山东省新泰市汶城中学高中英语必修二导学案：UNIT 4 WILDLIFE PROTECTION 第4课时.doc

1、教师寄语: A good book is the best of friends, the same today and forever. （ 一本好书，相伴一生。）学习内容：Using language 学习目标:语篇理解和听说读写的综合运用能力提高。预习课文，填写短语：在地球漫长的历史中 形成，产生 数百万年前 惊讶地发现 不仅而且 灭绝 一次意外事件 确切地知道 在如此短的时间里 在过去500的时间里 Language points in the passage：1.They lived on the earth tens of millions of years ago，long be

2、fore humans came into being.千百万年前恐龙就在地球上生活，比人类的出现要早得多。(1) long before相当于long long ago，意为“很久以前”，常用于过去时或过去完成时的句子中作时间状语；before作介词后边可以跟时间点; before作连词连接时间状语从句。(2) before long相当于soon或a little later，意为“不久；不久以后”，常与将来时、过去时态连用，在句中作状语，不可以直接加从句。(3) It is/ was not long before从句不久就(4) It will be long before从句要过很久

3、才It will not be long before从句过不了多久就(主句用一般将来时，从句用一般现在时) It wont be long before he goes abroad. 不久之后他就要出国。 I had heard of him long before I came here.早在我来这儿很久以前我就听说过他的情况。即学即练：1). Why didnt you ask the teacher the question?She had left the office _ I had time to do it.Aas Btill Cafter Dbefore2)The pres

4、ident made a mistake，but then he corrected the situation _it got worse.Auntil Bwhile Cbefore Dbecause2According to the UN report，some 844 animals and plants have disappeared in the past 500 years.短语归纳：in/ during/ for the past/ last years 在过去的.年里用于现在完成时。即学即练：1). In the past few years there _ great ch

5、anges in my hometown.A. have been B. were C. had been D. are2). Manyhighbuildings _ inWuhaninthepastfewyears. A. havebeensetup B. havebuilt C. hadbeenbuilt D. hadbeensetup当堂达标：1. He was at a_ what to say to the teachers questionobviously he was _in thought just now.Aloss；losing Bloss；lost Closing；lo

6、st Dlost；loss2. Too much drinking will do_ to your health；you should take the doctors advice.Aharm Btrouble Cdamage Dhurt3After graduation from college，he began to wander from city to city，_a suitable job.Ahunting for Btaking on Clooking after Dbringing up4. Is it _ that our team will win?Yes，that i

7、s for _.Asure；certain Bcertain；sureCmade sure；certain Dmade certain；sure5. He was told that it would be at least three more months _ he could recover and return to work. Awhen Bbefore Csince Dthat6. How are the team playing?Theyre playing well，but one of them _ hurt.Agot Bhad Cturned Dbecome7Lets do something different._ How about tennis?ASo what？ BAll right. CWho cares? DIt depends.