高中英语 Unit 4 Wildlife protection Period Ⅳ Using Language学案 新人教版必修2

Period Using Language.单词巩固1n._收入_恐龙_县；郡_事件；事变_灰尘；尘土；尘埃_结局；结尾2v._成功；接替；继任_雇用；利用(时间、精力等)_损害；危害_咬；叮；刺痛_检查；视察3adj._安全的；可靠的_凶猛的；猛烈的.短语回顾1_形成；产生2_按照；根据所说3_以致于；结果.课文理解()根据课文内容，判断正(T)、误(F)1Most animals have died out during the long history of the earth.()2Dinosaurs are the most famous of the animals that have disappeared.()3There used to be many different kinds of dinosaurs on the earth.()4A rare species of birdlike dinosaur could both run and climb trees.()5Now people know the reason why dinosaurs suddenly disappeared.()()根据课文内容，回答下列问题1When did dinosaurs live on earth?_2When did dinosaurs die out?_3How did dinosaurs die out?_4Where was birdlike dinosaur discovered?_5When did dodo die out?_.考点精析1They lived on the earth tens of millions of years ago，long before humans came into being.千百万年前，它们(恐龙)就在地球上生活，比人类的出现要早得多归纳long before可单独作状语，意为“很久以前；很早”，此时before为副词。long before构成的常用句型为It be long before从句和It be not long before从句，前者意为“过很久才”，强调经历的时间长；后者意为“不久就”，强调经历的时间短。运用(1)It _ we meet again.我们要过很久才能再见面。(2)It _ we meet again.我们不久还会再见面。2When scientists inspected the bones，they were surprised to find that these dinosaurs could not only run like the others but also climb trees.科学家们观察它们的骨头时，惊奇地发现它们不仅跟其他恐龙一样可以跑，而且还可以爬树。归纳inspect vt.检查；视察inspection n检查；视察inspector n检查员inspect sth./sb. for sth.因某事检查某事/某人运用(1)I got out of the car _.我下车检查损坏情况。(2)The building _ by the firesafety officers.消防安全官员定期视察这座大楼。(3)The meat will be sent _.这些肉将送去作进一步检查。3They learned this from the way the bones were joined together.科学家们是根据恐龙骨骼的连接方式来得出这种判断的。归纳the way在句中作介词from的宾语。后面的the bones were joined together是定语从句，修饰the way。当先行词是way，且在定语从句中作方式状语时，关系代词可用in which，that，也可以省略。运用(1)_ is wrong.这些同志看问题的方法是错误的。(2)That was the way_.那就是她解决这个问题的方法。(3)He learns to walk _.他学卓别林走路的方式。4Nobody knows for sure why and how dinosaurs disappeared from the earth in such a short time.没有人确切地知道恐龙是由于什么原因又是怎样在这么短的时间里从地球上消失的。归纳for surefor certain在口语中表示“确定，无疑”be sure of一定，必定be sure that确信；肯定be sure to do一定要做make sure确保；设法保证运用 (1)I think he works there but I couldnt say _.我想他是在那儿工作，但是我不敢肯定。(2)Stand outside the house all night，you _ to be cold.在屋外站一晚，你肯定会感冒的。5According to a UN report，some 844 animals and plants have disappeared in the last 500 years.根据联合国的一份报告，在过去500年里，有844种动植物消失。归纳according to按照；根据所说，用来引用出自他人或他处的消息，一般不能与me或my opinion等连用。运用(1)_，they gave up the experiment immediately.根据专家的意见，他们立刻放弃了这项试验。(2)The books in the library are distributed _.图书馆里的藏书按科目分类。Period Using Language课前准备区.1.income；dinosaur；county；incident；dust；ending2succeed；employ；harm；bite；inspect3secure；fierce.1.come into being2.according to3.so that课堂活动区.()1.F2.T3.T4.T5.F()1.Tens of millions of years ago.2About 65 million years ago.3Nobody knows for sure.4In Chaoyang County.5The last 500 years ago.1.(1)will be long before(2)wont be long before2(1)to inspect the damage(2)is regularly inspected(3)for further inspection3(1)The way (in which/that) these comrades look at problems(2)(in which/that) she worked the problem out(3)the way Chaplin did4(1)for sure(2)are sure5(1)According to experts opinions(2)according to subjects