《单元语法聚焦》Safety PPT
第一部分内容:教材典句
1.Look at this yellow star, Brian and Jenny!
布莱恩、詹妮,看这颗黄色的星星!
2.Let me get the ladder for you.
让我给你拿把梯子。
3.Don't stand on chairs.
不要站在椅子上。
4. Be careful with scissors and knives!
小心剪刀和刀子!
5. Never smoke because of much pressure!
永远不要因为压力大而吸烟!
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单元语法聚焦PPT,第二部分内容:语法探究
1. 定义
祈使句是英语中的基本句型之一,用来表达建议、命令、请求、警告、劝告、禁止等语气。祈使句的主语一般为第
________人称,通常可以________。为了使语气更加客气或缓和,可在句前或句末加上________一词。
2. 构成
(1)祈使句的肯定形式一般以________动词或________动词原形开始,也可以以动词let 开始。
(2)祈使句的否定形式一般在句首加________或________。
(3)以let开头的祈使句:
肯定句:Let him come in.
否定句:Don't let him come in.或Let him not come in.
(4)有些祈使句可用No开头,表示禁止。
No smoking, please. 请不要吸烟。
No photos! 禁止拍照!
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单元语法聚焦PPT,第三部分内容:实战演练
Ⅰ.单项选择
( ) 1. 2017·白银 Boys and girls,________ learning and have fun.
A.keep B.to keep
C.keeping D.kept
( ) 2. ________carefully, please! Look at the road sign. There is a school ahead.
A.Drive B.To drive
C.Driving D.Drives
( ) 3. ________ patient with him, please. He is only three years old.
A.Don't B.Be
C.Is D.Does
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