人教版新目标八级上册英语单元知识点归纳.docx

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2013 版新d you a letter about my experience.
四、 重点语法：
If 引导的条件状语从句
1. 句子时态：主句为一般将来时、含情态动词的谓语动词或祈使句，从句为一般现在时。
Eg.
1f it doesn ’ t rain tomorrow, I
’ ll go biking riding with you.
If you finish your home, you can watch TV.
Please let me know if he comes to this city.
2. IF 的双重性——引导条件状语从句和宾语从句的区别：
if 引导条件状语从句，意为“ 如果” ，主句要用一般将来时；
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if 引导宾语从句，意为“ 是否”
,主句时态要根据语境确定。
Eg.
I don ’ t know if he will come here tomorrow.(
是否 )
If he comes, I ’ ll call you. （如果）
3.
与其他句式之间的句型转换：
A)
“ 祈使句 +and/or+ 一般将来时的句子
Eg.
If you don ’ t work hard, you
’ ll fail the exam.
=Work hard, and you
’ ll pass the exam.
=Work hard, or you
’ ll fail the exam.
B)
借助介词 with 或 without 来转换条件状语从句：
1. People can
’ t live without air or water.
=If there is no air or water, people can
’ t live (People will die).
2. If you help me, I ’ ll finish the work on time.
=With your help, I ’ ll finish the work on time.
3. If you don ’ t help me, I won =Without your help, I won
一、单项选择
1. — Hurry up ！ It’ s time to leave. — OK. _______ .
’ t finish the work on time.
’ t finish the work on time.
单元测试题
A. I ’ m coming
B. I ’ ll come
C. I ’ ve come
D. I come
2. －Is Mr. Brown living here?
－No, he moved _________ last week.
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A. to somewhere else B. somewhere else
C. to else somewhere D. else somewhere
3. －What are you doing?
－I’ m ________ my bag, but I can ’ t ________ it.
A. looking for, look for B. looking for, find
C. finding, look for D. finding, find
4. Helen doesn ’ t look _________ today. Is she ill?
A. better B. well
C. nervous D. happy
5. —I hear Jim is going t o _________