2026年精练课堂分层作业七年级英语下册人教版第107页答案
四、根据句意，用括号中所给单词的正确形式填空。(20 分)
1.
Do
(do) your homework right now(立刻).
2. Please
be
(be) quiet in the room.
3.
Don't
let
(not let) the dog come in.
4. No
swimming
(swim)!
5. They have to
do
(do) their homework when they get home.
6.
Don't
be
(not be) late for the morning.
7. Kate
has
(have) to come to school every weekday.
8. Jack,
get
(get) up quickly.
9.
Don't
use
(not use) your phone in class.
10. You
mustn't
(must not) eat in class.

答案

1. Do 2. be 3. Don't let 4. swimming
5. do 6. Don't be 7. has 8. get
9. Don't use 10. mustn't

解析

【分析】本题为英语单词形式填空题，主要考查祈使句的各类结构（肯定祈使句、否定祈使句）、情态动词用法、主谓一致及固定搭配have to的用法。解题时需先判断句子句式：若为表命令/请求的祈使句，肯定式用动词原形开头，否定式用“Don't + 动词原形”；“No + 动名词”是固定警示表达；情态动词后接动词原形；主语为第三人称单数时，一般现在时谓语动词需用第三人称单数形式。
【解析】1. 肯定祈使句以动词原形开头，故填Do；2. 肯定祈使句中please后接be动词原形，故填be；3. 否定祈使句结构为“Don't + 动词原形”，故填Don't let；4. “No + 动名词”是固定表达，表“禁止做某事”，swim的动名词为swimming，故填swimming；5. have to后接动词原形，故填do；6. 否定祈使句中be动词用原形，结构为“Don't + be”，故填Don't be；7. 主语Kate是第三人称单数，一般现在时中have to需变为has to，故填has；8. 肯定祈使句直接用动词原形，故填get；9. 否定祈使句结构为“Don't + 动词原形”，故填Don't use；10. must not的缩写为mustn't，故填mustn't。
【答案】1. Do 2. be 3. Don't let 4. swimming 5. do 6. Don't be 7. has 8. get 9. Don't use 10. mustn't
【知识点】祈使句、情态动词、主谓一致
【点评】本题聚焦初中英语基础语法，涵盖祈使句的核心结构、情态动词的用法及固定搭配，题型常见，难度较低，适合巩固基础语法知识，学生需准确掌握各类句式的规则即可完成作答。
【难度系数】0.7