课时5Grammarandusage2PPT学习教案.pptx

会计学
1
课时5Grammarandusage2
Unit 4
Grammar and usage
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Unit 4
课件描述：
本课件主要运用于帮助学生巩固虚
拟语气的各个规则，并进行归纳和练习。
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1. Inversion of ConditionalOmission of “if”
虚拟条件句的从句部分如果含有were, should,或had,可将if省略，再把were,should或had 移到从句句首，实行倒装。
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If they were here now, they could help us.
Were they here now, they could help us.
If you had come earlier, you would have met him.　
Had you come earlier, you would have met him.
If I should have time, I would call her.
Should I have time, I would call her.
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Exercises I
First, change the following sentences into conditionals.
Second, invert these conditionals.
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1. The boy who went swimming in the No-
swimming Zone drowned in the river.
If the boy hadn’t gone swimming in
the No-swimming Zone, he wouldn’t have
drowned in the river.
Had the boy not gone swimming in the
No-swimming Zone, he wouldn’t have
drowned in the river.
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2. Billy was badly bitten by mosquitoes
because he forgot to use the mosquito net
last night.
If Billy had remembered to use the mosquito
net last night, he would not have been bitten by …
Had Billy remembered to use the mosquito
net last night, he would not have been bitten by …
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3. The mother carelessly put the knife within
the baby’s reach, and the baby cut herself
while playing it.
If the mother had carefully put the knife
out of the baby’s reach, the baby wouldn’t
have cut herself.
Had the mother carefully put the knife
out of the baby’s reach, the baby wouldn’t
have cut herself.
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Exercises II
Multiple Choices
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