Unit 4 At the farmPart A 复习课件（21张PPT)

课件21张PPT。Unit 4 At the farmPartLet’s talkA:Look at these! Are these carrots?
B:Yes, they are.
C:Wow! They’re so big!
C:What are these?
B:They’re tomatoes.
C:But they’re yellow!
B:Try some! They’re good.
C:Thanks. Yum.Let’s playAre they tomatoes?What are these?No.What are these?Yes.Let’s learntomatoesgreen beanscarrotspotatoesLook at the green beans. They’es so long!Yes, and the potatoes are big.你发现了什么？tomatoesgreen beanscarrotspotatoestomatoesgreen beanscarrotspotatoes词汇习练句型习练看图回答。
1.Are these tomatoes? 2.Are these monkeys?
3.Are these apples? 4.What are these?
5.What are these?
Let’s chantI like tomatoes.
I like potatoes.
Carrots I will try.
I love to eat green beans.
But onions make me cry.Let’s spell Read, listen and chant.horse fork/ ?: / homework world map/ ?: / Read, listen and number.forkforkforkforkforkfork156234 Read, listen and write.I’d like four .This is her .I’d like . forkshomeworkhorses句型习学1.询问“这些是……吗？”的句型结构：Are these+名
词复数？
这是由be动词引导的一般疑问句。因为主语是复数
形式，因此be用are 的形式。
肯定回答为：Yes, they are.
否定回答为：No, they aren’t.
例句：—Are these tomatoes?
—Yes, they are.
—No, they aren’t.
2.询问“这些是什么？”的句型：What are these?
这是由what引导的特殊疑问句。主语的单复数形式
决定be动词用is还是are。these是代词，用来指代
复数名词，因此be动词用are。这个句 型回答为：
They’re…
例句： —What are these?
—They’re eggs.

认识复单数的化变hen—hens
cow—cows
horse—horsespotato—potatoes
tomatoes—tomatoessheep—sheep
deer—deer1．一般名词复数是在名词后面加上“s”;2．以s， sh， ch， x等结尾的词加“es”; 3．以辅音字母＋y结尾的词，变y为i加 es；
以元音字母＋ y结尾的名词变复数时，直接加s变复数； 4．以有生命的植物o 结尾的名词变复数时加es；
5．以f或fe结尾的名词变复数时，去掉f， fe 加ves。练 习 题单复数的变化
sheep______ cow______
hen_______ duck______
chick______ horse______
pig_______ goose________
cat_______ do_______
it________ this________
that________ is_______ 句型转换①This is a sheep.（变复数句） _______________
②They are some cows. (变单数句)
___________
③These are some ducks.__________
（变一般疑问句并作肯定回答）
④They are beautiful horses._________
(对画线部分提问)
⑤ They are my hens.____________
（变一般疑问句并作否定回答）
⑥I have six pigs._______________
(对画线部分提问)
本节课学习了什么……总 结谢 谢