patience.
她的钱已经用完了,她的耐心也在耗尽。
(2)“用完,用尽”的其他表达:use up及物动词短语;give out不及物动词短语。
The human race is using up Earth s resources.人类正在耗尽地球上的资源。
Let's go home,My strength has given out.咱们回家吧,我筋疲力尽了。
单句语法填空
①We must take measures quickly because time is running _____.
②He has run out ____ all the energy.
知识点10
10. While landing, they must attach themselves to something so as to prevent floating around.着陆时,他们必须把自己固定在某物上,以防止四处漂浮。
attach vt. 系;绑;贴; .与.....有关联;认为有重要性
I attach great importance to this research.
我认为这项研究十分重要。
As a student, he attaches great value to learning strategies.
作为一名学生,他非常重视学习策略。
语块积累
attach...to......把....固定在/附在......上 be attached to附属于;喜欢(to是介词)
语法填空
①Attach a recent photo ___ the application form.
②At first, we didn't feel we belong here, but now we are _________ (attach)to the land we live on.

一、根据提示填写单词
1.However , others feel this is a s________ view which fails to realise how discovering space helps us. (根据首字母单词拼写)
2.When I arrived in the USA, I found my English was very __________(有限的).(根据汉语提示单词拼写)
3.She got into an ________ (argue) with the teacher. (根据汉语提示单词拼写)
4.We meet ________ (有规律地;定期地) to discuss our progress.(根据汉语提示单词拼写)
5.China is not rich in natural ______ (资源) for such a large population.(根据汉语提示单词拼写)
6.To his disappointment,the detective only found a couple of old________ (显示屏)in the comer of the room. (根据汉语提示单词拼写)
7.These fish are found in ________ (浅的) waters around the coast. (根据汉语提示单词拼写)
8.We__________(粘贴)labels to things before we file them away.(根据汉语提示填空)
9.Do you like the__________(图案) (根据汉语提示填空)
10.The equipment is checked on a r________(频繁的,经常的) basis.(根据中英文提示填空)
二.用方框中所给的词组的适当形式填空。
1._________ just a few years ago, private companies are now generally much bigger and easier to do deals with.
2. Lack of good preparation __________ his bad performance in the interview.
3. Tom asked me how to __________ satisfactory items on Double 11 Shopping Carnival.
4. It's clear that the support from the local government _________ the success of the project.
5. I frequently change my plans and find that __________ a schedule is boring.
6. Have you ever given false information ___________ protect your privacy online
7. The Great Western Development __________ be a bridge between China and the rest world.
8. Scientists __________ in the treatment of heart disease so far.
9. That young girl is always__________ find a job in a big city and settle down.
10. We shouldn't _________ what he did___________.
三.阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
Have you ever wondered what happens to all of the old objects launched into space, such as rockets and satellites It's called space junk, and much of it is still out there now. One large piece of space junk, 1. _______ disused rocket, hit the dark side of the moon on March 4.The rocket's origin is not clear, but scientists know that it was massive- 2.______ (weigh) about 3 tons.Whatis3. ______ (significance) about this space junk crash is that it draws attention to some of the potential 4. ______ (danger) of space junk. First, the accumulation of space junk in Earth's orbit means that satellites and the International Space Station (ISS) are at risk. In 2016. tiny space debris (残骸),5. ________ measured smaller than a mill meter. caused a tiny chip in the ISS' window. Imagine the damage that a6. ______ (large) piece of debris could cause. The European Space Agency website states that objects“up to 1 cm in size could 7. ______ (able) an instrument or a critical flight system on a satellite while objects over 10cm“could shatter a satellite or spacecraft into pieces”. In addition to potential damage 8. ______ spacecraft and satellites. space junk also poses a threat to the Earth9.______ (it). Crashes can send debris into the atmosphere where it can remain for many decades. Some powerful collisions can even send large debris hurtling (猛冲) toward Earth's surface where it can affect the local environment. Leftover rocket debris can contain toxic materials that 10.______ (be) harmful to plants and animal life. Some people in Siberia have even reported serious health problems after rocket debris landed in their regions in 2012. a local doctor told the BBC.
1. Seth Shostak and Alexandra Barnett are_________.
A. Astronomers
B. Farmers
C. Singers
D. Drivers
2. What is the best title for Paragraph 2
A. Earth: The Only Planet with intelligent Life.
B. Our galaxy: The Milky Way.
C. The Age and Size of Earth.
D. Why Intelligent Life Might Exist.
3. Why was it hard to look for signs of intelligent life in the universe in the past
A. There were not any smaller planets.
B. The astronomers were not interested in them.
C. There were not any powerful telescopes.
D. The Milky Way didn't exist at that time.
4. Why haven't beings from space visited us yet according to Shostak
A. They're afraid of us.
B. It's a long way away.
C. They don't want to see us.
D. They don't know how to use radio signals.
四.书面表达
最近你班同学就“人类是否应该进行宇宙探索"这个问题进行了激烈的讨论。有人认为,探索宇宙不仅让人类更好地了解宇亩的发展,还可以用来指导农业生产,以及把一些探索太空的高新技术用于现实生活;也有一些人认为探索太空花掉了大量的人力物力;影响了人们的生活水平。请你根据以下情况写一篇报告并发表自己的观点。
注意:
1.写作内容应包括以上全部要点,可适当发挥,使上下文连贯;
2.词数80左右。
________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________试卷第1页,共3页
试卷第1页,共3页
参考答案:
探究点
探究点一:
答案:1.facility 2.shallow 3.pattern 4.monitor 5.foam 6.argue 7.as a result 8.resource 9.limited 10.result in
11.regularly 12.attach 13.provide for sb. 14.run out
探究点二:
答案:advantages:
①People understand the evolution of the universe and its various physical phenomena and processes.
②Understand the status and significance of human beings and earth creatures in the universe.
③Promoting scientific and technological progress and upgrading technology in many fields are closely related to space exploration.
disadvantages:
①The disadvantage is that space exploration requires a lot of manpower, money and material resources.
②Space exploration produces a lot of space garbage in space.
探究点三:
答案:
①express fact
②express argument
③express opinion
④express argument
⑤express fact
⑥express opinion
探究点四:
答案:1.C 2.B 3.B 4.B
探究点五:
答案:
1Different opinions about space exploration.
2-4 Benefits of space exploration.
5 Space exploration is beneficial and should be continued.
探究点六:
答案:
Para.1 Different opinions a bout space exploration.
Para. 2 Space exploration has already made a difference in the fight against world hunger.
Para.3 Space exploration has promoted technological improvements.
Para. 4 Space exploration has helped people to think about the world's .
problems and even to find ways to solve them.
Para.5Space exploration is beneficial and should be continued.
探究点七:
答案:1.T 2.T3.F4.F
[知识点]
单词:Words and expressions.
必备单词
A.单词
答案:1.facility 2.shallow 3.pattern 4.monitor 5.foam 6.argue 7. resource 8.limited 9.regularly 10.attach
B.短语
答案:1.as a result 2.result in 3.provide for sb. 4.run out
Language points.
知识点1
答案:with
知识点2
答案:As
知识点3
答案:resources;limited
知识点4
答案:with;against
知识点5
答案:shallower;shallowness
知识点6
答案:in;resulting
知识点7
答案:monitors;monitored
答案:regularly;on
知识点8
答案:for ;with
知识点9
答案:out;of
知识点11
答案:to;attached
同步练习
一、根据提示填写单词
1.shallow
[解析]
[详解]
考查形容词。句意:然而,其他人认为这是一个浅见,无法认识探索太空是如何帮助我们。根据句意可知空格处是形容词作定语,修饰名词view,结合首字母和句意填shallow。
2.limited
[解析]
[详解]
考查形容词词义辨析。句意:我发现我的英语是有限的。根据汉语意思提示可知,这里考查“有限的”对应的形容词,作表语。故答案为limited。
3.argument.
[解析]
[详解]
考查名词。句意:她和老师争论了起来。根据句子结构,句子缺宾语,设空处应填名词,空前为不定冠词an,设空处应用argue的名词的单数形式argument,意为“争论”。故填argument。
4.regularly
[解析]
[详解]
考查副词。句意:我们定期开会讨论我们的进展。根据汉语提示可知,此处应用副词regularly表示“有规律地;定期地”作状语。故填regularly。
5.resources
[解析]
[详解]
考查名词。句意:对于如此庞大的人口来说,中国的自然资源并不丰富。根据句意及汉语提示可知,此处使用名词resource,可数名词,常用复数形式,表示泛指。故填resources。
6.monitors
[解析]
[详解]
考查名词。句意:令他失望的是,侦探只在房间的角落里发现了几台旧显示屏。根据汉语提示可知,monitor显示屏,名词,符合题意;a couple of 后需接可数名词复数。故填monitors。
7.shallow
[解析]
[详解]
考查形容词。句意:这些鱼生活在海岸附近的浅水区。根据汉语提示可知,此处使用形容词shallow,作定语,修饰名词waters。故填shallow。
8.attach
[解析]
[详解]
考查动词。句意:我们在归档前给东西贴上标签。分析可知,表示事实情况用一般现在时,再结合句意以及汉语提示可知,attach…to…意为给……贴上……,故填attach。
9.pattern
[解析]
[详解]
考查名词。句意:你喜欢这个图案吗?句中用名词作宾语,根据定冠词the可知,用单数形式。故填pattern。
10.regular
[解析]
[详解]
考查形容词。句意:设备定期进行检查。根据汉语及首字母提示可知,此处应填形容词regular,作定语,修饰basis,故填regular。
二.用方框中所给的词组的适当形式填空。
[答案]
[小题1] Compared to
[小题2] resulted in
[小题3] hunt for
[小题4] is crucial to
[小题5] sticking to
[小题6] in an attempt to
[小题7] is bound to
[小题8] have made an important breakthrough
[小题9] longing to
[小题10] take for granted
[解析]
[小题1]
考查非谓语动词。句意:与几年前相比,现在的私营公司通常规模更大,交易更容易。分析句子可知,空格处应填入非谓语动词。Compared to置于句首,意为......相比”,可视为独立成分,在句中作状语。故填Compared to。
[小题2]
考查时态。句意:缺乏良好的准备导致他在面试中表现不佳。分析句子可知,空格处应填入谓语动词。根据句子已给成分,Lack of good preparation在句中作主语,his bad performance在句中作宾语,且构成因果关系。所以result in意为“导致、引起”复合句意。句子的时态为一般过去时。故填resulted in。
[小题3]
考查动词原形。句意:汤姆问我如何在双11购物狂欢节上寻找令人满意的商品。分析句子可知, how to do作宾语,空格处应填入动词原形。根据空格后的宾语"satisfactory items"可知,hunt for意为“寻找”复合句意。故填hunt for。
[小题4]
考查时态。句意:很明显,地方政府的支持对项目的成功至关重要。分析句子可知,空格处应填入动词短语。根据句意“地方政府的支持对项目的成功至关重要”,be crucial to意为对......至关重要”,符合句意,且句子时态为一般现在时,主语是"he support from the local government"表单数。故填is crucial to。
[小题5]
考查动名词。句意:我经常改变计划,发现坚持时间表很无聊。分析句子可知,空格处应填入动名词作从句主语。结合句意,stick to意为"坚持符合句意。故填sticking to。
三.阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
[导语]这是一篇说明文。文章主要介绍了一次太空垃圾撞击事件引起 了人们对太空垃圾潜在危险的关注。
[小题1]
考查冠词。句意: 一大片太空垃圾,一个未使用的火箭,在3月4日撞击了月球的黑暗面。分析句意可知,此处用不定冠词泛指“一个”未使用的火箭,又因为disused的发音以辅音开头,所以应该用a。故填a。
[小题2]
考查非谓语动词。句意:火箭的来源并不清楚,但科学家指导它体积巨大,重达3吨。分析句式结构可知,此处应该用非谓语动词作伴随状语,因为火箭和重达是主动关系,所以此处用提示词的现在分词形式。故填weighing.
[小题3]
考查形容词。句意:关于这个太空垃圾重要的是它引起人们去关注太空垃圾潜在的一些危险。分析句式结构可知,系动词后加形容词作表语,所以此处应该用形容词。故填significant。
[小题4]
考查名词的复数。句意:同上。分析句式结构可知,danger为可数名词, some of+可数名词复数,故填dangers。
[小题5]
考查定语从句。句意: 2016 年,细小的太空残骸,比一毫米更小,造成了国际空间站的窗户的缺口。分析句式结构可知,此处为定语从句,且先行词tiny space debris在从句中做主语,表事物,所以应该用关系代词which来引导,故填which.
[小题6]
考查形容词比较级。句意:想象一下一块更大的碎片可能造成的破坏。分析句意可知,此处与前文第5小题是对比关系,所以此处应该用比较级。故填larger.
[小题7]
考查动词。句意:欧洲字航局网站说,大于一厘米的物体能够毁坏卫星上的器械或关键的飞行系统,而大于10厘米就能够撕碎卫星或飞行器。分析句意可知,此处应该用提示词的反义词,表示“使不能够、毁坏"符合语境, could后接动词原形。故填stable。
[小题8]
考查介词。句意:除了给卫星或飞行器带来的潜在危害外,太空垃圾还可能给地球本身带来威胁。分析句式结构可知,此处用介词to构成固定搭配damage to sth。故填to。
[小题9]
考查反身代词。句意:同上。分析句意可知,此处用反身代词表示“地球本身"符合语境。故填itself。
[小题10]
考查主谓一致。句意:剩余的火箭残骸可能包含对动植物有害的物质。分析句式结构可知,主语Leftover rocket debris为复数名词,且时态为一般现在时,所以谓语动词用are。故填are。
阅读理解
[答案]
[小题1] A
[小题2] D
[小题3] C
[小题4] B
[导语]这是一篇说明文,主要介绍了多年来科学家认为宇宙中没有其他高等智慧生物,但是现在这种观点在改变。一些科学家相信宇宙中其他地方也存在高等智慧生物,并介绍了科学家对此问题的分析。
[小题1]
细节理解题。根据文中第一段中“Seth Shostak and Alexandra Barnett are astronomers.(Seth Shostak and Alexandra Barnett是天文学家。)”可知Seth Shostak and Alexandra Barnett二人都是天文学家。故选A项。
[小题2]
主旨大意题。通读第二段,尤其是“Why do Shostak and Barnett think intelligent life exists on other planets (为什么Shostak和Barnett认为在其他行星上存在高等智慧生物 )",“The first reason is time.(第一个原因是时间。 )"和"The second reason is size- the universe is huge.(第二个原因是大小一宇宙是巨大的。)"可知,本段要主介绍了Shostak和Barnett认为在其他行星上存在高等智慧生物的原因。故选D项。
[小题3]
推理判断题。根据文中第三段的第二句"In the past, it was hard to look for signs of intelligent life in the universe. But now, powerful telescopes (高倍望远镜) allow scientists to discover smaller planets- the size of Mars or Earth- in other solar systems.(过去,很难在宇宙中寻找智慧生命的迹象。但现在高倍望远镜允许科学家在其他太阳系发现更小的行星一如火星或地球大小。)”"可知, 过去在宇宙中寻求高等生物的信号难,是因为没有高倍望远镜。故选C项。
四.书面表达
[答案]范文一
Recently we have held a heated discussion about the problem whether mankind should explore space or not.Different people about it has different opinions.
Some people hold the view that space exploration will not only enable us to understand how the universe develop but also help farming to grow more food and apply the new technology to our life. While other people argue that we should stop exploring space because it costs too much time and money.
From my point of view, it is very necessary for human to explore space.Because it not only can provide the world with many different benefits, but also can solve people's shorten and long tern problems.
范文二
Space Exploration Is a Waste of Time and Money
Everyone gets excited by the news of the most recent space flights, and I too share in people 's sense of awe and wonder at the photos from space that we see. Having said that, it is hard to believe that the high cost of space flight is justified. We should be spending our money more wisely, on what people need.
I cannot understand spending all this money on expensive research and experiments when so many people need food. Around the world, millions of people are hungry and dying of starvation. On the other hand, we hear on TV that for as little as a dollar a day, a child in Africa can be saved. Considering the billions spent on space travel, it just seems a better investment to feed the hungry.
Besides, there are a lot of unsolved mysteries on the earth. So why are we going into space to explore There are still many things to discover in the ocean depths and the Antarctic. But we do not even have to go that far. Science has yet to unlock all the mysteries of the atom, and there are many realms of technology that we are just beginning to understand and explore.
Finally, it just doesn't seem a very wise investment to go to space. We have too many needs here on the earth to be wasting our effort on space exploration.
21世纪教育网(www.21cnjy.com)(共50张PPT)
Unit 4 Space Exploration
Period 4
Reading for Writing
新人教版(2019)
The first space vlog of Shenzhou 14
Lead in
Key words
argue
[ ɑ ɡju ] vt.&vi.
[语块积累]
argue with sb.
about/over sth.
resource
[r s s]n.
[语块积累]
natural resources
limited
[ l m t d] adj.
语块积累
limited time
shallow
[ l ] adj.
[语块积累]
sallow argument
Key words
monitor
[ m n t (r)] n.&vt.
[语块积累]
a computer monitor
regularly
[ reɡj l li] adv.
[语块积累]
a regular income
attach
[ t t ] vt.
[语块积累]
attach...to.....
Key words
run out
provide for sb.
result in
根据词义写出正确的单词及短语
1.___________n.设施;设备
2.___________adj.浅的;肤浅的;浅薄的
3.___________n.图案;模式;方式
4.___________n.监视器;监控器;显示器vt.监视;检查
5.___________n.泡沫橡胶;海绵橡胶;泡沫
6.___________n.智能手机
7.___________vt.&vi.论证;争辩;争论
facility
shallow 
pattern
monitor 
foam 
smartphone
Pre-reading
argue
根据词义写出正确的单词及短语
8.____________所以;结果(是)
9.____________n.资源;财力;物力
10.____________adj. 有限的
11.____________导致;造成
12.____________adv.经常;定期地
13.____________vt. 系;绑;贴; 与......有关联;认为有重要性
14.____________提供生活所需......;供养;为......做准备
15.___________用完;耗尽
Pre-reading
as a result
resource
limited
result in
regularly
attach
provide for sb.
run out
advantages:
①People understand the evolution of the universe and its
various physical phenomena and processes.
②Understand the status and significance of human beings
and earth creatures in the universe.
③Promoting scientific and technological progress and upgrading technology in many fields are closely related to space exploration.
Group discussion.What do you think are the advantages and
disadvantages of space exploration
disadvantages:
①The disadvantage is that space exploration requires a lot of manpower, money
and material resources.
②Space exploration produces a lot of space garbage in space.
Discussion
Pre-reading
①The Eiffel Tower is located in Paris, France.
②Exploring space provides the world with many different benefits.
③We should be grateful for more rain.
④Reading to babies is the best predictor of academic success.
⑤Countries around the globe are spending billions of dollars and lots of time on various space missions, whether to Mars or other planets much further away.
⑥I like chocolate chip cookies.
Writing elements include facts, arguments or opinions.
Observe the following sentences and tell which of the writing
elements the sentences belong to
express fact
express argument
express opinion
express argument
express fact
express opinion
Giving opinions:I think.../I believe.../In my opinion.../As far as I concerned...
Reading
Countries around the globe are spending billions of dollars and lots of time on various space missions,whether to Mars or other planets much further away. 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 to other problems, such as pollution and fatal diseases However; others feel this is a shallow view which fails to realise how exploring space helps us.
3. What is the author's comment
A.Stop wasting time and money exploring space
B. A shallow view which fails to realise how exploring space helps us.
Reading task
1. Which of the following writing elements does this passage belong to
A. Facts B. Arguments C. Opinions
2. The author proposes that__________ opinion
A.Similar opinions B.Opposite/opinions


Reading task: answer the following questions.

Firstly, exploring 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 analysis, the scientists can provide useful recommendations and advice for farmers. As a result, space-based science has helped Farming in its efforts to grow enough food to feed Earth's increasing population.
Reading
4.What is the author's comment
A. Stop wasting time and money exploring space
B. A shallow view which fails to realise how exploring space helps us.

many satellites that
now orbit Earth
exploring
space
record data
transmitted
& analysed
data
provide useful
recommendations
and advice
space-based science
has helped Farming
Mind map
Secondly, space exploration has already promoted technological improvements that benefit us all.High-end products around the world are made to a higher standard now because of advanced technology which was first created to meet the requirements for space exploration. For example, space technologies have helped the research and development of different types of new material. They have also helped companies make better heart monitors and other machines that doctors regularly use. Today, space technologies are widely used in all kinds of industries, and everyday products such as GPS, memory foam pillows, and smartphone cameras are changing our lives.
Reading
everyday
products
advanced technology was
first created to meet the requirements for...
made to a
higher standard
space exploration
has promoted
improvements
High-end products
new
material
heart monitors
&other machines
a Higher standard
Mind map
Finally, sending astronauts into space has helped people to think about the world' s problems and even to find ways to solve them. Seeing pictures of our planet as an island in a black sea made people realise that our planet's resources are limited. In order to provide for such a rapidly increasing population, scientists are trying to find other planets that could one day be our new home. The greatest attention at present is on Mars because it is closer to Earth in the future, humans may live on both planets.
provide for 供养 To supply or provide payment for the basic needs of someone or something.
Reading
a rapidly increasing
population
sending astronauts into space has helped people
the world's
problems
find ways to
solve them
find other
planets
our planet's
resources are limited
Mind map
In closing, exploring space provides the world with many different benefits.
Therefore it should continue so as to provide new and better solutions to
people's short-term and long-term problems.
Reading
It should continue so as to provide new and better solutions.
provide... with...提供......供应......
I provided you with plenty of chances to prove your abilities, but you keep letting me down.
conclusion
cause
Exploring space brings us many benefits.
effect
Explain people's different opinions on space exploration.
The organisation
and language features
Introduction
(supporting
evidence)
Body Paragraphs
First, exploring space has made a difference in the fight against world hunger.
Secondly, space exploration has already promoted technological improvements that benefit us all.
Finally,through space exploration, human being
may uncover the unknown resources of the universe.
Exploring space provides the world with many different benefits.
Closing opinion
(The writer's
opinion)
Summary
Summary
How to present
an argument
Topic
space exploration
Introduction
(Different
opinions)
stop wasting time and money exploring space
feed the world's poor
find immediate solutions to other problems
Body
(Benefits)
has made a difference in the fight against word hunger
has promoted technological improvements
has helped people to think about the world's problems and
even to find ways to solve them
Conclusion
Space exploration is beneficial and should be continued
Grammar
Part1 (Para. __ ) ____________________________________________________
Part2 (Paras. ___ ) __________________________________________________
Part3 ( Para.___ ) ___________________________________________________
How many parts can the text be divided into What is the main idea of each part
Read the text and fill in the blanks.
1
Different opinions about space exploration.
2-4
Benefits of space exploration.
5
Space exploration is beneficial and should be continued.
Practice
Para. __ ____________________________________________________
Para. __ ___________________________________________________________
_________________
Para. __ ___________________________________________________________
Para. __ ___________________________________________________________
___________________________________________________________________
Para.__ ___________________________________________________________
Space exploration has helped people to think about the world's
problems and even to find ways to solve them.
Space exploration has already made a difference in the fight against
world hunger.
Grammar
Practice
What is the main idea of each paragraph
Read the text and fill in the blanks.
1
Different opinions about space exploration.
2
3
Space exploration has promoted technological improvements.
4
5
Space exploration is beneficial and should be continued.
1.Some people think that we should spend time and money feeding the world's poor and finding immediate solutions to other problems instead of wasting them on space exploration.(  )
2.There are lots of satellites orbiting Earth which can help fight against world hunger.(  )
3.Space exploration has already promoted technological improvements that benefit only those who have been into space.(  )
4.In order to provide for such a rapidly increasing population, scientists have found other planets,for example Mars, which can be our new home.(  )
T
T
Judge whether the following sentences are correct. (T/F)
F
F
Practice
1 Why are some people against space exploration
2 What has space exploration done for food production
Because they think exploring space is a waste of time and money,and that we should use this money to feed the world's poor people and find immediate solutions to other problems, such as pollution and fatal diseases,instead.
Satellites have helped people study land and weather pattern. These studies help farmers grow more crops and warm them about natural disasters before they occur.
Practice
1 Read the argumentative essay about space exploration and answer the questions.
3 What did the pictures of Earth from space make people realise
4 How does space exploration benefit the products that people use nowadays
Advanced technology developed for space exploration has promoted technological improvements that benefit us all by allowing products to be made to a higher standard.
They made people realise that our planet's resources are limited.
Practice
1 Read the argumentative essay about space exploration and answer the questions.
1 Read the first paragraph and underline the different opinions about space exploration.
2 Study the organisation and language features.
Some people argue that we should stop wasting time and money exploring space.
However, others feel this is a shallow view which fails to realise how exploring
space helps us.
Practice
3 Underline the sentence that repeats the writer 's opinion in the last paragraph.
2 Study the organisation and language features.
In closing, exploring space provides the world with many different benefits.
Firstly, exploring space has already made a difference in the fight against world hunger.
Secondly,space exploration has already promoted technological improvements that benefit us all.
Finally,sending astronauts into space has helped people to think about the world's problems and even to find ways to solve them.
2 Find the three topic sentences that summarise the writer S arguments about
space exploration.
Practice
Grammar
Practice
This passage is an argumentative essay on whether it is worthwhile for human beings to explore space.
1.What is the main idea of the text
Read the text and answer the following questions.
2. What is the conclusion of the text about exploring space
Exploring space should continue to provide new and better solutions to
people's problems.
3. What is the author's attitude towards exploring space
Supportive
A There area lot of unsolved mysteries mist on Earth. So why are we going into
space to explore
B It is necessary to find a new home for people in space, as the resources on Earth
will run out.
C I cannot understand spending all this money on expensive research and
experiments when so many people need food.
D Exploring space encourages scientists to improve technology that can help
people in other ways, too.
3 Use what you have learnt to write about your opinion about
space exploration.
For space exploration
Against space exploration
B,D
A,C
Practice
1 Are these arguments for or against exploring space Pu them in the table below.
Then add your own ideas and write your essay.
Space exploration is a Waste of Time and Money
Everyone gets excited by the news of the most recent space fights,and I too share
in people's sense of awe (敬畏) and wonder at the photos from space that we see.
Having said that, it is hard to believe that the high cost of space flight is justified
so that we can get some lovely pictures. We should be spending our money more wisely, on what people need.
I cannot understand spending all this money on expensive research and experiments when so many people need food.Around the world. millions of people
are hungry and dying of starvation. On the other hand, we hear on TV that for as
little as a dollar a day,a child in Africa can be saved.Considering the billions spent on space travel, it just seems a better investment to feed the hungry.
Practice
Some people argue that someday we will have to go to live in space because the world will be made impossible to live in through pollution. This seems silly. When your house gets dirty, you spend the time and money cleaning it up. You don't
move house simply because you need to wash your windows or vacuum the floor. In the same way,it makes more sense to use our time and money to take care of our planet, rather than look for a new home.
Practice
Finally, there are a lot of unsolved mysteries on Earth. So why are we going into space to explore There are still many things to discover in the ocean depths and
the Antarctic. But we do not even have to go that far: Science has yet to unlock
all the mysteries of the atom, and there are many realms of technology that we are just beginning to understand and explore.
In the end, it just does not seem a very wise investment to go to space. We have
too many needs here on Earth to be wasting our effort on space exploration.
Practice
√Does the introduction state the topic
√Does the introduction express different opinions about the topic
√Does the body give arguments with suitable supporting information
√ Does the closing express the writer s opinion and end properly
√Are there any grammar,spelling, or punctuation errors
2 Exchange drafts with a partner. Use the checklist to give feedback on your
partner 's draft.
Practice
3 Get your draft back and revise it.
Practice
4 Present your essay to the rest of the class.
Practice
argue vt.&vi.论证;争辩;争论( argument n.争论;争吵;论点)
They're always arguing with each other about money.他们总是为钱吵嘴。
She got into an argument with the teacher.她和老师争论了起来。
语块积累
argue with sb. about/over sth.与某人争论某事
argue for为....而争辩
argue against为反对,而争辩;不赞成
win/lose an argument 争吵/争论赢了/输了
1.Some people argue that we should stop wasting time and
money exploring space.一部分人认为,我们应该停止浪费
时间和金钱去探索太空。
语法填空
Tom has been arguing _____ his brother about whether they should hire more people to work for them.
with
Language point
2.As a result, space based science has helped farming in its efforts to grow enough food to feed Earth's increasing population.所以,基于太空的科学帮助农业努力种植足够的粮食来养活地球上不断增长的人口。
Language point
“to grow enough food”是宾语补足语;“to feed Earth's increasing population”是目的状语;“in its efforts”是介词短语作状语。
as a result所以;结果(是)
词语辨析:as a result与as a result of
(1)as a result“所以;结果(是)”, 单独使用,一般放在句首,后面常加逗号。
(2)as a result of“.....结果,由于”, 后接名词、代词或动名词作宾语。
He made a big mistake.As a result,he lost his job.他犯了个大错,结果丢了工作。
语法填空
____ a result of the pilots strike, all fights had to be cancelled.
As
3. Seeing pictures of our Planet as an island in a black sea made realise people
that our planet's resources are are limited.看着我们星球的照片,犹如黑色汪洋大海中的一个小岛, 人们意识到地球的资原是有限的。
(1)resource n.资源;财力;物力(常用复数)
We must make the most use of the available financial
resources.我们必须充分利用现有财力。
语块积累
natural/human resources自然/人力资源
abundant/rich/limited resources充足的/丰富的/有限的资源
exploit/waste resources开发/浪费资源
单句语法填空
①Some families don't have the _________ (resource)to feed themselves adequately.
resources
Language point
(2) limited adj. 有限的(limit n. & v. 限制;限度)
We are doing our best with the limited resources available.
我们利用可获得的有限资源,尽最大的努力。
The EU has set strict limits on levels of pollution.
欧盟对污染程度作了严格的限定。
Families are limited to four free tickets each.每户限发四张免费票。
语块积累
limited time/space 有限的时间/空间 limited liability company有限责任公司
a limit to...对....的限制 a time speed/age limit时间/速度/年龄限制
单句语法填空
I didn't buy that expensive book, for the amount of money we had was _______ (limit).
limited
Language point
argue vt.&vi.论证;争辩;争论(→argument n.争论;争吵;论点)
They're always arguing with each other about money.他们总是为钱吵嘴。
She got into an argument with the teacher.她和老师争论了起来。
语块积累
argue with sb. about sth.与某人争论某事 argue for为支持......而争辩
argue against为......而争辩;不赞成
argue sb. into/out of doing sth.说服某人做/不做某事
4. Some people argue that we should stop wasting time and money exploring space.
一部分 人认为,我们应该停止浪费时间和金钱去探索太空。
Language point
单句语法填空
①Tom has been arguing_____his brother about whether they should hire more people to work for them.
②Robert, who was a wildlife lover, argued________shooting creatures to make profits.
with
against
shallow adj.肤浅的;浅的;shallowly adv.肤浅地;浅浅地; shallowness肤浅;浅薄
He is physically attractive, but shallow.
他外表吸引人,但是内心肤浅。
We can wade shallow rivers, but deeper ones we'll have to swim.
水浅的河我们可以蹚过去,水深的河就得游过去。
语块积累
sallow argument 一个肤浅的论点 a sallow person一个肤浅的人
5. However, others feel this is a shallow view...
然而,另一部分人觉得这是一种肤浅的观点......
Language point
语法填空
①A stream is smaller__________(shallow) and than a river.
②Thus, she loves her husband but nevertheless be dissatisfied with his______________
(shallow).
shallower
shallowness
result in 导致;造成
The flood resulted in a considerable reduction in production.
这次水灾造成了相当大的减产。
对比:
(1)result in 导致,造成(其后接结果)
(2)result from由......引起,在于(其后接原因)
Hard work results in success.努力工作才能成功。
6.It has directly resulted in the many satellites that now orbit Earth.
如今环绕地球运行的众多卫星都直接归功于它(太空探索)。
单句语法填空
①To her sadness,the quarrel resulted ___ the ending of their marriage.
②The fire _________ (result) in damage to their property was caused by a
careless smoker.
in
resulting
Language point
(1)monitor n.班长;监视器;显示屏 vt.监视;检查;监听
The details of today's flights are displayed on the monitor.
今天航班的详细情况都列在显示屏上。
Each student s progress is closely monitored.
每一位同学的进步都受到密切的关注。
语块积累
a computer monitor计算机的显示器 monitor a conversation监听谈话
monitor the situation closely密切关注局势 be carefully monitored受到仔细地监控
7.They have also helped companies make better heart monitors and
other machines that doctors regularly use.它们(太空技术)还帮助一些
公司制造出更好的心脏监测仪以及医生经常使用的其他设备。
单句语法填空
①Heart rate__________(monitor) will let you know how hard you are working out.
②Both patients were being actively____________ (monitor) by the nurses.
monitors
monitored
Language point
(2) regularly adv.经常;定期地(→regular adj.定期的;经常的;正常的;平常的;固定的;有规律的)
Water the plant regularly, never letting the soil dry out.经常给植物浇水,别让土壤干透了。
Water the plants regularly to keep the soil moist.定时浇灌植物以保持土壤湿润。
My mother comes to see me on a regular basis.我妈妈定期来看我。
Regular exercise is recommended to keep good health.建议有规律的进行锻炼,这样就可以保持身体健康。
语块积累
work out/exercise regularly经常锻炼on a regular basis定期地
regular breathing均匀的呼吸 a regular income固定的收入
单句语法填空
①If you want to keep fit, you can exercise_______(regular) in a gym.
②We update the data ____ regular basis.
regularly
on
Language point
provide for sb.提供生活所需......;供养;为…...做准备
I could provide for my boy and his mom.
我可以好好供养我的儿子和妻子。
They want to be able to provide for their children and their future.
她们希望能抚养孩子并为将来做准备。
语块积累
provide for sth.为...做好准备
provide sb. with sth.把某物提供给某人
provide sth. for sb.为某人提供某物说明
8. in order to provide for population.为了满足快速增长的人口需求......
语法填空
①My father provides ____ our family by working in an IT company.
②We are here to provide the public _____ a service.
for
with
Language point
run out用完;耗尽
语块积累
run across偶然碰见 run after追赶;追求 run away (from)逃走;逃避 run into撞上;偶然遇见;遇到
学法点拨
(1)run out是不及物动词短语,不用于被动语态;run out of表示“用完....耗尽.....”,
是及物动词短语,可用于被动语态。
Her money has run out and she is also running out of patience.
她的钱已经用完了,她的耐心也在耗尽。
(2)“用完, 用尽”的其他表达:use up及物动词短语;give out不及物动词短语。
The human race is using up Earth s resources.人类正在耗尽地球上的资源。
Let's go home. My strength has given out.咱们回家吧,我筋疲力尽了。
9. It is necessary to find a new home for people in space,as the resources on Earth will run out.由于地球上的资原将会耗尽,有必要在太空中为人类找一个新的家园。
单句语法填空
①We must take measures quickly because time is running _____.
②He has run out ____ all the energy.
out
of
Language point
attach vt. 系;绑;贴; .与.....有关联;认为有重要性
I attach great importance to this research.
我认为这项研究十分重要。
As a student, he attaches great value to learning strategies.
作为一名学生,他非常重视学习策略。
语块积累
attach...to.....把....固定在/附在.....上 be attached to附属于;喜欢(to是介词)
10. While landing, they must attach themselves to something
so as to prevent floating around.着陆时,他们必须把自己固
定在某物上,以防止四处漂浮。
Language point
语法填空
①Attach a recent photo ___ the application form.
②At first, we didn't feel we belong here, but now we are _________ (attach)to the land we live on.
to
attached
1.facility n.设施;设备
2.shallow adj.浅的;肤浅的;浅薄的
3.pattern n.图案;模式;方式
4.monitor n.监视器;监控器;显示器vt.监视;检查
5.foam n.泡沫 橡胶;海绵橡胶;泡沫
6.argue vt.&vi.论证;争辩;争论
7. as a result所以;结果(是)
8. resource n.资源;财力;物力
9.limited adj.有限的
10.result in导致;造成
11.regularly adv.经常;定期地
12.attach vt.系;绑;贴; ....有关联;认为有重要性
13.provide for sb.提供生活所....供养;.为...做准备
14.run out 用完;耗尽
Summary
重要单词及短语
Homework
1. Review the key words and phrases in this class.
2.假定你是李华,你想邀请你的英国笔友Tom来你校参加张教授的关于“ 黑洞”的讲座。请你写封邮件告诉他本次讲座的情况。内容包括:
(1) 时间和地点;
(2)内容:学习“ 黑洞”的成因以及影响;
(3)课前准备:简单了解地理学、物理学和天文学知识。
注意:
(1)词数80左右;
(2)可以适当增加细节,以使行文连贯。
Homework
[答案] Dear Tom,
How are you I'm glad to tell you that there will be a lecture so I am writing to invite you to my school to attend it. Let me introduce it to you.
The lecture is given by a famous professor named Mr Zhang next weekend in our school hall. The content of the lecture is about "black hole", which is a hot topic among people recently. So Professor Zhang is going to tell us
what caused the black hole and what effect it will result in on the whole world. In order to attend the lecture you are supposed to make full preparations for it. For example you'd better have a wide range of knowledge such as
geography, physics and astronomy.
I'm looking forward to your early reply. Welcome to my school. I'll meet you at the school gate.
Yours
Li Hua
Homework