1、Sandstorms in Asia,Module 4,Reading and vocabulary,Learning ability goals Help students to learn how to describe a phenomenon and express the feeling.Teaching important points 1, Learn some characters and result of the sandstorm.2, Ask students to think ways to protect the environment.Teaching diffi
2、cult points 1, Discuss the answers to the questions.2, Generalize the characteristics of sandstorm.,cycling in a sandstorm,Activity1 Look at these photos and answer these questions.What is happening?What is the cyclist wearing and why?,There is a sandstorm blowing.,They are wearing hoods, masks and
3、Glasses to protect themselves.,What do you think happens to traffic in this situation? Why?What do you think experts advise people to do in this situation?,It moves very slowly. Because it is not clear to Everything on the road and people must take care.,Stay at home.,Activity 2 Match the words with
4、 the definitions,1.To ride a bicycle,2.Some one who knows a lot about a particular subject,cycle,expert,citizen cycle dust expert forecast process situation survive,3. Things that happen one after other,and have a result。,4. Some one who lives in a particular town or country。,citizen,5. Very small b
5、its of dirt or earth on the ground or in the air。,dust,process,citizen cycle dust expert forecast process situation survive,7. To say what will probably happen,8. Everything that is happening at a particular time,forecast,situation,6. To continue to live after a dangeroussituation or event,survive,c
6、itizen cycle dust expert forecast process situation survive,Activity3. Find these words in the passage Choose the correct answer.,1. (b) sand hills 2. (b) to cause a change3. (a) face 4. (a) strong,Activity4. Read Sandstorms in Asia again.Complete these sentences of P33 in the textbook.,1prevent you
7、 from seeing the sun.2he explained a terrible sandstorm.3because of a desertification.4cause deserts and sandstorms to increase.5the drivers cant see.6prevent the desert coming nearer.,Activity5.Complete these sentences using words from the text.,Keys:,1 forecast2 frightening 3survived,4 dust5 proce
8、ss6 cyclist/ citizens,1.prevent 【课文原句】To prevent it coming nearer, the government is planting trees. 【点拨】prevent (from) doing 此处意为“阻止做”，from可以省略。整句话意为“为了阻止沙漠的逼近，政府已经开始植树”。如： Nobody can prevent us marching forward.,Language points,【拓展】类似的还有stop / keep (from) doing 。在keep from doing 中， from不能省去。因为keep
9、 doing 意为“让一直做”。如：The loud noise outside kept / prevented / stopped me from sleeping.The teacher kept me writing these words one hundred times.,2.mass【课文原句】Scientists have tried many ways to solve This problem and in China, a mass Campaign has been started to helpsolve it.,【点拨】mass 在此意为“大规模的”。另外，mas
10、s 还有“大量、大批”的意思，可构成 a mass of 或masses of，既可修饰可数名词，又可修饰不可数名词。整句意为“在中国，科学家们尝试用多种方法去解决这一问题，一场大规模治理沙尘暴的活动已经开始来帮助解决这一问题”。如：Before the rain, the sky had a mass of clouds. Masses of snow and rock broke away and fell on the climbers.,3.survive 【课文原句】You just had to hope youd survive. survive 此处意为“幸存，生还”，为不及物
11、动词, 后可跟介词from或者on。整句意为“你只能希望自己能够幸免”。如：Of all the people in the plane that crashed, only six survived.Many old rules have survived from times.【拓展】 survive当及物动词讲时，意为“经历（某事）而幸存”。如： Few buildings survived the sudden big earthquake. This plant may not survive the frost.,4.cutdown, dig up【课文原句】 This is a
12、process that happens when land becomes desert because of climate changes and because people cut down trees and dig up trees. 【点拨1】cut down此处意为“砍倒”。如：They cut down many old trees and planted some young trees.,【拓展】 cut down还有“消减；删减”的意思。如：Your article is too long, so please cut it down to 500 words.【点拨
13、2】dig up此处意为“从地里挖出（某物）”。如：We dug up the tree by its roots.【拓展】 dig up 还有“掘到，掘出”的意思。 如：An old vase was dug up here last month.,1.for centuries 多个世纪以来2.solve the problem解决问题3.get caught in 被困住4.cut down砍倒；削减5.wake up to 警觉到；意识到6.make it adj/noun to do /clause7.advise sb not to do sth 建议某人不要做某事8.prevent sb from doing sth阻止某人做某事,Important phrases,Writing :,目前，沙尘暴多次肆虐我国，请根据本课所学知识，写一篇关于植树造林，保护环境的文章。,HOMEWORK,
