单元语法聚焦 Grammar 语法精讲 祈使句 用法 表示命令、请求、建议、劝告、警告、禁止等 肯定形式 Do 型 动词原形+其他. Open the door, please. 肯定形式 Be 型 Be+名词/形容词+其他. Be a good boy. Be quiet. 肯定形式 Let 型 Let+宾语+动词原形+其他. Lets sing together. 否定形式 Do 型 Dont+动词原形+其他./ Never+动词原形+其他. Dont open the door, please. Never do it like that. 否定形式 Be 型 Dont+be+名词/形容词+其他./ Never+be+名词/形容词+其他. Dont be lazy. Never be late again. 否定形式 Let 型 Let+宾语+not+动词原形+其他./ Dont+let+宾语+动词原形+其他 Lets not sing together. Dont let him know the news. 否定形式 No 型 No+名词/动名词! No photos! No smoking! 语法精练 中考考点变式练 Ⅰ. 根据所给汉语提示完成下列句子（每空一词） 让我们打扫房间吧。 Lets _____ _____ the room. 今天冷。出门的时候请穿上你的厚大衣。 Its cold today. Please _____ _____your thick coat when you go out. 快点，否则我们上学就迟到了。 _____ _____, or we will be late for school. 请永远不要放弃！世界上从来没有人未经努力就取得成功。 Never _____ _____, please! No one in the world has ever succeeded without an effort. Ⅱ. 根据句意，用括号内所给单词的适当形式填空 (2025 无锡一模) If a rock is in your way, just _____ (step) over it. 6._____ (be) careful of the dog that doesnt bark. 7.(2025 白银二模改编) _____ (not turn) off the light. 8.（2025 苏州模拟）_____ (be) quiet in the library, please. 9.（2024 广州中考）Let's _____ (go) to the park this weekend. 10.（2025 青岛一模）_____ (not run) in the hallway. It's dangerous. 11.（2023 深圳中考）Please _____ (close) the window before leaving. 12.（2024 杭州模拟）Never _____ (give) up your dreams easily. Ⅲ. 语法与情景对话 13._____ dressed now, Tony! We are leaving in 10 minutes! A. To get B. Getting C. Get D. Got 14._____ the apple in half and each of us has one half. A. Cut B. Cutting C. To cut D. Cuts 15.Lets _____ time or words carefully because we cant get them back. A. to use B. using C. use D. uses 16.(2024 酒泉一模) Look at the sign. It says, “No _____!” A. touch B. to touch C. touching D. touched 17.(2025 天水一模改编) _____ eat fast food too often because it is harmful to your health. A. Not B. Don’t C. Doesnt D. Isnt 18.（2025 南京中考）_____ the door when you leave the room. A. Close B. Closing C. To close D. Closed 19.（2024 成都中考）Let's _____ a picnic in the countryside tomorrow. A. have B. to have C. having D. has 20.（2025 武汉模拟）_____ late for school again, or the teacher will be angry. A. Don't be B. Not be C. Be not D. Don't 21.（2023 重庆中考）The sign says "No _____", so you can't take photos here. A. photo B. photos C. to photo D. photograph 22.（2024 西安模拟）_____ careful with the knife. It may hurt you. A. Be B. Being C. To be D. Is Ⅳ. 句型转换 1.You cant play football in the classroom.（改为祈使句） _____ _____football in the classroom. 2.If you work hard, you will fall behind.（改为祈使句） _____ _____, or you will fall behind. 3.You shouldnt drive cars after drinking wine.（改为祈使句） Never _____ after drinking wine. 4.Do ... ...
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