《2025年学习指导用书英语第一册》

二、在括号中圈出动词的正确形式完成句子。
1. The problem of air pollution (becomes; becoming) even more serious.
2. Trees (provides; provide) us with wood and other products.
3. If everyone (does; doing) something to protect the environment, our world will be much better.
4. Water (is; been) the source of life.
5. The earth (is; being) our home and we have the duty to take care of it for ourselves and future generations.

答案： 1. becomes
解析：句子描述的是客观事实，用一般现在时，主语是第三人称单数，所以选 becomes。
2. provide
解析：主语 trees 是复数，一般现在时中谓语动词用原形，所以选 provide。
3. does
解析：if 引导的条件状语从句，主句用一般将来时，从句用一般现在时，主语 everyone 是第三人称单数，所以选 does。
4. is
解析：句子陈述客观事实，用一般现在时，主语 water 是不可数名词，be 动词用 is。
5. is
解析：句子描述客观事实，用一般现在时，主语 the earth 是第三人称单数，be 动词用 is。

三、选出适当的选项补全句子。
1. He often _______ dinner at home.
A. have B. has C. having D. will have
2. What _______ they often _______ on Saturdays?
A. do; do B. do; does C. does; do D. do; did
3. _______ your parents _______ newspapers every day?
A. Does; read B. Do; reading C. Do; read D. Did; reading
4. She and I _______ a walk together every evening.
A. taking B. takes C. will take D. take
5. You always _______ your homework well.
A. does B. do C. doing D. will do
6. The child often _______ TV in the evening.
A. watches B. watch C. will watch D. watching
7. I _______ ill. I'm staying in bed.
A. were B. been C. am D. being
8. What day _______ it today?
A. was B. been C. being D. is
9. _______ you _______ your teeth every morning?
A. Did; brushed B. Do; brush C. Does; brush D. Will; brushed
10. Mike sometimes _______ to the park with his sister.
A. gone B. will go C. goes D. going

答案： 1. B
解析：主语 he 是第三人称单数，often 表明用一般现在时，谓语动词用 has，所以选 B。
2. A
解析：主语 they 是复数，often 表明用一般现在时，助动词用 do，后面动词用原形 do，所以选 A。
3. C
解析：主语 your parents 是复数，every day 表明用一般现在时，助动词用 do，后面动词用原形 read，所以选 C。
4. D
解析：主语 she and I 是复数，every evening 表明用一般现在时，谓语动词用原形 take，所以选 D。
5. B
解析：主语 you 是第二人称，always 表明用一般现在时，谓语动词用原形 do，所以选 B。
6. A
解析：主语 the child 是第三人称单数，often 表明用一般现在时，谓语动词用 watches，所以选 A。
7. C
解析：句子描述现在的状态，用一般现在时，主语 I 后面 be 动词用 am，所以选 C。
8. D
解析：询问今天星期几，用一般现在时，主语 it 后面 be 动词用 is，所以选 D。
9. B
解析：every morning 表明用一般现在时，主语 you 是第二人称，助动词用 do，后面动词用原形 brush，所以选 B。
10. C
解析：sometimes 表明用一般现在时，主语 Mike 是第三人称单数，谓语动词用 goes，所以选 C。