山东省淄博市淄川般阳中学高中英语 Module 4 Sandstorms in Asia Language points学案（无答案）外研版必修3.doc

module 4 sandstorms in asia language points学习目标：学习和掌握本模块重点词汇、短语和句型的应用；完成有关的练习；学习重点：词汇与短语的运用和掌握，并能加以运用。学习难点：so 引导的倒装句， 动词不定式做主语， appear，mass词汇用法学法指导：借助字典等工具书，独立思考，组内讨论、对比，总结归纳重点知识点【学情调查、情景导入】根据课本p31，补全句子并翻译。1.a sandstorm was very _(frighten).the wind_(blow) the sand high around the houses, and some cars were almost completely _(bury) by the sand. _2.deserts are _(create) because people _(cut) down trees and _(dig )up grass._3. what should you do in a sandstorm to_ ( protect ) yourself?_have a try ,please!【问题展示、合作探究】1. cut down 1）砍倒； 2）减少，降低读例句，体会用法：1）many big trees along the road have been cut down for building houses. 翻译： _。 2）the doctor advised my father to cut down smoking.翻译：_拓展：1）大量的竹子已经被砍倒了翻译： _2）last week our electricity was cut off. _3）cut up the meat and well make some dumplings. _4）please cut an article out of the newspaper. _归纳：cut off（切断） cut up 切碎 cut out of 裁出来2.dig up 掘出、挖出 （过去时 dug 过去分词 dug ）he was lucky enough to dig up a valuable old pot in the field.翻译：_-。3.protect vt. 保护，警戒you need warm clothes to protect you against the cold._ the driver was wearing dark glasses to protect himself from the sun.司机带着眼镜以保护眼睛不受阳光刺激。protect.from/ against _4. a major disaster_major adj. 主要的，重要的； （专业课程中）主修的 n. (大学里的)主修科目，专业； 某专业的学生 vi. 主修（某专业）a major cause 主要原因 the major subjects主修课程 练习： the major challenge of this country is to feed so many people._ he majors in chemistry. 她主修化学。 major in_拓展：majority n.多数，大多数“the majority + of + 名词 ”做主语，谓语动词的单复数由介词of 后面名词的单复数决定。one- third of the country _ covered with trees and the majority of the citizens _ black people. a is; are b is; is c. are; are d. are; is 5 . start a mass campaign_ mass adj. 民众的，群众的；大规模的（仅用于名词前） 读例句，体会用法1)there are masses of ice in the river. _2) there is a mass of children in the yard. _短语归纳：a mass of/ masses of _ a mass of +复数名词/不可数名词 （做主语，谓语动词用单数） masses of +复数名词/不可数名词 (做主语，谓语动词用复数)6.they are often so thick that you can not see the sun, and the wind is sometimes strong enough to move sand dunes. _.(1)so.that.如此，以至于，引导结果状语从句模仿造句：他是一位如此好的老师以至于同学们都喜欢他。_拓展：so.that.结构中，so +adj./adv.放句首时，句子要用半倒装语序。如：so tired were they that they could not walk any further.模仿造句：这个男孩如此害怕，以至于他不知道该做些什么。_（2）enough adv.充足的，足够做.的 常用结构：adj./adv.+ enough + to do 这个塑料袋不够大，装不下这么多东西。the plastic bag is no_so many things. 常用结构 enough +n. + to do 或 n. + enough+ to do.我们有足够的时间来阅读这些参考书。we have_ the reference books.7.to have been caught in a sandstorm was a terrible experience. _(1) to have down sth.结构是动词不定式的完成式，表示不定式短语动作发生在主句谓语动词之前。在此句中to do结构做主语to have been punished was an unforgettable experience._ _体会下文例句： to be cycling in a sandstorm is frightening._(2) be caught in 被困在（某种状况中）, 遭遇（风，雨，雪等）我们的车被大雪困住了。_8.sandstorms in china appear to have increased in recent years as a result of “desertification”. _appear vi. （1）出现 反义词:_the sun appeared in the east._.(2)看起来，似乎 常用句式appear (to be ) appear to do it appears that.他只有四十岁，但是看上去很老。 he is only forty, but _ 我似乎觉得你们都错了。 _ _ _ _ _ you are all mistaken.9 . wake up to 发觉； 认识到；意识到 拓展：wake up 醒来；叫醒读例句，体会用法：the drivers must wake up to the danger of drunk driving. 翻译：_they were so tired that they did not wake up until the next morning. 翻译：_ lets work together!think and discuss!bebrave to show yourself! come on,boys and girls!practice makes perfect【达标检测、归纳总结】用本节课中学的知识点完成下列句子。1.this factorys production _.(减少)2.he is likely to _it in the future.（主修)3.tom _and was late for work. 汤姆遇上堵车，上班迟到了。4.tom was late for school yesterday because his mother didnt wake him up on time。 翻译_5.so thick_ the sandstorm that we could not see the roads.6. 为