河北省石家庄市复兴中学人教版高中英语必修二学案：UNIT 4 WILDLIFE PROTECTION（READING3） .doc

1、 Unit 4Wildlife protection (Reading3） 班级 姓名 小组_第_号【学习目标】1.学生通过认真阅读篇章了解动物灭绝2.通过小组讨论以及教师讲解分析课文内容习题。【学习重点】 了解文章内容并读熟【学情分析】学生对课文读音掌握不准【导学流程】自主学习内容 一 回顾旧知单词识记1._ (vt.) 检查；视察_ (n.) 检查员；视察员_(n.) 检查；视察2_ (adj.) 没料到的；意外的_(adj.) 预期的；预料的3_ (n.) 灰尘；尘土；尘埃_ (adj.) 满是灰尘的4_ (n.) 消失_ (vi.) 消失_ (vi.) 出现；到场_ (n.) 出现；外

2、表5_ (n.) 结局；结尾_ (vt.& vi.) 结束；终止 (n.) 结束；末端；尽头二 基础知识感知： 动物灭绝从地球有史以来的这段漫长时期，许多动物都消失了。这些动物中最有名的是恐龙。千百万年前，恐龙就在地球上生活，比人类的出现要早得多，当时它们的前景好像也很安全。当时有许多不同种类的恐龙，其中有很多种类曾经生活在中国。25个种类的恐龙蛋是在河南省南阳西峡县发现的。不久前，在辽宁省的朝阳县新发现了一种罕见的、形状像鸟一样的恐龙。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。科学家们是根据恐龙骨骼的连接方式得知的这些。恐龙大约在6,500万年前就突然

3、地灭绝了。有些科学家认为恐龙灭绝是发生在一件意外事故之后，当时宇宙间一块巨石击中地球因而在空气中扬起太多的尘土。另外一些科学家则认为，地球变得太热，因此恐龙无法在地球上生活了。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。我们知道，近来许多其他的野生动植物、昆虫和鸟类也灭绝了。根据联合国的一份报告，在过去500年里，有844种动植物消失。渡渡鸟就是其中的一种。它生活在毛里求斯岛上，是一种非常友好的动物。请听一个关于渡渡鸟的故事，看看它是如何从地球上消失的。三、探究问题 本单元课文内容及习题四、基础知识拓展与迁移：短语完形1_ usual 像平时；像往常一样 2_

4、before 很久以前3come _being形成；产生 4_ sure 肯定地；确切地5according _ 按照；根据所说6_ the last 500 years 在过去的500年里7so _以致；结果请及时记录自主学习过程中的疑难：小组讨论问题预设: 1.After a while she saw some zebra with black and white lines going beneath their stomachs.(教材P28)信息提取with宾语宾补，可以充当该结构中宾补的有：不定式、分词、介词短语、形容词、副词等。例句仿写我把座位让给了一个抱孩子的妇女。I gav

5、e my seat to a woman _.2They lived on the earth tens of millions of years ago, long before humans came into being and their future seemed secure at that time.(教材P30)信息提取long before “在之前早就”。例句仿写在时间未到之前，我早早解决了所有问题。I solved the questions _ the time was up.3There were many different kinds of dinosaurs a

6、nd a number of them used to live in ChinA(教材P30)信息提取There be .，由临近的名词确定be的单复数形式。例句仿写课桌上有一支钢笔，一支铅笔和两本书。_ a pen，a pencil，and two books on the desk.4It is a pity that in the story nobody helped the dodo.(教材P31)信息提取It is a pity that . “很遗憾/可惜”，为固定句型。例句仿写真遗憾你错过了那次聚会。_ you missed the party.提问展示问题预设：AChoos

7、e the best answers according to the passage.1According to the passage, what can we know about the dinosaurs?ADinosaurs were once the kindest animals on the earth.BThey lived on the earth together with humans.CThey died out for some unknown reasons.DIt was the temperature that caused them to die out.

8、2The birdlike dinosaurs were discovered in_.AXixia County, Nanyang, Henan ProvinceBChaoyang County, Liaoning ProvinceCXixia County, Nanyang, Liaoning ProvinceDChaoyang County, Henan Province3How did scientists know that the birdlike dinosaurs could run as well as climb trees?ABy studying their eggs.

9、BBy studying their teeth.CBy studying their bones.DBy guessing only.4When did dinosaurs die out?AAbout 65 million years ago.BAbout 70 million years ago.CTens of millions of years ago.DAbout 500 years ago.5How many animals and plants have disappeared in the last 500 years according to a UN report?ASo

10、me 844.BSome 500.C2.5D65.五、课堂训练问题预设： BFill in the blanks according to the text.Many wild plants and animals have died out during the long history of the earth. And dinosaurs are the _1_ (much) famous of the animals. They came into being much earlier than humans. There _2_ (be) many different kinds o

11、f dinosaurs. Eggs and bodies of dinosaurs _3_ (discover) in some places of ChinA However, dinosaurs died out _4_ (sudden). Maybe _5_ is because of a(n) _6_ (expect) incident _7_ a huge rock from space hit the earth. Maybe that the earth got too hot for the dinosaurs to live on any more caused their _8_ (extinct). No one knows _9_ sure why and how dinosaurs disappeared from the earth in such _10_ short time.1_2._3._4._5_6._7._8._9_10._六整理内化： 1.课堂小结2.本节课学习内容中的问题和疑难