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“Come here, Li Lei!” says the mother. “Give 1 your school 
report (成绩单).” Li Lei gives it to his mother. “Oh, you fail 2 !” says the mother. “You aren’t good at your lessons. Why not study 3 at school?” “I’m sorry, Mom.” says Li Lei. “I’ll do well 4 my lessons after you buy me a computer.” “Really?” asks the mother. “Yes,” answers Li Lei. “My teacher says computers can make people clever.” “ 5 right,” “ says the mother. “Let’s go to the shop and buy one.” When 6 come into the shop, the girl in the shop asks, “What can I 7 for you?” “Yes, please,” answers the mother. “I’d like to have a look at your computers.” “There are 8 kinds of computers here,” says the girl. “What kind of computer do you like, madam? These are table computers and those are portable (手提式的) 9 .” Li Lei looks at the computers and asks, “Do you have a computer that can do homework 10 me?”
| ( ) 1. A. mine | B. me | C. I | D. my |
| ( ) 2. A. away | B. down | C. again | D. back |
| ( ) 3. A. early | B. fast | C. right | D. hard |
| ( ) 4. A. in | B. on | C. with | D. to |
| ( ) 5. A. That’s | B. All | C. It | D. Just |
| ( ) 6. A. them | B. they | C. their | D. theirs |
| ( ) 7. A. am | B. do | C. does | D. have |
| ( ) 8. A. any | B. much | C. all | D. lot |
| ( ) 9. A.computer | B. one | C. them | D. ones |
| ( )10. A. for | B. to | C. with | D. on |
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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.
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