2. — are you doing?
—I'm reading a book.

A.Where
B.Who
C.What

C

根据答句“I'm reading a book.”（我正在读书）可知，问句是询问对方正在做什么。选项A.Where询问地点，B.Who询问人，C.What询问事物或动作。此处询问动作，应用What。

3. She often her homework before dinner.

A.do
B.does
C.did

B

本题可根据句子的时态和主语来确定谓语动词的形式。句子中"often"表明该句是一般现在时，主语"She"是第三人称单数，在一般现在时中，当主语是第三人称单数时，谓语动词要用第三人称单数形式。"do"的第三人称单数形式是"does"，"did"是"do"的过去式，不符合句子时态。所以此处应填"does"。

4. There a pencil-box and two books in Tom's bag.
A.are
B.is
C.be

B

There be句型遵循就近原则，靠近be动词的名词"a pencil-box"是单数，be动词用is。

5. We go to the park tomorrow.

A.will
B.doesn't
C.would

A

句中有“tomorrow”表示将来的时间，需用一般将来时，其结构为“will + 动词原形”。选项A“will”符合一般将来时的结构；选项B“doesn't”是一般现在时第三人称单数的否定形式，时态和人称都不符合；选项C“would”是“will”的过去式或用于虚拟语气等，在此处不适用。

Ⅸ. 根据短文内容判断句子的正(√)、误(×)。(15 分)

Lucy is very sad. Her cat Mimi is in the tree. She calls it again and again, but it can't get down (下来).
Now Uncle Wang comes here. He asks Lucy, “What's wrong with you?” Lucy says, “Mimi can't get down.” “Who's Mimi?” he asks. “It's my cat, the black cat. Look, it's there.”
“Don't worry. I'll help you.” says Uncle Wang. Then he climbs (爬) up the tree.
Mimi jumps down from the tree and runs away. Lucy runs after her cat. But Uncle Wang can't get down, either. He doesn't know what to do.
() 1. Lucy calls Uncle Wang again and again.
() 2. The cat can't get down from the tree.
() 3. Uncle Wang helps Lucy get the cat down.
() 4. Lucy and her cat run away.
() 5. Uncle Wang doesn't know how to get down.

×√×√√

1. 原文提到“She calls it again and again”中it指代猫Mimi，不是叫Uncle Wang，所以该句错误。
2. 文中“Her cat Mimi is in the tree. She calls it again and again, but it can't get down”表明猫下不来，该句正确。
3. 从“Mimi jumps down from the tree and runs away”可知不是Uncle Wang帮Lucy把猫弄下来的，猫自己跳下来的，该句错误。
4. 依据“Mimi jumps down from the tree and runs away. Lucy runs after her cat”可知Lucy和她的猫跑开了，该句正确。
5. 由“But Uncle Wang can't get down, either. He doesn't know what to do”可知Uncle Wang不知道怎么下来，该句正确。