八年级下英语第一单元教案

启灵教育学员辅导资料

课程名称

八年级下英语

上课时间2012 年02 月25 日课次第3 课次

辅导老师

朱老师辅导方式

小班

教学内容Unit1 Memory教学材料

课本、教材完全解读、北大绿卡学生小班

教学目标掌握if 条件状语从句，同时能够进行if \unless\or三种句型的互换。掌握本单元必背的翻译句子。

教学重难点If 条件状语从句的主从时态。翻译句子。

教学过程设计

一．if 引导条件状语从句

1．含义

由if 引导的条件状语从句表示在某种条件下某事很可能发生或者必然发生。

2．用法与结构

由if 引导的条件状语从句根据用法的不同可以分为两种结构：

1）表示在某种条件下，某事很可能会发生：

if + 从句（一般现在时），sb. will + 动词原形（即一般将来时）【主句】

2）表示在某种条件下，某事必然会发生（常表示客观真理或普遍的现象）

If + 从句（一般现在时），sb. be \ do (一般现在时) 【主句】

二．unless 引导条件状语从句

unless = if… not.. 表示“除非。。。否则。。。”

if条件状语从句变unless 条件状语从句“三步走”：

先将if 句改为if..not..句，

再将if..not..句，去掉if..not, 加上unless后主句照抄，

unless 放在前，从句尾巴加逗号，

unless放在后，前面不要加逗号。

三．Or （否则）连词来做if和unless条件状语从句的同意句转换

Sb. should do sth. , or sb. will \ won’t do sth.

某人应该做某事，否则就会怎么样。

四．结合教案2的翻译句子进行解析

五．课堂练习和作业

Chapter 1 Memory

启灵测试题

姓名:_______________ 基础班_______培优班______（打钩即可）

i. Multiple choice（共15小题，每小题1分，满分15分）

( ) 1.You will be late for school ______ you leave now.

A. if

B. unless

C. when

D. while

( ) 2.Water turns into ice_____ you cool it.

A. since

B. unless

C. if

D. and

( ) 3.A fish____ if you _____it out of water.

A. dies,take

B. died ,took

C. dying, taking

D. has died, has taken

( ) 4.He is going to visit the Window of the world if it ____ tomorrow.

A. don’t rain

B.doesn’t rain

C.didn’t rain

D.won’t rain

( ) 5.I ______ the CDs to you if I have time tomorrow.

A. will give

B.gave

C.have given

D.give

( )6. I won’t work out the problem_____________ the teacher helps me.

A. if

B. because

C. until

D. unless

( ) 7. They didn’t start the work _____their teacher came back.

A. until

B. unless

C. as soon as

D. if

( )8.. You will fall behind others _____ you work hard.

A. unless

B. if

C. though

D. because

( )9. Tom had a headache, _____ he didn’t go to the party.

A. because

B. so

C. but

D. or

( ) 10. None of us knew what had happened _____they told us about it.

A. when

B. until

C. after

D. though

( )11. I don’t know if it ________ tomorrow. If it__________ , I won’t go out.

A. will rain, rains

B. will rain , will rain

C. rains, rains

D. rains, will rain ( )12. You should not go out to play ______ you finish your lessons

A. unless

B. after

C. when

D. while

( ) 13. I’ll go shopping with you if I ______free tomorrow.

A. will be

B. shall be

C. am

D. was

( ) 14.You’ll do much better ___________ you’re more careful with your spelling.

A. unless

B. before

C. although

D. if

( ) 15.Nobody can learn English well _________ he works hard on it.

A. if

B. when

C. unless

D. but

( ) 16. I’ll go to the English corner next Sunday __________.

A. if it will be sunny

B. if I am free

C. when I have no time

D. because I am free

( )17. If there __________ happens, we usually remember it well.

A.are something dramatic

B. are dramatic something

C. is something dramatic

D. is dramatic something

( )18. You’d better ___________ a rest ,__________ you ?