英语：必修3Module4 Sandstorms in_Asia-Reading课件(外研版)

1、Pre-reading hat is happening?Sandstorm, thick wind, blow, desertificationModule4Module4Sandstorms in AsiaSandstorms in AsiaWhat are the cyclists and the walkers wearing and why?Masks, glasses, hoods(风帽风帽)What do you think happen to traffic in this situation? Why?People drive slowly. Because it is no

2、t clear to see everything. mass adj. 大规模的大规模的 n. 团，块，堆团，块，堆 a mass of =masses of 许多，大量许多，大量 the masses a mass campaign a mass of clouds /hot air 群众群众大型战役大型战役一团云一团云/一团热气一团热气 2.be caught in 被困于被困于,碰到碰到 He was late for work yesterday afternoon because he was caught in the traffic jam. He was once caugh

3、t in a snowstorm for several days. 因为交通堵塞，他昨天下午上班迟到了。因为交通堵塞，他昨天下午上班迟到了。他曾经在暴风雪中困了好几天。他曾经在暴风雪中困了好几天。3. appear v. 1）出现，出版，发行）出现，出版，发行 His book will appear in the bookshop next week. A smile appeared on his face when he heard the good news.2) 看起来，似乎。看起来，似乎。 系动词系动词 She appeared very tired. She appears t

4、o want to leave. 他的书下星期在书店发行他的书下星期在书店发行 当他听到这个好消息，脸上露出了笑脸。当他听到这个好消息，脸上露出了笑脸。她看起来很累。她看起来很累。她似乎想离开。她似乎想离开。Note: keep sb. from doing 中中from 不可以省略，因为不可以省略，因为keep sb. doing 意为：让某人一直做某事。其他两个词组中意为：让某人一直做某事。其他两个词组中from省略后意思不变省略后意思不变 Im sorry to keep you waiting so long. We must keep him from complaining all

5、 day. Prevent somebody from doing, stop somebody from doing, keep somebody from doing 阻止某人做某事阻止某人做某事很抱歉让你等这么久。很抱歉让你等这么久。我们必须阻止他整天抱怨。我们必须阻止他整天抱怨。1. What are sandstorms?2. Where do sandstorms occur often?3. Why have sandstorms increased in China?4. Who appear in this text?5. When sandstorms happen, wh

6、at the weather look like?6.How can the sandstorms be prevented?Sandstorms are strong, dry winds that carry sand.Central Asia, North America, Central Africa and Australia.Sandstorms appear to have increased in recent years as a result of desertification.Ren Jianbo and HuangXiao mei.We will see an ora

7、nge sky and strong winds that cover the city in a thick, brown-yellow dust. A mass campaign has been started to help solve it and the government is planting trees.Careful reading Sandstorms begin in _ _. Sandstorms _ _have increased _ _ _ _ desertification, which happens when land becomes desert _ _

8、 climate changes and because people_ _ trees and _ _ grass. Ren Jianbo described a _ sandstorm he _ : “It was the most _and the most_ situation.” Huang Xiaomwei says,“_ _ _ in a sand storm is _. It is difficult to _ in the strong wind.” Citizens _ _ to an _ sky and strong winds that _ the city in a

9、_, _ dust. In that situation, traffic _ _ _because the thick dust _ _ _to see. Weather experts _ people _ _ go out when a sandstorm arrives. If you want to go out, you _ _ _ a mask. Scientist have _ _ _to _ the problem and a _ has been started. To _ it _ nearer, the government is planting trees and

10、plans to _ planting for the next five years. desert areasappear toas a result ofbecause ofcut downdig upterribleexperiencedfrighteningdangerousTo becyclingfrighteningbreathewake uporangecoverthickbrown-yellowmovesvery slowlymakesitdifficultadvisenot towouldbetter weartried manywayssolvemasscampaignpreventcomingcontinueGroup work I will divide you into two groups. I will choose one directorfrom each group. The director chooses a journalist, anexpert in weather, an official in the government, Ren Jianbo,Huang Xiaomei and a citizen in the sandstorm from your group after discussing