高教版（2021）基础模块3Unit 7 Natural Disasters课前预习ppt课件

这是一份高教版（2021）基础模块3Unit 7 Natural Disasters课前预习ppt课件，共30页。PPT课件主要包含了CONTENTS，Homework等内容，欢迎下载使用。

What is a nun clause?
Nun clause as subjects
We als use it t intrduce r anticipate the subject r bject f a sentence, especially when the subject r bject f the sentence is a clause. Mst cmmnly, such clauses are t + infinitive and that clauses. We als call this use f it a “dummy” subject, since the real subject is anther part f the sentence (real subject underlined): It’s gd that she’s ding mre exercise. (r, mre frmally: That she’s ding mre exercise is gd.)It was nice t talk with them again. (r, mre frmally: T talk with them again was nice.)It’s quite likely that we shall be late, s please d start withut us.
Dummy subject – it
It is a pity/shame that... It is a surprise that... It is a fact that…It is cmmn knwledge that…
It’s certain that…It is pssible that ... It is unlikely that ... It is bvius that…It is necessary/imprtant/ natural that …
It seems as if …It desn’t matter that …It is reprted that… It is said that… It is believed that…
Nun clause as cmplement
Mre examples
Scientists believe that Cvid is ging t stay with us fr at least few years.Sme wnder if there is intelligent life like us n ther planets.We dn’t knw wh ur real friends are till adversity strikes.Drunkenness reveals what sberness cnceals.
Task 16 Read and grup.
根据上面的例句对下列句子进行归类。
It is said that the first bridge was built mre than three centuries ag. The fact is that he culdn’t use the cmputer.That is why they decided t hld a meeting. It wn’t make t much difference whether we have it r nt.The prblem is which team will be chsen.It desn’t matter whether yu pay cash r by credit card.
Task 17 Read and match.
将上下两栏匹配，组成完整的句子。
We cut dwn t many trees and badly plluted the envirnment. That is why ___________________________________________________________________________________________.
light travels in straight lines.is nt knwn yet.we have mre natural disasters. sme peple d nt fllw the rules.we get up early tmrrw mrning.mre and mre peple have cme t realize the imprtance f envirnmental prtectin.
we have mre natural disasters.
上下两栏匹配，组成完整的句子。
We have clear signs and strict rules. The truble is ______________________________________________________________________________________________________________________________.
sme peple d nt fllw
Tmrrw will be very busy. My suggestin is that ________________________________ ___________________________________________________________________________________________.
we get up early tmrrw
Light travels faster than sund. And it’s knwn t all that _________________________ ___________________________________________________________________________________________.
straight lines
light travels in
We can’t find her. Where she has gne ______________________________________________.
is nt knwn yet
The Earth is ur hme. It’s lucky that _______________________________________________ ___________________________________________________________________________________________.
mre and mre peple have cme t
realize the imprtance f envirnmental prtectin.
Task 18 Read and cmplete.
阅读下面的句子，将括号内的词语重新排列补全对话。
1) A: When will Mr Brwn arrive tmrrw?B: ___________________________________________ is still uncertain. (Mr Brwn, whether, r nt, cming, is)2) A: Are yu alright? Yu lk tired. B: I’m fine. _______________ is taking a rest. (need, what, I ) 3) A: What’s the prblem nw?B: ___________________________ we can hld ur ftball match. (where, the prblem, is)
Whether Mr Brwn is cming r nt
What I need
The prblem is where
4) A: Where did yu g last week? B: I drve t Tianjin last week. ______________ I had a few days ff. (why, is, that)5) A: What did yu tell him? He seems very happy.B: _________________________ that I fund him a gd bk. (tld him, what, was, I)6) A: They are wrking very hard, and we shuld learn frm them.B: Yes, and ______________ they vercme the difficulties. (is, hw, this)
That is why
What I tld him was
Task 19 Read and match.
将左右两栏相匹配，组成完整的句子，注意画线词的含义。
1) My flight is canceled,2) Our Earth is badly plluted,3) Air pllutin is4) T prmte the use f green energy,5) Flds have caused great damage t ur life,6) He was late fr class7) We wrk in the same cmpany,
which is affecting ur lives.s we see each ther frequently.caused by harmful gases frm heavy industry.s we shuld d smething t prevent them.due t the traffic jam.the gvernment is trying t encurage peple t buy new energy cars.s I have t take the train t Shanghai.
Task 20 Read and cmplete.
用所给词的适当形式补全句子。
1) The meeting has been ____________________ due t sme reasns.2) Plastic bags will ____________________ ur envirnment, s we shuld prevent peple frm using it.3) Due t the wrng address, yur rder has been ____________________. 4) The air pllutin is ____________________ by heavy industries and transprtatin.5) Hw will yu ____________________ the sales f the new prducts?
6) The dctr ____________________ his patient frm ging hme yesterday.7) I knw him, but we dn’t see each ther ____________________.8) He has wrked in this cmpany fr ten years, it is time fr him t get ______________.9) The flight was delayed ____________________ bad weather.10) We’re nt respnsible fr the damage ____________________ by delivery.
Task 21 Read and cmplete.
阅读并完成关于环境保护的短文。
Tday, natural disasters strike mre 1)　　　 　　 than befre, and sme f them are 2)　　　　 　 by human activities. Fr example, 3)　　　　　 the rapid urban develpment, we have mre sandstrms. T many vehicles in large cities have 4)　　　 　　 the air. These disasters have badly influenced ur daily life, fr example, the flights are 5)　　 　　 because f the smg r sandstrm. In rder t 6)　　　 　　 such disasters, peple shuld prtect the envirnment and realize the imprtance f sustainable develpment. It’s time fr us t make a change and take actins such as 7)　 　 　　　 the use f electric cars and planting mre trees t make a better life.
Use the wrd clud t check the wrds and expressins yu have learned.
看词汇云，检查自己对本单元词汇的掌握情况。