1、Unit4 Our WorldTopic1 Which do you like better,plants or animals? Section C一、话题导学：（学习目标）1. Learn some new words and phrases:thick, forest, ground, wet, cover, earth, surface, thousands of, control, die out, wood, protect2. Go on learning the structure of comparative and superlative degrees of adject
2、ives:(1) The plants in the forests help to make the air fresher and cleaner.(2) Rainforests give us wood, food, fruit, medicine, and many more useful things.(3) But now, rainforests are becoming smaller and smaller, so we should protect them.3. Talk about the basic situation about the water resource
3、 and tropical rain forests and their importance to the earth.二、预习导纲：1、单词互译与记忆1) 茂密的_2) 森林_ 3）覆盖_ 4) ground_5) surface_ 6) control_ 7) protect _2、短语互译与记忆 1) 成千上万 _ 2) 地球的肺 _3) 越来越小_ 4) 在 方面起重要作用_5) 灭绝_3、句子理解与熟读(1).Rainforests cover 6% of the earths surface.(2)Thousands and thousands of animals live i
4、n the rainforests.(3) The plants in the forests help to make the air fresher and cleaner.(4) They play an important part in controlling the climate.(5) Without rainforests , many beautiful plants and animals would die out.三、课堂导练：1、选词填空control, cover, beautiful, easy, protect1) Water_most of the eart
5、h.2) Forests can help to make the air fresher. They also help to_the weather.3) We should _ environment to make our cities more beautiful4) Lesson 5 is _than Lesson 65) This rose is _than that one.2. 单项选择。( ) 1. _ watches the Beijing Olympic Torch Relay in Zhengzhou.A. Thousands people B. Thousands
6、of peopleC. Ten thousands people D. Thousand of people( ) 2. Five _ people are waiting for the train.A. hundred of B. hundreds C. hundred D. hundreds of( ) 3. The snake is one of _ in the world.A. the most dangerous animal B. dangerous animalC. the most dangerous animals D. more dangerous animals( )
7、 4.The number of wild animals is becoming _A. much more small B. much more smaller C. smaller and smaller D. small and small( ) 5. The girl is _than the other girls.A. more careful B. much careful C. the most careful D. careful四、复习自测：完形填空 As we know, Kangaroos live only in _1_. There are more than f
8、ifty _2_ of kangaroos. The smallest kangaroos are about a quarter of a meter _3_ and the biggest ones are _4_ than a man. Kangaroos have very _5_ back legs. They use their back legs for _6_. They also have strong tails, used for resting _7_. Mother kangaroos are about a pocket at the _8_. They have
9、one baby _9_ year. When the baby was _10_, it goes into the pocket and stays there for six months.( ) 1. A. America B. Australia C. China D. Austria ( ) 2. A. kind B. kinds C. hundred D. hundreds ( ) 3. A. wide B. high C. big D. tall ( ) 4. A. taller B. tall C. the tallest D. tallest ( ) 5. A. good
10、B. nice C. small D. strong ( ) 6. A. run B. swim C. jumping D. sleeping ( ) 7. A. on B. at C. in D. with ( ) 8. A. back B. front C. head D. foot ( ) 9. A. two B. each C. three D. both ( ) 10. A. out B. born C. in D. coming 五、课文解读：(1) They provide place to live for thousands of plants and animals fou
11、nd nowhere else on Earth. 它们为数千种动植物提供了生存场所，这些动植物是地球上其他地方所没有的。(2) Thousands and thousands of animals live in the rainforests.成千上万的动物生活在热带雨林。thousands and thousands of 成千上万的，(类似用法的有 hundred, million, billion);注意当这些词与具体数词连用时不用复数形式，如： five thousand, six hundred.(3) Many of them live in the trees over 30
12、 meters from the ground. 它们中有许多居住在离地面三十米多高的树上。over 相当于 more than.(4）They play an important part in controlling the climate.它们对调节气候起到重要的作用。play a part in (sth/ doing sth) 意为“（在某事中）起作用”(5）Rainforests give us wood, food, fruit, medicine, and many more useful things.热带雨林带给我们木材、食物、水果、药物和许多更有用的东西。more use
13、ful 更有用的意思，是 useful的比较级。双音节词和多音节词前面加 more 或者 most 构成比较级和最高级beautiful more beautiful most beautiful(6）But now, rainforests are becoming smaller and smaller, so we should protect them. 但是，现在热带雨林变得越来越小了,所以我们应该要保护它们。smaller and smaller 越来越小 “形容词比较级 and 形容词比较级 ”结构表示：“越来越.”比较：“the 形容词比较级，the 形容词比较级”结构表示：“越 , 就越”六、评价内容 等级 自评 小组长评价预习情况 A B C D课堂表现 A B C D小组合作 A B C D
