2021学年Topic 2 All these problems are very serious.背景图课件ppt

这是一份2021学年Topic 2 All these problems are very serious.背景图课件ppt，共21页。PPT课件主要包含了重点短语，词形变化，重点句型，典型例题，目 录，CONTENTS，重点语法， 1 沿着街道走，阻止某人做某事，Cut down等内容，欢迎下载使用。

从文章中找出下列重点短语（1）
walk dwn the street
As a result
change…int…
stp/keep/prevent sb frm ding sth
air pllutin
Blw sth away
On the earth
Destry the envirnment
从文章中找出下列重点短语（2）
Disappear rapidly
从文章中找出下列重点短语（3）
Smething useful
Here and there
prtect the envirnment
11.一些有用的东西
从文章中找出下列重点短语（4）
Break/fllw the rule
As we all knw
During this perid
In many ways
从文章中找出下列重点短语（5）
Be imprtant t sth
Pass thrugh
The greenhuse effect
从文章中找出下列重点短语（6）
Avid ding sth
Water shrtage
Water resurce
Be cvered with
写出下列单词的词形变化
1.cmpletely adv.彻底地，完整地
___________adj.彻底的，完整的 v.完成
__________v.使用
________adj.干净的，整洁的
_________adj.（原级）________差的 adj.（比较级）
______________v.指导
________________adj.短的；矮的
bad wrse
2.User n.使用者，用户
3.untidy adj.不整洁的，凌乱的
4.wrst adj.最差的，最糟的
5. directly adv.直接地
6.shrtage n.不足；短缺
分析并背诵下列重点句型
1.Nne f us likes pllutin.我们中没有人喜欢污染。2.Dn’t spit anywhere in public.不要在公众场合随地吐痰。3.Every shuld care fr wild animals and plant mre trees.每个人都应该照顾野生动物并种更多树4.We shuld d everything we can t prtect the envirnment.我们应该尽我们所能去保护环境。
5.As a result, a lt f rich land has changed int desert.结果，很多富饶的土地都变成了沙漠。6.Trees can stp the wind frm blwing the earth away.树可以阻止风把土地吹走。7.We shuldn’t leave rubbish here and there.我们不应该随地扔垃圾。8.All these prblems are very serius, s we must d smething nw.所有的这些问题都很严重，所以我们必须做点什么。
重点语法—不定代词和副词
smebdy, smene, smething, smewhere anybdy, anyne, anything, anywhere nne, nbdy, nthing, nwhere everybdy, everyne, everything, everywhere
一般情况下用于否定句和疑问句
一、构成。不定代词、副词是由sme, any, n, every与thing, ne, bdy, where 等构成。E.g. smething, smene, nwhere, anybdy等。二、用法。1．通常情况下,由sme, every加后缀构成的不定代词、副词常用于肯定句；由any加后缀构成的不定代词、副词常用于疑问句、否定句中。E.g. Yu will find yur bag smewhere. Can yu hear anything? 2. 注意：当说话人希望得到肯定答复,或是表示建议、请求等意图时,smething, smebdy, smene也可以用于疑问句中。当要表达“任何人；任何事物”时,anything, anybdy, anyne也可以用于肯定句中。E.g. Wuld yu like smething t drink? Anybdy can d it except Tm.
1.I have ____ t tell yu.A. imprtant smethingB. smething imprtant
形容词修饰不定代词和不定副词时，要放在不定代词/不定副词之后
2.Everybdy ___ ready fr the match.A. is B. are
不定代词作主语时，谓语动词要用单数。
Nne f us likes pllutin. 没人喜欢污染。
prn.没有一个， 毫无
nne和n ne 的区别;
N ne 1)不与f连用；2)谓语动词用单数；3)只能指人，但不具体指什么人；4)一般用来回答wh,及含anyne, anybdy引起的疑问句。
Nne 1)可与f连用；2)谓语动词用单或复数；3)具体指什么人或物；4)一般用来回答hw many +n, hw much +n及含any +n引起的疑问句。
1. —Which wuld yu like t drink, tea r cffee? —________, thanks. I’m nt thirsty. A. EitherB. NeitherC. LittleD. Few 2. The students are ding sme cleaning. Sme are sweeping the flr, ________ are cleaning the desks and chairs. A. therB. the therC. anther D. thers 3. My parents are ________ dctrs. A. bthB. allC. either D. neither
4. There is ________ with my cmputer. Can yu help me? A. wrng anything B. anything wrng C. wrng smethingD. smething wrng5. The wind was blwing strngly. ________ peple walked in the street. A. LittleB. A littleC. FewD. A few 6. Hurry up. There is ________ time left. A. a littleB. littleC. a fewD. few
If we want t use the sea water, we must ______ ___(拿走） the salt frm the sea water. Hw can we _________(避免) a serius water shrtage? We shuld __________(找到) ways t reuse water. Peple’s need fr water is increasing ____________(一天天).Althugh the wrld is hungry, it is even ______(更渴的)While ___________(几乎，差不多)¾ f the earth is cvered with water, we are still shrt f drinking water.
take away
Use smene, smething, anything, smewhere, anywhere T fill in the blanks.
Lily, wuld yu like ___________ t drink? Cindy is very busy nw. She needs _______ t help her. Is there _________ wrng with yur cmputer?Jim lked fr his pencil-bx ____________ , but he didn’t find it. I stayed at hme last week. I didn’t g __________.
Fill in the blanks using smething, anything, thers, n nbdy, everyne, anybdy, everywhere, nne, ther.
(1)________ f us knws hw t stp the bad behavir.(2) I kncked n the dr but ___________ answered.(3) Sme f these bks are better than__________.(4) She was driving the car with ne hand and wiping the windw with the _______.(5) They are beautiful but I am lking fr ___________ useful.(6) Is there ___________ yu can d t help her?(7) There’re 5 000 peple living here and almst _________has his/her wn car.(8) He’s cleverer than ____________ I knw.(9) I’ve lked __________ but I can’t find it.