《I have a pen pal》PPT课件17
你的新发现？
比较：
I like playing football.
动词原形
He likes reading stories.
动词第三人称单数形式
观察并总结：???
1.什么时候用动词第三人称单数形式？
2.动词发生了哪些变化？
3.什么情况下动词需要这样变化？
4.动词的变化有什么规律？
... ... ...
Let's say
He______(live) in Australia,but he often______(cook) Chinese food.
小结：
1、以辅音字母+y结尾的动词变第三人称单数把y为i再加es
fly--flies study-- studies
2、以元音+y结尾的单词，加s
play--plays say--says
以o结尾的动词变第三人称单数结尾加es。
go–goes do–does
... ... ...
动词的第三人称单数形式的变化规律
1.一般情况在词尾加s, like--likes
2.以o. s .x .sh. ch.等结尾的单词，加es
go-- goes teach-- teaches push --pushes
3.以元音+y结尾的单词，加s
play-- plays say-- says
4.以辅音字母+y结尾的单词变y为i再加es
fly-- flies study-- studies
... ... ...
仿照例子写句子：
例子: teach English
→He teaches English.
→ Does he teach English?
→ Yes, he does.
→ No, he doesn’t.
Let's write
一、我会写出下列单词的第三人称单数形式。
1. live __________ 2. study ________
3. watch _________ 4. go ___________
5. do ___________ 6. play___________
二、我会选出正确的单词完成句子。
1．He __________( live / lives ) in Beijing.
2. _________ ( Do / Does ) your pen pal live in China?
3. Mr. White __________( study / studies ) Chinese.
4. I often_______( go / goes ) to school on foot.
My mother _______( go / goes ) to work by bus.
5. Bill likes _________( watch / watching ) TV.
He often _________( watch / watches ) TV on the weekend.
... ... ...
小结
在英语中一般现在时常以动词原形表示，但当主语是第三人称单数时（he she it…），应用动词的第三人称单数形式.动词的第三人称单数形式的变化规律：
1.一般情况在词尾加s, like--likes
2.以o. s .x .sh. ch.等结尾的动词，加es
go-- goes teach-- teaches fix--fixes
wash –washes pass--passes
3.以元音+y结尾的单词，加s
play-- plays say-- says
4.以辅音字母+y结尾的单词变y为i再加es
fly--flies study-- studies
... ... ...
总结:
Does＋单三主语＋ 动词原形＋其他？
肯定回答：Yes, he／ she does.
否定回答：No, he／she doesn’t.
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