Unit7What’sthehighestmountainintheworld?第三课时SectionB(2a-2e)?

详细内容

ing ______.
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 bee.
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 puter 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 bee _____.
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.