Module 4 Sandstorms in Asia Language points學習目標：學習和掌握本模塊重點詞匯、短語和句型的應用；完成有關的練習；學習重點：詞匯與短語的運用和掌握，并能加以運用。學習難點：so 引導的倒裝句， 動詞不定式做主語， appear，mass詞匯用法學法指導：借助字典等工具書，獨立思考，組內討論、對比，總結歸納重點知識點【學情調查、情景導入】根據(jù)課本P31，補全句子并翻譯。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!【問題展示、合作探究】1. cut down 1）砍倒； 2）減少，降低讀例句，體會用法：1）Many big trees along the road have been cut down for building houses. 翻譯： _。 2）The doctor advised my father to cut down smoking.翻譯：_拓展：1）大量的竹子已經(jīng)被砍倒了翻譯： _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. _歸納：cut off（切斷） cut up 切碎 cut out of 裁出來2.dig up 掘出、挖出 （過去時 dug 過去分詞 dug ）He was lucky enough to dig up a valuable old pot in the field.翻譯：_-。3.protect vt. 保護，警戒You need warm clothes to protect you against the cold._ The driver was wearing dark glasses to protect himself from the sun.司機帶著眼鏡以保護眼睛不受陽光刺激。protect.from/ against _4. a major disaster_major adj. 主要的，重要的； （專業(yè)課程中）主修的 n. (大學里的)主修科目，專業(yè)； 某專業(yè)的學生 vi. 主修（某專業(yè)）a major cause 主要原因 the major subjects主修課程 練習： The major challenge of this country is to feed so many people._ He majors in chemistry. 她主修化學。 major in_拓展：majority n.多數(shù)，大多數(shù)“the majority + of + 名詞 ”做主語，謂語動詞的單復數(shù)由介詞of 后面名詞的單復數(shù)決定。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. 民眾的，群眾的；大規(guī)模的（僅用于名詞前） 讀例句，體會用法1)There are masses of ice in the river. _2) There is a mass of children in the yard. _短語歸納：a mass of/ masses of _ a mass of +復數(shù)名詞/不可數(shù)名詞 （做主語，謂語動詞用單數(shù)） masses of +復數(shù)名詞/不可數(shù)名詞 (做主語，謂語動詞用復數(shù))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，引導結果狀語從句模仿造句：他是一位如此好的老師以至于同學們都喜歡他。_拓展：so.that.結構中，so +adj./adv.放句首時，句子要用半倒裝語序。如：So tired were they that they could not walk any further.模仿造句：這個男孩如此害怕，以至于他不知道該做些什么。_（2）enough adv.充足的，足夠做.的 常用結構：adj./adv.+ enough + to do 這個塑料袋不夠大，裝不下這么多東西。The plastic bag is no_so many things. 常用結構 enough +n. + to do 或 n. + enough+ to do.我們有足夠的時間來閱讀這些參考書。We have_ the reference books.7.To have been caught in a sandstorm was a terrible experience. _(1) to have down sth.結構是動詞不定式的完成式，表示不定式短語動作發(fā)生在主句謂語動詞之前。在此句中to do結構做主語To have been punished was an unforgettable experience._ _體會下文例句： To be cycling in a sandstorm is frightening._(2) be caught in 被困在（某種狀況中）, 遭遇（風，雨，雪等）我們的車被大雪困住了。_8.Sandstorms in China appear to have increased in recent years as a result of “desertification”. _appear vi. （1）出現(xiàn) 反義詞:_The sun appeared in the east._.(2)看起來，似乎 常用句式appear (to be ) appear to do It appears that.他只有四十歲，但是看上去很老。 He is only forty, but _ 我似乎覺得你們都錯了。 _ _ _ _ _ you are all mistaken.9 . wake up to 發(fā)覺； 認識到；意識到 拓展：wake up 醒來；叫醒讀例句，體會用法：The drivers must wake up to the danger of drunk driving. 翻譯：_They were so tired that they did not wake up until the next morning. 翻譯：_ Lets Work Together!Think and discuss!BeBrave to show yourself! Come On,Boys And Girls!Practice Makes perfect【達標檢測、歸納總結】用本節(jié)課中學的知識點完成下列句子。1.This factorys production _.(減少)2.He is likely to _IT in the future.（主修)3.Tom _and was late for work. 湯姆遇上堵車，上班遲到了。4.Tom was late for school yesterday because his mother didnt wake him up on time。 翻譯_5.So thick_ the sandstorm that we could not see the roads.6. 為了保護環(huán)境，我們不要過度砍樹和挖草。_7.The girl _ it. 這個女孩好像已經(jīng)知道了這件事情。8.There_(be)masses of people in the hall. 大廳里有很多人。9. There _ (be)a mass of children in the yard. 院子里有很多孩子。 【知識梳理、歸納總結】【預習指導、新課鏈接】見預案 4