高中人教版 (2019)Unit 4 Space Exploration备课ppt课件

这是一份高中人教版 (2019)Unit 4 Space Exploration备课ppt课件，共22页。
Lk at the pictures and discuss the questin in grups.
• What is yur pinin abut space explratin? Are yu fr r against it? Why?
Read the text and answer the questins.
• What is genre f the text?
An argumentative essay.
• What’s the writer’s attitude twards explring space?Supprtive. 　　　　B. Objective. 　　　　　C. Neutral. 　　　　 D. Negative.
Read the text fr the main idea f each paragraph and think the structure f the text.
Paragraph 1: This is a shallw view which fails t realise hw explring space helps us. Paragraph 2: Explring space has already made a difference in the fight against wrld hunger.Paragraph 3: Space explratin has already prmted technlgical imprvements that benefit us all. Paragraph 4: Sending astrnauts int space has helped peple t think abut the wrld’s prblems and even t find ways t slve them.Paragraph 5: Explring space prvides the wrld with many different benefits.
The structure f the text: general—particular—general (总—分—总)
Read the argumentative essay again and answer the questins.
• Why are sme peple against space explratin?• What has space explratin dne fr fd prductin?• What did the pictures f Earth frm space make peple realise?• Hw des space explratin benefit the prducts that peple use nwadays?
Because they think it is a waste f time and mney, and that we shuld feed the wrld’s pr and find immediate slutins t ther prblems, such as pllutin and fatal diseases, instead.
Satellites study land and weather patterns. These studies help farmers grw mre crps and warn them abut natural disasters befre they ccur.
They made peple realise that ur planet’s resurces are limited.
Advanced technlgies develped fr space explratin have prmted technlgical imprvements that benefit us all by allwing prducts t be made t a higher standard.
Study the rganisatin and language features.
Wrk ut the crrect structure f the text and then summarise the rganisatin f an argumentative essay.
Each tpic sentence is fllwed by examples, illustratins, r explanatins t fully develp the main idea.
Make a summary f the features f an argumentative essay.
Discuss the fllwing arguments and put them in the table belw.
A. There are a lt f unslved mysteries n Earth. S why are we ging int space t explre?B. It is necessary t find a new hme fr peple in space, as the resurces n Earth will run ut.C. I cannt understand spending all this mney n expensive research and experiments when s many peple need fd.D. Explring space encurages scientists t imprve technlgy that can help peple in ther ways, t.
• Are these arguments fr r against explring space?
B. It is necessary t find a new hme fr peple in space, as the resurces n Earth will run ut.D. Explring space encurages scientists t imprve technlgy that can help peple in ther ways, t.
There are a lt f unslved mysteries n Earth. S why are we ging int space t explre?C. I cannt understand spending all this mney n expensive research and experiments when s many peple need fd.
Wrk in grups. Discuss arguments fr r against space explratin.
▶ Fr space explratin• Scientific knwledge has value beynd the cst;• It is in man’s nature t explre his envirnment;• Many discveries have been made as a result f space explratin;• Artificial satellites help peple mnitr the effects f glbal warming and detect wildfires;• Space prgrammes help find slutins t adapt human lives t space r ther planets;• Space explratin may speed up technlgical prgress;• Space travel industry prvides many jb pprtunities.
▶Against space explratin• Space explratin gives us n direct benefit;• Earth itself is nt fully explred yet;• Mney is better used t help human lives n Earth;• Space travel implies significant air pllutin;• Lng space missins can cause damage t the bne tissue and bne cells f astrnauts, which can increase the risk f cancer and thus threaten their lives;• Explring space culd becme an invitatin fr interstellar war.
现你校英语报Vice Yur Opinin栏目正在征集大家对于太空探索的利弊的看法，请发表你的观点。
Write an argumentative essay abut space explratin, which shuld cntain yur viewpint, supprting details and a cnclusin.
Exchange yur draft with a partner. Use the checklist t give feedback n yur partner’s draft.
√ Des the intrductin state the tpic?√ Des the intrductin express different pinins abut the tpic? √ Des the bdy give arguments with suitable supprting infrmatin?√ Des the clsing express the writer’s pinin and end prperly?√ Are there any grammar, spelling, r punctuatin errrs?
Read and make sme cmments n the shared draft. If pssible, try t plish it.
Sample: Everyne gets excited by the news f the mst recent space flights, and I t share in peple’s sense f awe and wnder at the phts frm space that we see. Having said that, it is hard t believe that the high cst f space flight is justified s that we can get sme lvely pictures. We shuld be spending ur mney mre wisely, n what peple need. I cannt understand spending all this mney n expensive research and experiments when s many peple need fd. Arund the wrld, millins f peple are hungry and dying f starvatin. On the ther hand, we hear n TV that fr as little as a dllar a day, a child in Africa can be saved. Cnsidering the billins spent n space travel, it just seems a better investment t feed the hungry.
Make sme cmments n the shared draft. If pssible, try t plish it.
Sme peple argue that smeday we will have t g live in space because the wrld will be made impssible t live in thrugh pllutin. This seems silly. When yur huse gets dirty, yu spend the time and mney t clean it up. Yu dn’t mve huse simply because yu need t wash yur windws r vacuum the flr. In the same way, it makes mre sense t use ur time and mney t take care f ur planet, rather than lk fr a new hme. Finally, there are a lt f unslved mysteries n Earth. S why are we ging int space t explre? There are still many things t discver in the cean depths and the Antarctic. But we d nt even have t g that far: Science has yet t unlck all the mysteries f the atm, and there are many realms f technlgy that we are just beginning t understand and explre. In the end, it just des nt seem a very wise investment t g t space. We have t many needs here n Earth t be wasting ur effrt n space explratin.