人教版 (2019)必修 第三册Unit 4 Space Exploration精品ppt课件

这是一份人教版 (2019)必修 第三册Unit 4 Space Exploration精品ppt课件，共34页。PPT课件主要包含了Mind map，典例示范，Writing等内容，欢迎下载使用。

1. Read the argumentative passage abut space explratin.2. Study the features f the argumentative passage3. Try t write an argumentative passage .
D yu agree?
S we shuld pay mre attentin t the Wrld's pllutin and pverty issues rather than space explratin.
Many scientists insist: space explratin wastes t much recurses.
Step 1. Lead-in
I think we shuld be favr f it because a lt f space technlgies has already prvided service fr us cmmn peple, like GPS.
I think we shuld stp because we need mre mney and effrt t help the pr, the disabled. What’s wrse, there are a lt f risks in space explratin, like the Challenger accident.
3 Underline the sentence that repeats the writer's pinin in the last paragraph.
1 Read the first paragraph and underline the different pinins abut space explratin.
2 Find the three tpic sentences that summarise the writer's arguments abut space explratin.
Read the passage quickly and answer these questins.
Bdy(supprting details)
para1Para2Para3Para4 Para5
Explring space has already made a difference in the fight against wrld hunger.
Space explratin has already prmted technlgical imprvements that benefit us all.
Sending astrnauts int space helped peple t think abut the wrld's prblems and even t find ways t slve them.
This is a shallw view which fails t realize nw explring space helps us.
Explring space prvides the wrld with many different benefits.
Task 2: Read Find ut the main idea fr each paragrah.
1. Why are sme peple against space explratin?2. What has space explratin dne fr fd prductin?3. What did the pictures f Earth frm space make peple realise?4. Hw des space explratin benefit the prducts that peple use nwadays?
Task 3: Read the passage n P44 and answer the questins.
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.
1. Why are sme peple against space explratin?
2. What has space explratin dne fr fd prductin?3. What did the pictures f Earth frm space make peple realise?
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.
4. Hw des space explratin benefit the prducts that peple use nwadays?
Advanced technlgy develped fr space explratin has prmted technlgical imprvements that benefit us all by allwing prducts t be made t a higher standard.
Different Opinins
We shuld stp explring space. Other pinin: ________________________.
Explring space can help us
Different benefits
It can _______________________. It prmtes ___________________. It helps peple __________the wrld's prblem.
fight against wrld hunger
technlgical imprments
think abut
Explring space shuld ___________.
be cntinued
Is explring space a waste?
Language pints
Step 3.Writing
本单元的写作任务是写辩论性文章。辩论性文章在行文时一般分为三个段落：第一部分：引入辩论的话题；第二部分：列举正方观点及理由；列举反方观点及理由；第三部分：表明作者自己的观点。有时候正方的观点和反方的观点各成一段，这样的话全文可分为四段。
1.介绍讨论的主题(开头句)We had a discussin abut whether it is necessary ’ve had a survey n hw t chse their curses，majrs and universities.We have held a discussin abut whether it is gd r nt...
2.过渡句Opinins are divided n this issue.Opinins are mainly divided int tw grups.Different peple，hwever，have different pinins n this matter.Different peple，hwever，think quite differently n this matter.
3.介绍正方观点45% f the students hld the view ne thing， anther thing，% f the students are fr the idea.4.介绍反方观点On the cntrary/Hwever/As the ld saying ges，each cin has tw sides.Nearly half f the students think the ne hand， the ther hand，...
5.转折词表示起始关系: abve all， t begin/start with， tday， nw， nwadays， at present， currently， recently， generally speaking， accrding t， with the develpment f ...表示时间顺序: firstly， first f all， t begin/start with， then， later， in the end， finally， at last， after that， afterwards, since then, immediatelysuddenly, meanwhile
表示并列关系: and， r， als， as well as， neither ... nr ...， nt nly ... but als ...， either ... r ...， nt ... but ...表示转折关系: but， yet， hwever， while， therwise， n the cntrary， thugh， althugh， even if/thugh， despite， in spite f， regardless f表示因果关系: because， as，since， fr， thanks t， due t，as a result f，s，therefre， as a result/cnsequence
表示递进关系: what's mre， furthermre， mrever， besides， what's wrse， still less， t make matters wrse， wrse still， n the ne hand ... n the ther hand ...， fr ne thing ... fr anther thing...表示列举事实:such as， fr example/instance， take ... fr example， that is t say， as fllws， in ther wrds
表示观点:in my pinin， in my view， frm my pint f view， as far as I am cncerned， as fr me， persnally表示总结:in shrt， in brief， in cnclusin， in a/ne wrd， t sum up， all in all， n the whle， in general
假设你是李华，最近你班就“人类是否应该开展克隆研究”进行了讨论。请根据讨论结果，写一封80词左右的信给某英文报社的编辑来报道此事。
注意：1.词数80左右。2.开头已给出，不计入总词数。_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
写作要求是阐述“人类是否应该开展克隆研究”的讨论结果，写作时应注意下面几点：1.确定文体：这是一篇议论文。写作时要注意议论文的写作特点。2.主体时态：文章应以一般现在时为主。3.主体人称：由于是关于“人类是否应该开展克隆研究”的话题，所以人称应该以第三人称为主。
谋篇第一段：选用合适的称呼语，提出论题——人类是否应该开展克隆研究。第二段：正方观点——1.挽救濒危动物；2.再造人体器官，用于移植。反方观点——1.引起基因变异；2.克隆人导致伦理道德混乱。第三段：自己的观点——总结全文，言简意赅。
1.拯救濒危动物2.处理3.也，又，还4.反对5.引起6.有……影响
_____________________________________________________________________________________________
save endangered animalsdeal/d withas well asbe against/bject (t)bring abuthave effects/an effect n
1.克隆对拯救濒临灭绝的动物有用。Clning is useful .2.克隆有助于研究许多疾病的治疗方法。(be＋f＋n.＋in ding) fr many diseases.
fr saving endangered animals
Clning is f help in researching int the cures
3.我个人认为，政府应该认真对待、严密监控克隆问题。Persnally，the gvernment shuld and mnitr it clsely.4.我们对克隆在未来会对世界产生的影响还不够了解。 the wrld in the future？We dn’t understand enugh.
deal with clning carefully
What effects will clning have n
1.按括号内的要求合并句1和句2。(1)_______________________________________________________________________________________________________________________(nt als...，nt nly置于句首)(2)_____________________________________________________________________________________________________(as well as)
Nt nly is clning useful fr saving endangered animals，but als it is f help in researching int the cures fr many diseases.
Clning is f help in researching int the cures fr many diseases as well as useful fr saving endangered animals.
2.用被动语态改写句3。________________________________________________________________________________________________________3.用宾语从句改写句4。________________________________________________________________________________________________________
Persnally，clning shuld be dealt with carefully and mnitred clsely by the gvernment.
We dn’t understand enugh what effects clning will have n the wrld in the future.
Dear Editr，Recently ur class has had a discussin abut whether the clne research shuld be carried ut.Sme f the students are fr the clne research.They say clning is f help in researching int the cures fr many diseases as well as useful fr saving endangered animals.Clning human cells in a lab culd ffer perfect rgans fr patients t transplant.Hwever，thers are against it.
Thugh clning might imprve the quality f life，it might bring abut sme genetic changes.It als might raise ethical prblems. Persnally，clning shuld be dealt with carefully and mnitred clsely by the gvernment，because we dn’t understand enugh what effects clning will have n the wrld in the future.YursLi Hua