Unit-13-SectionA(GF-4c)-同步课件-人教版英语九年级全册-共26张.ppt

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一整只鲨鱼
每次
一碗鱼翅羹
切掉
扔回
不仅......而且.......
对.......有害


链的顶端

来危险

hear of
a whole shark
each time
a bowl of shark fin soup
cut off
throw back into
not only... but also...
be harmful to...
no longer
at the top of the food chain in the ocean's ecosystem
bring danger to all ocean life
be endangered
13. 事实上
14. 被捕杀和交易
15. ......的数量
16. 在过去的20到30年
17. 环境保护组织
18. 比如

20. ......的销售
21. 到目前为止
22. 帮助拯救鲨鱼。
13. in fact
14. be caught and traded
15. the number of
16. in the last 20 to 30 years
17. environmental protection groups
18. such as
19. develop laws
20. the sale of
21. so far
save the sharks!
。
His brother 　　　　20 dollars 　　　　his new shoes.
,它将会给全部海洋生命带来危险。
If their numbers 　　　too low, it 　　　　 danger to all ocean life.
,没有科学研究显示鱼翅对健康有好处,所以为什么吃它们呢?
　　 　　,no scientific studies 　　　　　that shark fins
___________health, so why eat them?
。
Sharks are 　　　　　　　the food chain.
paid for
drop will bring
So far
have shown
are good for
at the top of
spent on
Unit 13 We are trying to save the earth！
Section A (GF-4c)
To learn the words and expressions.
To talk about pollution and environmental protection.
To review present progressive tense, used to, present perfect tense, passive voice and model verbs.
Learning Aims
afford, reusable, transportation, take action, pay for, take part in
Grammar Focus
We’re trying to save the earth.
Present progressive
The river used to be so clean.
used to
The air is badly polluted.
Passive voice
No scientific studies have shown that shark fins are good for health.
Present perfect
We should help save the sharks.
Modal verbs
1. The girls _________(dance) in the classroom.
2. It's 4 o'clock now. John ________(have) a piano lesson.
is dancing
is having
闯关现在进行时
用法：
构成：
标志词：
现在分词构成：
表示说话时(瞬间)正在进行的动作；也表示目前或现
阶段正在进行的动作。
be (am/is/are) + v-ing
look, listen, now, at present, these days, It's +点钟，Where's…?
a.
b.

c.
现在分词的构成规则：
一般在动词词尾﹢ing
read - reading play - playing
以不发音字母e结尾的，去e﹢ing
take - taking write - writing
重读闭音节，以一个辅音字母结尾的，先双写该字母，再﹢ing
stop - stopping get - getting
闯关现在完成时
1. He _________(live) here since 1998.
2. --May I speak to John?
--Sorry, he ________(go) to New York. He'll be back in two days.
3. --_____ you ever ______ to England? -- Yes, twice.
has lived
has gone
Have been
用法：
构成：
标志词：
过去分词构成：
already, ever, never, yet, before, once, twice,recently, so far, in the last two years, for+时间段, since +时间点/从句
表示过去发生或已经完成的动作对现在产生的影响或结果;（不
能与表示具体的时间状语连用）表示过去过去已经开始，持续到
现在的动作或状态(延续性动词)；表示经历或没经历过
have/has + v-ed
规则/不规则
a.
b.

c.
d.
一般在动词词尾﹢ed
offer - offered play - played
以不发音字母e结尾的，直接+d close - closed die-died
重读闭音节,以一个辅音字母结尾的,先双写该字母，再﹢ed
stop - stopped chat - chatted
规则构成：
以辅音字母+y结尾的动词，变y为i +ed study-studied