| 行业类别 | 格式 | 大小 |
|---|---|---|
| 人教版九年级英语下册 | pptx | 6 MB |
描述
《We're trying to save the earth!》PPT课件3
Fill in the blanks with the correct forms of the verbs in brackets.
Joe: _____ you ever _____ (take) part in an environmental project?
Ken: Yes, I have. I ______ (help) with a Clean-Up Day last year. It was________(consider) the biggest clean-up project this city____ever ________(have).
Joe: How many people ______ (take) part?
Ken: I _____ (think) more than 1,000 people _____(come) to help out.
Joe: That’s fantastic! I guess everyone in this city is _____ (try) to improve the environment.
Ken: Yes, we can't affort to _____ (wait) any longer to take action!
... ... ...
现在进行时
（1）含义：①表示现在正在进行的动作。②表示现阶段一直进行的动作。
（2）基本结构：am/ is/are + 现在分词
（3）标志词：now, right now, Look, Listen at present, this week, these days
（4）现在分词的构成：
①一般情况下在动词词尾加-ing。如：go--going。
②以不发音的字母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：stop--stopping。
... ... ...
现在完成时
（1）含义：
①表示过去发生的动作，对现在造成的影响。
②表示过去发生的动作或存在的状态一直延续到现在，还可能继续下去。
（2）基本结构：have / has + 过去分词
（3）标志词：already, yet, ever, never, once, twice, recently, so far,
for+时间段, since+时间点/从句，
in the past + 时间名词，
in the last +时间名词。
（4）过去分词的构成：
①一般情况下在动词词尾加-ed。如：work--worked。
②以e结尾的动词后只加-d。如：close--closed。
③以辅音字母+y结尾的动词，应将y改为i再加ed。如：study--studied。
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。如：stop--stopped。
⑤不规则动词的过去分词：AAA型；AAB型；ABA型；ABB型；ABC型。
... ... ...
被动语态
初中阶段我们学习了8种被动结构，归纳如下：
（1）一般现在时的被动式：am / is / are + 过去分词
（2）现在完成时的被动式：have / has + been + 过去分词
（3）现在进行时的被动式：am/ is/ are + being + 过去分词
（4）一般过去时的被动式：was / were + 过去分词
（5）过去进行时的被动式：was / were + being + 过去分词
（6）过去完成时的被动式：had + been + 过去分词
（7）一般将来时的被动式：will / be going to be+ 过去分词
（8）含有情态动词的被动式：情态动词+be +动词的过去分词。
... ... ...
情态动词练习
1.-- ____ you pass me a pen? I'd like to write down the phone number.
-- Sure. Here it is.
A.Can B.Need C.Might D.Must
2. -- May I go to the cinema, Mum?
-- Certainly, but you ___ be back by 11 o'clock.
A.can B.may C.must D. need
3. you ___ worry about me. It's nothing serious.
A.can't B.mustn't C. needn't D. won't
4. -- Excause me. Is this the right way to the Summer Palace?
-- Sorry, I'm not sure. but it ____ be.
A.might B.mustn't
C.can't D.must
5. The man in the office ____ be Mr.Black, because he went home just now.
A.musn't B.may not
C.can't D.needn't
... ... ...
I. 用所给词的适当形式填空。
1. The old man used _____ (be) a teacher.
2. We should _____ (clean) the room every day.
3. Look! Tom _________ (sleep) in his room.
4. Lots of trees __________ (plant) on the hill every year.
5. He _________ (live) here for 20 years.
用括号里所给动词的正确形式填空
1. The girl ___________(dance) in the classroom.
2. It's 5 o'clock now. Mike _________ (have)dinner.
3. --_____ you ever ____ (be) to the US?
-- Yes, twice.
4. -- May I speak to John?
-- Sorry, he __________(go) to New York. he will be back in two days.
5. --Did you go to Jack's birthday?
-- No,I ______________(not invite).
... ... ...
Fill in the blanks with the appropriate modal verbs from the box.
can could would have to should must may/might
People _____ think that big things _____ be done. However, many forget that saving the earth begins with small things. For example, you _____ save electricity by turning off the lights when you leave a room. You _____ also use paper or reusable bags instead of plastic bags.
Homework
write an article to show in what way we students can protect the environment.
关键词：《We're trying to save the earth!》教学课件，人教版九年级下册英语课件，九年级英语幻灯片课件下载，《We're trying to save the earth!》PPT课件下载，.ppt格式
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文件信息
更新时间: 2024-09-29
所属频道：人教版九年级英语下册
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