根据中文意思完成句子
　【小题1】 我喜欢北京的秋天，你呢？
　　I like the autumn in Beijing, ____________ you?
　【小题2】多吃蔬菜水果对健康有好处。
　　____________ your health to eat more vegetables and fruit.
　【小题3】你愿意参观我们的新学校吗？
　　____________ to visit our new school?
　【小题4】哥哥花了一个星期教我弹吉他。
　　____________to play the guitar.
　【小题5】妈妈常常告诉我，既不要炫耀自己，也不要轻视别人。
　　Mom often ____________.

1.我们没有理由迟到。

There is 　　  　 　　for us 　　　      　.

2.在周末，我习惯于晚起。

On weekends, I 　　  　                       　　.

3.他费尽心思帮助我。

He 　　                                               　  　　.

4.我发现忘记那次经历很难。

I find 　　  　                        　　 that experience.

5. 正如你所能想象到的，情况与我们国内的大不一样。

　　        　  you can imagine, things are 　　        　  the way they are at home.

用am，is或are填空，然后总结其用法。

(1)That's my father and this ________ my mother.

(2)This is my cousin and that ________ my sister.

　　(3)－________she your sister?

　　－Yes, she ________.

　　(4)－And ________ he your brother?

　　－No. He's my friend.

　　(5)－________ Guo Peng your brother?

　　－Yes, he ________.

(6)I ________ his friend. I'm not his brother.

　　(7)－________ you Jack's brother?

　　－No, I'm not. I ________ his cousin.

(8)These ________ my grandparents.

　　(9)－________ this your aunt?

　　－Yes, it ________.

(10)These ________ my parents, those ________ my grandfather and grandmother.

(11)These are my brothers. They ________ Jeff and Jack.

(12)They aren't my sisters. They ________ my friends.

am用于第一人称单数I之后；is用于第三人称单数ge，she，it以及相当于he，she或it；are用于第二人称或所有人称的复数，表达“是”的意思。可用下面的口诀来帮助记忆：“我用am你用are，is用于他她它，复数全都要用are”。

I am…可以缩写成I'm，he is可以缩写成 he's，she is可以缩写成加she's，it is可以缩写成it's，而we are，you are，they are可分别编写成we're，you're，they're。am，is，are的否定形式是在后面加not，如：am not，is not，are not。is not通常缩写为isn't，而are not通常缩写为aren't。如：

(1)I'm Alice, I'm not Mary. She's Mary.

(2)This isn't my brother. He's my cousin.

(3)They're my brothers. They aren't my friends.