2026年暑假作业教育科学出版社七年级英语广西专版第50页答案
一、根据句意,用括号中所给动词的正确形式填空。
1.
Close
(close) the window, please.
2.
Don't talk
(not talk) in the library.
3.
Listen
(listen) to the teacher carefully.
4.
Don't run
(not run) in the hallway(走廊).
5.
Turn
(turn) off the lights before leaving.
6.
Don't eat
(not eat) too much candy.
7.
Read
(read) the instructions(用法说明) first.
8.
Don't forget
(not forget) your homework.
9.
Be
(be) quiet during the exam.
10.
Don't touch
(not touch) the hot stove.

答案

1. Close 2. Don't talk 3. Listen
4. Don't run 5. Turn 6. Don't eat
7. Read 8. Don't forget 9. Be
10. Don't touch

解析

【分析】
本题考查英语祈使句的基本用法。祈使句用于表达命令、请求等语气,肯定形式以动词原形开头;否定形式是在动词原形前加Don't。解题时,先判断句子是肯定还是否定祈使句,肯定句直接填括号内动词原形,否定句填“Don't + 动词原形”即可。
【解析】
1. 本句为肯定祈使句,用动词原形,故填Close;
2. 本句为否定祈使句,结构为Don't + 动词原形,故填Don't talk;
3. 肯定祈使句,用动词原形,故填Listen;
4. 否定祈使句,结构为Don't + 动词原形,故填Don't run;
5. 肯定祈使句,用动词原形,故填Turn;
6. 否定祈使句,结构为Don't + 动词原形,故填Don't eat;
7. 肯定祈使句,用动词原形,故填Read;
8. 否定祈使句,结构为Don't + 动词原形,故填Don't forget;
9. 肯定祈使句,be动词原形为Be,故填Be;
10. 否定祈使句,结构为Don't + 动词原形,故填Don't touch。
【答案】
1. Close
2. Don't talk
3. Listen
4. Don't run
5. Turn
6. Don't eat
7. Read
8. Don't forget
9. Be
10. Don't touch
【知识点】
祈使句肯定形式、祈使句否定形式
【点评】
本题为基础语法练习题,聚焦祈使句的核心结构,考查学生对祈使句肯定与否定形式的掌握,题型简单直接,用于巩固基础语法知识。
【难度系数】
0.8
二、将下列陈述句改为祈使句。
1. You should clean your room.
Clean your room.

2. You must not feed(喂养) the animals.
Don't feed the animals.

3. You have to turn off your phone.
Turn off your phone.

4. You shouldn't be late for class.
Don't be late for class.

5. You must not touch the paintings.
Don't touch the paintings.

答案

1. Clean your room.
2. Don't feed the animals.
3. Turn off your phone.
4. Don't be late for class.
5. Don't touch the paintings.

解析

【分析】
要将陈述句改为祈使句,需掌握祈使句的核心规则:肯定祈使句以动词原形开头,省略主语you;否定祈使句以Don't + 动词原形开头,省略主语you。转换时先判断原句的肯定/否定属性,再对应调整:1. 原句为肯定,去掉情态动词should;2. 原句为否定(must not),转换为Don't + 动词原形;3. 原句为肯定,去掉have to;4. 原句为否定(shouldn't),转换为Don't + be;5. 原句为否定(must not),转换为Don't + 动词原形。
【解析】
1. 原句是肯定含义,祈使句用动词原形Clean开头,省略主语you,转换为Clean your room;
2. 原句是否定含义(must not),祈使句否定形式为Don't + 动词原形feed,转换为Don't feed the animals;
3. 原句是肯定含义,去掉have to,用动词原形Turn开头,转换为Turn off your phone;
4. 原句是否定含义(shouldn't),祈使句否定形式为Don't + be,转换为Don't be late for class;
5. 原句是否定含义(must not),祈使句否定形式为Don't + 动词原形touch,转换为Don't touch the paintings。
【答案】
1. Clean your room.
2. Don't feed the animals.
3. Turn off your phone.
4. Don't be late for class.
5. Don't touch the paintings.
【知识点】
肯定祈使句、否定祈使句、陈述句转祈使句
【点评】
本题考察英语基础句型转换,核心是掌握肯定和否定祈使句的构成规则,属于易得分的基础题型。
【难度系数】
0.8