初中英语人教版（2024）九年级全册Unit 13 We’re trying to save the earth!Section A教课内容ppt课件

这是一份初中英语人教版（2024）九年级全册Unit 13 We’re trying to save the earth!Section A教课内容ppt课件，共17页。PPT课件主要包含了学科素养，Lead-in，Story time，used to，meaning，form，use，过去分词构成规则，情态动词后接动词原形， 4a等内容，欢迎下载使用。
1. 语言能力：（1）能够掌握课时内重要词汇和短语：take part in,affrd,turn ff,reusable,pay fr,take actin,transprtatin 等。（2) 能够运用现在进行时、现在完成时和被动语态等时态的句子描述环境污染、环境保护和循环再利用。2. 文化意识： 能够用与污染相关的词汇，对环境污染和环境保护进行简单描述。3. 思维品质： 能运用目标语言谈论污染问题，能在实际情景对话中认识解决空气污染和垃圾污染的方法。4. 学习能力：能正确区分和使用以下语法结构：现在进行时、used t、被动语态、现在完成时、情态动词。 立德树人了解环境污染的原因，树立环保意识，培养社会责任感。
It was a lvely fresh spring in the meadw.Yu fund me easily.What are yu lking at?They are dancing thrugh spring flwers.Little Green Wrm has grwn.I haven’t seen ne quite like this befre.Yu must be the best finder.I might be
Pay attentin t the grammar f sentences.
simple past tense一般过去时
present prgressive tense 现在进行时
present perfect tense 现在完成时
Mdal verbs 情态动词
Grammar Fcus
现在进行时: Present prgressive
We’re trying t save the earth.Nw peple are taking actin t save wild animals.The air pllutin is getting wrse and wrse.Lk! The factry is putting waste int the water.
现在进行时表示（说话瞬间）正在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作。
be （am, is, are）+ v. ing (动词的现在分词)
标志性词汇：nw，right nw， Lk， Listen
现在分词的构成：1.一般情况下在动词词尾加-ing。如：g - ging 2.以不发音的e结尾的动词，去掉e加-ing。如：have - having 3.以一个辅音字母结尾的重读闭音节，双写最后一个字母，再加-ing。如：stp - stpping。
现在完成时: Present perfect
N scientific studies have shwn that shark fins are gd fr health.We have seen many changes in the envirnment.He has kept this bk fr ver tw mnths.We have lived here since my little sister was brn.He has already tried this t slve the prblem, but it didn’t wrk.
现在完成时态表示动作已经完成，但对现在造成影响；或者表示从过去某一时间开始一直延续到现在并还可能继续延续下去的动作。
have/has + dne (过去分词)
标志性词汇：already，yet，ever，never，just，befre，nce，twice，recently，s far，fr + 时间段, since + 时间点/从句
过去分词的构成规则：1. 一般情况下，在动词后加-ed。 2. 在以-e结尾的动词后只加-d。3. 在以辅音字母加y结尾的动词，应将y改为i再加ed。4. 以重读闭音节结尾的动词，要双写末尾的辅音字母再加-ed。5. 不规则动词的过去分词
一般情况下，在动词后加-ed。如: wrk → wrked。在以e结尾的动词后只加 -d。如: clse → clsed。在以辅音字母加y结尾的动词，应将y改为i再加ed。如: study → studied。以重读闭音节结尾的动词，要双写末尾的辅音字母再加-ed。如: stp → stpped。不规则动词的过去分词: AAA型 put put put AAB型 beat beat beaten ABA型 becme became becme ABB型 get gt gt/gtten ABC型 begin began begun
被动语态 Passive Vice
The air is badly plluted.The river is plluted by factries.The vide was sent ut quickly and was seen by many schlmates.In the future, rbts will be used by mre and mre peple.Many mre trees shuld be planted by us.
被动语态表示主语是动作的承受者。主动语态表示主语是动作的执行者。
be + dne （过去分词）
一般现在时被动语态：am/is/are + dne一般过去时被动语态：was/were + dne一般将来时被动语态：will be/is ging t be +dne情态动词的被动语态：can/culd/may/might/shuld/must + be + dne
The river used t be s clean.James used t wake up late, but nw he gets up very early.Did Cherry use t live in Shanghai when she was a child?
used t 表示过去常常做某事
否定句：didn’t used t，一般疑问句: Did + 主语 + used t... ?
used t d 表示过去常常做某事 be used t ding 表示习惯于做某事
情态动词 Mdal verbs
We shuld help save the sharks.We shuld take actin t save the earth.Our actins can make a difference.
What can we d t help save the earth?
情态动词通常无人称和数的变化
情态动词有：can/culd 能够；may/might可能、可以；need需要；have t 不得不；wuld 愿意、将要；shall 将（第一人称）; shuld 应该；must 必须
Fill in the blanks with the crrect frms f the verbs in brackets.
Je: _____ yu ever ______ (take) part in an envirnmental prject ?Eric: Yes, I have. I ______ (help) with a Clean-Up Day last year. It was __________ (cnsider) the biggest clean-up prject this city ____ ever ____ (have).
Je: Hw many peple ____ (take) part?Eric: I _____ (think) mre than 1,000 peple ______ (cme) t help ut.Je: That’s fantastic! I guess everyne in this city is ______ (try) t imprve the envirnment.Eric: Yes, we can’t affrd t ____ (wait) any lnger t take actin!
take part in 参加，参与
affrd t支付得起
nt lnger 不再
take actin 行动起来
Fill in the blanks with the apprpriate mdal verbs frm the bx.
can wuld culd have t shuld must may/might
Peple______think that big things ______ be dne t save the earth. Many frget that saving the earth begins with small things. Fr example, yu _______ save electricity by turning ff the lights when yu leave a rm. Yu _____ als use reusable bags instead f plastic bags. I think it’s a great idea that yu nw ______ pay fr plastic bags in sme stres. And instead f driving t schl r wrk, yu _________ ride yur bike r walk. If it’s far, yu ________ take the bus. All these small things ________ add up and becme big things that _______ imprve the envirnment. Let’s take actins nw!
adj. 可重复使用的；可再次使用的
Make a list f things that peple can d t help the envirnment and discuss yur list with yur partner.
use public transprtatin
A:I think that everyne shuld use public transprtatin.B:I disagree. It’s difficult fr parents with yung children t use public transprtatin...
n. 运输业；交通运输
一、用所给单词的正确形式填空
1. Alice，please turn dwn the music，I _______________ an imprtant phne nw.2．His finger __________ by a machine while wrking.3．The number f sharks__________ by ver 90 percent in the last 20 t 30 years.4．Abut 70 millin sharks __________ and traded every year.5．If the numbers f sharks drp t lw，it __________ danger t all cean life.
am answering
was cut ff  
are caught 
6．Have yu ever__________(take) part in an envirnmental club?7．The ld man can't affrd__________(pay) fr the new cmputer at all.8．The students in this schl made the garden a place fr________________ (science) experiments.9．It is difficult fr parents with yung children t use the public_____________(transprt).10．The Clean-Up-Day is regarded as the__________(big) prject in ur schl.
transprtatin
二、根据汉语意思完成句子，每空一词。11．当你出去的时候，不要忘记关灯。 Dn't frget t _________________ the lights when yu g ut.12．你愿意参加校运动会吗？ Wuld yu like t  _________________the schl sprts meeting?13．你买所有这些东西一共花了多少钱？ Hw much did yu  _________________all these things?14．我至今没有收到她的回复。 I have had n reply frm her  _________________．15．我觉得到我采取行动的时候了。 I felt that it was time fr me  _________________．
take part in 
t take actin