()1.— that man really cool?
—Yes, I think so.

A.Does
B.Do
C.Is

C

句子中形容词cool作表语，一般疑问句需用be动词引导；主语that man是第三人称单数，对应的be动词为Is。助动词Do/Does后要接动词原形，不符合本题结构，因此选C。

()2.You shouldn't throw the bottles on the floor. .

A.Pick it up
B.Pick up them
C.Pick them up

C

1. 句中bottles是复数名词，应用them指代；2. 短语“pick up”后接代词时，代词需放在pick与up中间，因此选C。

()3.—What makes your hair so messy?
—The strong wind .

A.does
B.is
C.was

A

本题考查助动词的替代用法。问句谓语动词是实义动词makes（一般现在时，第三人称单数），答语为避免重复，用does替代“makes my hair so messy”这一动作。B选项be动词无法替代实义动词，C选项过去式与问句一般现在时时态不符，故选A。

()4.Oil is useful energy.

A.a
B.an
C./

C

energy是不可数名词，不定冠词a、an仅用于可数名词单数前，此处表示泛指，不需要加冠词，因此选C。

()5.Are you ready the PE lesson?

A.to
B.for
C.at

B

本题考查固定搭配。"be ready for"后接名词或名词短语，"be ready to"后接动词原形。句中"the PE lesson"是名词短语，因此用"for"。

三、从方框中选出合适的单词或短语，并用其正确形式填空。（每个单词或短语限用一次）
come from，plant，energy，not drink，help，keep，cut down，too many，make a clock，throw

1. Who oftenyou with your English?
2. Food can give us a lot of.
3.too much water at a time.
4. To protect the Earth，don't useplastic bags.
5. We can reuse a CD. I think children will be happy.
6. The workerstrees along the street now.
7. We shouldn'ttoo many trees. They are very useful.
8. Most of our energycoal and oil.
9. We should take a bus to workthe air clean.
10. Would you pleasethe rubbish in the bin?

1. helps
2. energy
3. Don't drink
4. too many
5. to make a clock
6. are planting
7. cut down
8. comes from
9. to keep
10. throw

1. 考查固定搭配`help sb with sth`，主语`who`为第三人称单数，一般现在时，填`helps`。
2. 食物为人体提供能量，`energy`是不可数名词，填`energy`。
3. 祈使句的否定形式，表达“不要一次喝太多水”，填`Don't drink`。
4. `plastic bags`是可数名词复数，用`too many`修饰可数名词复数，填`too many`。
5. 不定式表目的，指用CD来制作时钟，填`to make a clock`。
6. `now`提示用现在进行时，主语`workers`是复数，be动词用`are`，`plant`变现在分词`planting`，填`are planting`。
7. `shouldn't`后接动词原形，`cut down trees`是“砍伐树木”，填`cut down`。
8. 一般现在时，`energy`是不可数名词，`come from`变第三人称单数形式`comes from`，填`comes from`。
9. 不定式表目的，坐公交上班是为了保持空气清洁，填`to keep`。
10. `Would you please`后接动词原形，`throw`表示“扔”，填`throw`。