初中英语人教新目标 (Go for it) 版八年级下册Unit 7 What’s the highest mountain in the world?Section B教学演示ppt课件

 Unit 7  What’s  the  highest  mountain  in  the world?

第三课时Section B(2a-2e) 

【Free talk】What do you know about pandas?

【学习目标】

1. 学习下列单词：weigh, bamboo, research, awake, excitement, illness, adult, remain, wild, government, whale, oil, huge

2. 学习下列短语：at birth, stand on two legs, eat 150 kilos of food a day, more than, live up to…years, be awake, run over, walk into their friends, fall over, take care of, play with, be special to sb. die from illness, cut down, in the remaining forest, endangered animals, send…to…, the importance of, one way to do sth., one way of doing sth., in the future, prepare breakfast for sb., because of, fewer and fewer pandas,

3.学习下列重点句子：

This elephant weighs many times more than this panda.

Adult pandas spend more than 12 hours a day eating about 10 kilos of bamboo.

We all hope that in the future there will be a lot more pandas than now.

Another reason for fewer and fewer pandas is because people are cutting down the forests so pandas have fewer places to live.

【导学案】

一、阅读2b，写出下列短语：

1. 醒来__________　2. 跑过来_____________ 3. 摔倒______4. 照顾___　

5. 对某人很特别________6.死于疾病________7.砍到_________8.濒危动物_________

9…..的重要性________10.在将来________

二、翻译下列句子。

1.大象比熊猫重很多倍。

__________________________________________________________________

2.成年熊猫一天要花12多个小时吃大约10千克竹子。_________________________________________

3我们都希望将来比现在有更多的熊猫。_____________________________________________________

4、熊猫越来越少的另一个原因是人们不停地砍伐森林以致熊猫们无处可生存。

   ___________________________________________________________________

【课中案】

一、自主学习

１.　结合课本第54页，有表情地朗读课文，并注意句子的重音；

２.　完成2c,2d, 2e.

二、合作探究，质疑解惑

★重点词语

1. way   n. 方式，方法

  【要点探究】 

the way to do sth. /the way of doing sth. 做某事的方式、方法

in this way 用这种方法

如：The best way to learn English is to read aloud. 学英语的最好方法是大声朗读。

★拓展：way 还表示路、道路

on one’s way to… 在某人去……的路上

by the way 顺便问一下

in the way 挡道的，妨碍人的

Come this way, please. 请走这边。精题演练】 

   （1）The best way _______ your English is ______ an English club.

       A. improve, join          B. to improve, join

       C. of improving, to join     D. improving, to join

   解析：the way to do sth. /the way of doing sth. 做某事的方式、方法。提高你英语的最佳方法是加入英语俱乐部。

   （2）—Can you tell me the ______ to the post office?

        —Sure.

       A. price   B. way   C. time   D. ticket

  解析：the way to … 去某地的路。你能告诉我去邮局的路吗？当然。

2. because / because of

【要点探究】

because 是连词，其后接句子；

because of 是复合介词，其后接名词、代词、动名词、what 从句等。

如：I didn’t buy it because it was too expensive. 我没有买是因为它太贵了。

He is here because of you (that). 他为你(那事)而来这里。

He lost his job because of his age. 由于年龄关系他失去了工作。

We said nothing about it, because of his wife’s being there. 因为他妻子在那儿，我们对此只字未提。

He knew she was crying because of what he had said. 他知道她哭是因为他说的话。

注：because of 之后可接 what 从句，但不能接 that 从句或没有引导词的句子。

【精题演练】

I didn't go to school because of ________.

    A. I was ill    B. ill    C. my illness   D. I illness

    解析：because of 是复合介词，其后接名词等。我因病没去上学。

3. fewer and fewer pandas

【要点探究】“比较级and比较级”或“more and more+多音节词adj的原级”，译为“越来越…”

【精题演练】Our country is becoming ______.

A. stronger and stronger        B. strong and strong

C. more and more stronger          D. strong and stronger

解析：“比较级and比较级” 译为“越来越…”。我们的国家变得越来越强大。

拓展：：“the +比较级，the+比较级”，译为 “越是…就越…”

【精题演练】The _____ you eat, the ______ you’ll become.

A. much; heavy    B. more; heavy    C. much; heavier     D. more; heavier

解析：你吃的越多，就会变得越胖。

★经典句型

1. Adult pandas spend more than 12 hours a day eating about 10 kilos of bamboo. 成年熊猫每天花费多于12个小时的时间来吃大约10千克的竹子。

【要点探究】 

take/ spend /cost /pay的用法都可以表示“花费”，但用法却不尽相同。

①spend的主语必须是人， 常用于以下结构：

(1) spend time ／money on sth. 在……上花费时间（金钱）。

例：I spent two hours on this maths problem. 这道数学题花了我两个小时。

(2) spend time ／money (in) doing sth. 花费时间（金钱）做某事。

例：They spent two years (in) building this bridge. 造这座桥花了他们两年时间。

②cost的主语是物或某种活动， 还可以表示“值”， 常见用法如下：

Sth. costs (sb.) ＋金钱,  某物花了（某人）多少钱。

例：A new computer costs a lot of money. 买一台新电脑要花一大笔钱。

注意：cost的过去式及过去分词都是cost,并且不能用于被动句。

③take后面常跟双宾语， 常见用法：

It takes sb. ＋时间＋to do sth. 做某事花了某人多少时间。

例：It took them three years to build this road. 他们用了三年时间修完了这条路。

④pay一般是人做主语，基本用法是：

Sb. pay money for sth. 付钱（给某人）买……。

例：I have to pay them 20 pounds for this room each month. 我每个月要付20英磅的房租。

  【精题演练】 

   They spent three month _______ Europe.

       A. tour    B. to tour   C. touring   D.  toured

解析：spend time ／money (in) doing sth. 花费时间（金钱）做某事。

他们花了三个月时间周游欧洲。

  2. We all hope that in the future there will be a lot more pandas than now. 我们都希望将来熊猫会比现在多得多。

【要点探究】a lot在此处修饰的是比较级more. 修饰比较级的还有much, a little, a bit, even, far, still。

【精题演练】The picture looks _____ better than the real thing.

   A. more     B. a lot      C. a few     D. very

★重点语法

倍数表达法

【要点探究】 

   1、A与B的倍数

(1) A是B的……倍:  A＋谓语 + 倍数 + _as adj.(原级) as + B

如：Asia is four times as large as Europe. 亚洲是欧洲的四倍大。

(2) A比B多……倍:  A＋谓语+_倍数 +_比较级than_+_B

如：This elephant weighs many times more than this panda. 大象比熊猫重许多倍。

【精题演练】 

（1）The road is _______ that one.

 A. two times as wide as   B. twice as wide as   C. twice so wide as   D. wider twice than

解析：A是B的……倍:  A＋谓语 + 倍数 + _as adj.(原级) as + B. 这条路是那条的两倍宽。

（2）Our school is _____________ yours.

A. twice bigger than    B. bigger twice than    C. two times bigger than

解析：A比B多……倍:  A＋谓语+_倍数 +_比较级than_+B. 我们的学校比你们的大两倍。

【精题演练】

1. Tom是Jack的两倍高. ________________________________________________
2. 这条河是那条河的三倍长。This river is three times _____  _______  ________ that one .

【课后案】

一、短文填空

   Pandas do not have many babies, maybe only one every two years. The babies often die f______ illness and do not live very long. Adult pandas s______ more than 12 hours a day eating about 10 kilos of bamboo. Many years ago, there were a lot more b______ forests and pandas in China, but then humans started to c_______ down the forests. Scientists say there are now f______ than 2000 pandas living in the r________ forests. Another 200 or so live in zoos or research centers in China and other countries.

   An education program in Chengdu teaches children in cities about pandas and other e________ animals. They send people to schools to tell children about the i________ of saving these animals. The children sing songs or make artwork about pandas and other wild animals. Teaching children is one way t____ help save pandas. The Chinese g______ is also planting more bamboo trees so there will be more forests for pandas to live in. We all hope that in the future there will be a lot more pandas than now.

二、单项选择

1. The girl has become _____.

A. beautiful and beautiful      B. beautifuler and beautifuler

C. more beautiful and more beautiful             D. more and more beautiful

2. We should try our best to protect children _______ danger．

A. from    B. of     C. over   D. to

3. The new building is ______ than the old one.

  A. as twice as high  B. higher twice     C. twice higher    D. as higher as twice

4. A tiger is _____ stronger than a man.

A. much   B. more    C. very   D. a lot of

5. We should call on people to ___________ rubbish into the sea.

  A. stopping putting     B. stop putting    C. stop to put    D. stopping to put

三、根据所给首字母或汉语提示完成单词。

1. B__________ are panda’s favorite food.

2. The elephants w_______ many times than the pandas.

3. Now there are fewer than 2,000 pandas living in the r________ forests.

4．The old man gave much money to the medical _________(研究).

5. The Chinese ___________(政府) is planning many policies to save pandas.

四、完成句子/根据要求完成（或改写）句子。

1. The babies often _______ ________ _______(死于疾病) and do not live very long.

2. Adult pandas ______(花费) ______ _______(多于) 12 hours a day _______ (吃) about 10 kilos of bamboo.

3. Teaching children is _____ _____ ______ (……的一种方法) help save pandas.

4. They send people to schools to tell children about ____ _______ _____ (......的重要性) saving these animals.

5. Many years ago, there were ___ ______ ______ (多得多) bamboo forests and pandas in China, but then humans started to _______ ______ (砍伐) the forests.