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《Save the Tigers》Animals Are Our Friends PPT下载

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《Save the Tigers》Animals Are Our Friends PPT下载 详细介绍:

《Save the Tigers》Animals Are Our Friends PPT下载《Save the Tigers》Animals Are Our Friends PPT下载《Save the Tigers》Animals Are Our Friends PPT下载

《Save the Tigers》Animals Are Our Friends PPT下载

第一部分内容:Language knowledge

掌握词汇: 

century,courage,brave,r eason,kill,cut(cut,cut)

接触词汇:

fur,symbol,chain,balance,disappear,decrease

短语和句型:

at the beginning of...,  drop to, food chain, in danger,  cut down,  as well

... ... ...

Save the TigersPPT,第二部分内容:vocabulary

century [ˈsentʃərɪ] fur [fɜː] n. 世纪

symbol ['sɪmb(ə)l] n. (兽类的)毛

courage ['kʌrɪdʒ] n. 标志,象征

brave [breɪv] n. 勇气,胆量 adj. 勇敢的,无畏的

chain [tʃeɪn] n. 链子;链条

balance ['bæləns] n. 平衡,平稳

reason ['riːzn] n. 原因,动机,理由

disappear [dɪsə'pɪə] v. 消失,失踪

kill [kɪl] v. 杀死

cut [kʌt] v. 砍,切,剪,割

decrease [dɪ'kriːs] v. 使……变小;减少

... ... ...

Save the TigersPPT,第三部分内容:Structures and Expressions

at the beginning of...,  在...之初

drop to,   下降到;跌至

food chain,   食物链

in balance   保持平衡

in danger,  处于危险状态

cut down,  把...砍倒;减少

as well  (除某人或某事外)还;也

... ... ...

Save the TigersPPT,第四部分内容:knowledge points

1.At the beginning of (在…之初) the 20th century, the number of (...的数目,数量) tigers in the wild was around 100 000 .

at the beginning of...   意为“在...之初”,其后常接表示时间的词。

例句:我们四月初要去美国。

We're going to USA at the beginning of April.

century   n.    世纪

复数:centuries    

第...世纪:the + 序数词 + century

例句:这座大楼是19世纪建造的。

The building was built in the 19th century.

在某世纪某年代:in the+年代+of+the+序数词+century 

例句:我的姐姐出生在20世纪80年代。

My sister was born in the eighties of the twentieth century.

=My sister was born in the 1980s.

the number of     意为“...的数量”   

the number of + 可数名词复数形式。

作主语时谓语动词要用单数形式。

例句:房间里的学生数是43.

The number of the students in the room is 43.

辨析:a number of 表示“若干,很多”,相当于many

a number of + 复数名词 

例句:许多孩子在公园里。

A number of children are in the park.

... ... ...

Save the TigersPPT,第五部分内容:Try to be excellent!

Fill in the blanks.

1. _____________ students is about twenty. (……的数量)

2. It’s ____________ your health. (对……是重要的)

3. The river is polluted and ___________ going dry.(处于……危险中)

4. _________________ the party, he gave me a gift. (在……之初)

5. The temperature has __________ below zero. (下降到)

6. It is at the bottom of the _________. (食物链)

7. You know, computers bring troubles _______. (也)

... ... ...

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