内容正文:
Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems. Section D Language goals By the end of the class, you will be able to 1.Master the following words ,phrases and sentences: Words: coal, create, blood, planet Phrases: in many ways, high blood pressure, as well Sentences:With the increase in population and the development of industry, litter is everywhere. 2. Tell the differences between Simple Past and Present perfect. Revision in class 1.对...有害 2.不是所有人... 3. 一种... 4. 变聋 5.丧失听力 6.相当多的... 7.据报道.../据说... 8.不比...好 9.在公共场合吵闹 10.不但...而且.. 11.造成某人做某事 12. 尽力做某事 13.解决问题 14.各种各样的- 1.be bad for...=be harmful to...=do harm to... 2.Not all people... 3. a kind of... 4. go/become deaf 5.lose one's hearing = have hearing loss 6.quite a few + 可数n.复数quite a little+不可数n. 7.It's reported/said that... 8.no better than...= as bad as/ as badly as 9. make loud noise in public 10. not only...but also... 11. cause sb to do sth 12. try to do sth 13.solve problems 14.all sorts/kinds of Grammar I _ (go) there two years ago. There _ (be) lots of flowers and grass. What _ (happen) here? I have _ (be) like this since last week. The flowers and grass _ (go)! been were has happened have gone went Simple Past &Present Perfect 一般过去时和现在完成时的用法区别 一般过去时 现在完成时 用法 连用的词和短语 表示过去发生或已完成的动作 对现在的影响或产生的结果(与现在无关) 表示过去发生的动作或存在的状态(与现在无关) yesterday, last + 时间名词, 时间段+ ago, in 2005, in the past, just now … for +时间段, since, recently,so far, already, yet, just, ever, never, before in the past +时间段, Oh, what a _! There are several chemical factories _ waste water into the stream. What’s _, the factory makes too much noise… Noise is _ to human’s health. People who work and live in noisy conditions often _ deaf. …many teenagers in America can hear no _ than 65-year-old people do, … …does great _ to people’s hearing. Functions shame pouring worse go harmful better harm ( ) 1. What is the passage mainly about? A. Air pollution. B. Light pollution. C. Litter. D. All sorts of pollution. ( ) 2. _ destroy(s)