第 10 讲 祈使句, shouldshould 和 had shouldbetter 1.掌握祈使句, shouldshould 和 had shouldbetter 的基本构成及重点用法； 2.能在具体的语境中灵活运用祈使句, shouldshould 和 had shouldbetter。 祈使句 当我们向他人发出命令，提出要求或建议时，常使用祈使句。祈使句的祝愿时 you（听话人），通常不听话人），通常不 明确表示出来。 句式 结构 例句 Do 型：动词原形（听话人），通常不+宾语）+其他成 Have a seat here.这边坐。 分。 肯定句 Be 型：Be+n/adj+其他成分。 Be a good child!要做一个好孩子！ Let 型：Let+宾语+动词原形+其他成 Let me help you.让我来帮你。 分。 Do 型和 Be 型均在句首加 Don’t 构成。 Don’t be late for school!上学不要迟 到！ 否定句 Let 型的否定形式有两种： Don’t let him go. Don’t+let+宾语+动词原形+其他成分。 =Let him not go. Let+宾语+not+动词原形+其他成分。 反义疑问句 祈使句+will you/won’t you? Open the window,will you? Let us 不包括听话者在内，指示对听话 Let us play with snow,will you? 者说，反义疑问句的主语仍然为 you 让我们玩雪，好吗？ Let’s 是表示第一人称的祈使句，包含说 Let us play with snow,shall we? 话者，所以反义疑问句的主语为 we. 咱们玩雪吧，好吗？ ※（听话人），通常不1）有的祈使句在意思明确的情况下，动词可省略。 This way,please.=Go this way, please. (2) 有些祈使句可用 No 开头，用来表示禁止。 No smoking!禁止吸烟！ （听话人），通常不3）为了使祈使句听来比较客气，委婉，除了用 please 外，句末还可用 will you。 Read the text,will you?读一下这篇文章，好吗？ （听话人），通常不4）在祈使句的前面加上 do 可以加强语气，有 make sure(一定，务必)的意思。 Do remember to call me. 祈使句的答句常用一般将来时。 (5) --Don’t smoke here. --Sorry,I won’t. 1．Go along the street, _________ you’ll find the market opposite the bank. A．when B．and C．or D．though C．but D．or 2．Hurry up, ________ you won’t catch the bus. A．if B．and 3．—Joe is only six years old. ________ push him so hard. —But I want him to be successful in the future. A．No B．Not C．Don’t D．Doesn’t 4．I am going to listen to the radio. Please ________ any more. A．not talk B．talk C．don’t talk D．not talking 5．Don’t ________ paper on the ground. We should ________ our classroom clean. A．threw; keeping B．throw; keep C．to throw; to keep D．throwing; kept 6．________ the boy to a more comfortable place. A．Moved B．To move C．Moving D．Move 7．Please ________ any noise — my mother is a very light sleeper. A．not to make B．not make C．doesn’t make D．don’t make 8．Jim, ________ the door before the cat gets out! A．closing B．closed C．closes D．close 9．________ worried about me, Mum. I’ve grown up. A．Don’t be B．Don’t C．Not 10．—________ the corn into the popcorn machine, Linda. —OK, Mum. D．Not be A．Putting B．Put C．To put D．Puts C．Won’t D．Didn’t C．Yes, I will D．No, I won’t 11．—________ pick the flowers, Dale! —Oh, I’m sorry. A．Aren’t B．Don’t 12．—Don’t forget to post the letter! —________. A．Yes, I do B．No, I don’t 13．— Mum, ________ the door, please. I feel a little cold. — OK. A．closes B．close C．opens D．open 14．Please ________ smoke here. Look at the sign. A．no B．not C．don’t D．doesn’t C．is late D．be late 15．Don’t ________ for school again, Millie! A．late B．are late 16．—Please spend more time on your lessons from now on. —________. I’ll try my best. A．Yes, I will B．Yes, I do C．No, I don’t D．No, I won’t 17．________ take a bus to go the Palace Museum. A．Let’s B．Let C．What about D．Why don’t C．Practice well D．Of course C．eating D．to eat 18．________, and you will win the game! A．Keeping walking B．I hope not 19．Don’t ________ too much fast food. A．eat B．ate 20．—Jim, ________ your quilt after you get up in the morning. —OK, Mum. I’ll do it. A．fold B．folds C．folded D．to fold 21．Let’s walk as fast as we can, ________ we’ll be late for school. A．and B．or C．so D．but 22．—Annie, __________ on your mask (口罩) when you go out. —OK, Mom. A．to put B．putting 23．_________in bed. It’s bad for your eyes. C．puts D．put A．Don’t read B．Don’t to read C．Not read D．Not to read 24．—Mom, can I play computer games this evening? —Er, ________ your homework first. Then you can do it. A．finishing B．finish C．to finish D．finished 25．You ________ ask a lady about her age. It’s really impolite. A．shouldn’t B．couldn’t C．needn’t D．wouldn’t 26．You ________ drink and drive. It’s too dangerous. A．should B．shouldn’t C．need D．needn’t C．should D．shouldn’t 27．—I have a stomachache. —I think you _______ eat too much. A．could B．can 28．Mary, you ________ see a doctor, because I’m afraid your headache may get worse. A．may B．may not C．shouldn’t D．should 29．— We still need one person to play the game. — Try phoning Alex—he loves the game a lot and ________ be interested in this! A．should B．need C．can D．has to 30．—Could you please help me do my homework? —Sorry, I ________. You ________ do it by yourself. A．could；may B．couldn’t；should C．can’t；should D．can’t；may 31．Mario, you ________copy others’ homework. It’s not good for your study. A．needn’t B．shouldn’t