四、按要求改写句子。
1. You shouldn't writeon the white wall.（改为祈使句）
on the white wall.
2. Drivers shouldn't drive so much because cars use a lot of energy.（对画线部分提问）
driversso much?
3. The water is dirty.（改为感叹句）
theis!
4.Hobo is drawing a hill.（对画线部分提问）
Hobo?
5. Humans can plant trees to protect the Earth.（改为一般疑问句）
humanstotheEarth?

1. Don't write
2. Why shouldn't; drive
3. How dirty; water
4. What is; doing
5. Can; plant trees; protect

1. 祈使句的否定形式为“Don't + 动词原形”，将原句改写为祈使句的否定形式即可。
2. 对原因状语提问用疑问词Why，原句含情态动词shouldn't，变疑问句时将shouldn't提前，谓语动词用原形。
3. 修饰形容词的感叹句结构为“How + 形容词 + 主语 + 谓语！”，据此改写原句。
4. 对现在进行时的动作提问，用“What + be动词 + 主语 + doing?”的结构。
5. 含情态动词can的陈述句变一般疑问句，将can提到句首，谓语动词用原形，其余部分保持不变。

五、完形填空。
My uncle is 43 years old now. He is a good driver 1 he is a good father too. My uncle likes 2 sport very much. He also plays basketball. He is strong and healthy. He always says 3 his daughter，“Sport can make us strong.” Lily is my uncle's only daughter，and he loves her very much. He buys her anything she wants. When she makes mistakes，he never gets angry. He says to her 4 a smile，“ 5 do that again.” They love each other very much.
()1. A. and
B. or
C. but
()2. A. do
B. does
C. doing
()3. A. for
B. with
C. to
()4. A. on
B. with
C. in
()5. A. Isn't
B. Doesn't
C. Don't

1.A 2.C 3.C 4.B 5.C

1. 空格前后为并列关系，“好司机”和“好爸爸”是并列内容，用并列连词and，选A。
2. 固定搭配like doing sth.表示“喜欢做某事”，所以选C。
3. 固定短语say to sb.意为“对某人说”，选C。
4. 固定表达with a smile意为“带着微笑”，选B。
5. 本句是祈使句的否定形式，结构为Don't+动词原形，选C。