Unit 2 Grammar 分层作业-2024-2025学年人教版（2024）七年级英语下册

Unit 2　No Rules， No Order Section A　What rules do we follow？ 第3课时　Grammar Focus 语法知识 一、祈使句： 1、含义：表达请求、命令、劝说、警告等的句子。 2、主语：是第二人称you, 通常省略。 3、形式：以动词原形开头，分为（be型， let 型， do型）；否定形式是在其前加don’t. 4、为表示礼貌，祈使句经常在句首或句末加please。句末用please时，前面通常加逗号。 Be careful when you cross the street. Practise the guitar every day. Don't be late for class. Let's see the lions. 二、情态动词 1、含义：情态动词表示说话人的语气和情态，如请求、许可、意愿、可能等。 2、形式：can、may、should、must、have to、should、后必须接动词原形。一起构成谓语。 情态动词一般没有人称和数的变化。否定形式是在其后加not. 3、具体含义 can 表示能力 I can play badminten,but I can’t play volleyball. 表示许可 We can't run in the hallways. I can watch TV after I finish my homework. 表示请求 Can I bring the mobile phone to school? No, you can’t. must 表示必须（主观意愿强烈） We must hurry,I don't want to miss the beginning of the show. mustn’t 表示不准；禁止（语气最强） You mustn’t talk to your mother like that. have to has to 表示不得不（客观需要） I have to wear the school uniform. She has to work late today. don’t/ doesn’t have to 表示不必 Tom doesn’t have to come before 6:00. It’s too early. 【语法练习】 一、 根据句意，用情态动词can、 must或have to的适当形式填空。 1. － Can you tell me how to get to the post office？－ Sure， I  　 　. 2. My brother  　　 　 get there before six o’clock. It’s too early. 3. － Does your mother  　　 　 cook breakfast for you？ － No， she doesn’t. 4. Look at the sign. You  　 　 smoke here， I think. 5. － Can I watch TV now， Mum？ － No， you  　 　. You must finish your homework first. 二、 句型转换。 1. Mary has to get to school before eight o’clock every morning.（改为一般疑问句）  　 　 Mary  　 　  　 　 get to school before eight o’clock every morning？ 2. Your friends can do the job for you.（改为否定句） Your friends  　 　  　do　 the job for you. 3. My parents have to work hard every day.（对画线部分提问） What  　 　 your parents  　 　  　 　 do every day？ 4. You can’t take photos in the library.（改为祈使句）  　 　  　 　 in the library！ 5. Can Sam ask Cindy to help him with his English？（做出肯定回答） ，  　  　 　. 三、 根据句意、汉语或首字母提示写出单词。 1. The young man sits in his office  　 　（安静地）. 2. Mr Brown often  　 　（离开） for Beijing to visit his parents on the weekend. 3. My grandmother  　 　（喂养） a lot of chickens， ducks， pigs and dogs. 4. － Shh！ You mustn’t make any  　n 　 in the library. － OK， I know. 5. Peter is ill today， so he is  　 　 from the English test. 四、完成句子 1. 你可以穿上你的毛衣吗? 今天很冷。Can you your sweater? It’s cold today. 2. 彬彬有礼，尊敬他人。 and treat others with . 3. 我可以把手机带到学校吗？ I the mobile phone school? 4. 不要插队。 jump the . 5. 在图书馆，我们必须保持安静。In the library, we must . [答案] 一、 根据句意，用情态动词can、 must或have to的适当形式填空。 1. － Can you tell me how to get to the post office？－ Sure， I  　can　. 2. My brother  　　doesn’t have to　 get there before six o’clock. It’s too early. 3. － Does your mother  　　have to　 cook breakfast for you？ － No， she doesn’t. 4. Look at the sign. You  　mustn’t　 smoke here， I think. 5. － Can I watch TV now， Mum？ － No， you  　can’t　. You must finish your homework first. 二、 句型转换。 1. Mary has to get to school before eight o’clock every morning.（改为一般疑问句）  　Does　 Mary  　have　  　to　 get to school before eight o’clock every morning？ 2. Your friends can do the job for you.（改为否定句） Your friends  　can’t　  　do　 the job for you. 3. My parents have to work hard every day.（对画线部分提问） What  　do　 your parents  　have　  　to　 do every day？ 4. You can’t take photos in the library.（改为祈使句）  　Don’t　  　take　 photos in the library！ 5. Can Sam ask Cindy to help him with his English？（做出肯定回答） Yes ，  　he　  　can　. 三、 根据句意、汉语或首字母提示写出单词。 1. The young man sits in his office  　quietly　（安静地）. 2. Mr Brown often  　leaves　（离开） for Beijing to visit his parents on the weekend. 3. My grandmother  　feeds　（喂养） a lot of chickens， ducks， pigs and dogs. 4. － Shh！ You mustn’t make any  　n oise　 in the library. － OK， I know. 5. Peter is ill today， so he is  　absent　 from the English test. 四、完成句子 1. 你可以穿上你的毛衣吗? 今天很冷。Can you put on your sweater? It’s cold today. 2. 彬彬有礼，尊敬他人。 Be polite and treat others with respect . 3. 我可以把手机带到学校吗？ Can I bring the mobile phone to school? 4. 不要插队。 Don’t jump the queue . 5. 在图书馆，我们必须保持安静。In the library, we must keep quiet . 1 学科网（北京）股份有限公司 $$