1、Unit2 Topic3 SectionD 精品学案【预习导纲】在SectionA-C中找出Grammar及Functions中的句子并补全句子【课堂导学】找出下列各句，然后尝试分析。1、 It needs its forest to remove carbon dioxide from the air and to make oxygen.它需要森林吸收空气中的二氧化碳，制造氧气。点拨： 1、remove sth from “把从中消除/去掉”。2、need sth to do sth 需要某物去做某事。拓展：need to do sth 需要去做某事。 need doing sth需要（被
2、） 。2.The weather may be very hot and dry or it may be very cold and wet.天气可能太热，也有可能又冷又湿。点拨：or 表示“或者” 拓展：Hurry up, or youll be late . 此句的“or”表示“否则”3.They plant different types of trees so that birds and animals can live in the forests. 他们种植了不同种类的树，因此鸟类和动物能够居住在森林里。思考：so that 意为“目的是，为的是”，引导_状语从句。（目的 /
3、结果）【复习自测及课后作业】 ( )1.Students ought _ the truth.A. to tellB. tellC. tellingD. told( )2.He is tall, _ his son is short.A. whenB. orC. whileD. and( )3.If we travel a short distance, we should walk _ taking a bus. Then we ll be greener people. A. instead ofB. ratherC. whileD. but( ) 5. I always enjoy visiting London, _ I wouldnt like to live there. A. because B. so C. but D. and ( ) 6. Help others whenever you can _ youll make the world a nicer place to live in. A. or B. and C. but D. while
