专题二 情态动词could和should
1．—Could you help me do the dishes
—No, I ________. I cut my finger and I’m trying not to get it wet.
A．couldn’t B．mustn’t C．needn’t D．can’t
2．—Mom, _________ I hang out with my friends this weekend
—Yes, you can. But you _________ finish your homework first.
A．must; should B．could; might C．could; should
3．— Excuse me, sir. ________ you tell me how to take a taxi by “Gaode”
— With pleasure. I’ll show you.
A．Could B．Should C．Must
4．—Mum, ________ I go shopping with you
—Yes, you ________. But you have to finish your homework first.
A．could; can B．could; could
C．must; can D．must; could
5．—Mom, ________ I give away these books to the poor children
—Sure, I’m glad to hear that.
A．should B．could C．must
6．My brother is a smart boy. He ________ read when he was five.
A．must B．should C．would D．could
7．—Mom, ________ I hang out with my friend, Lily
—Sure, but you have to come back before 9 o’clock.
A．would B．should C．must D．could
8．—________ I play basketball with my classmates after school
—Of course.
A．Will B．Must C．Need D．Could
9．—We need to tell students about the School Day next week.
—Let’s hand out notices, or we ________ put up signs.
A．could B．must C．have to
10．— I forgot to bring my dictionary. Could I use yours
— Yes, you _______.
A．can B．must C．could
11．—________ I watch a movie with Ken, Mom
— Sorry, you can’t. You have so much homework to do.
A．Could B．Will C．Need D．Must
12．—________ I stay up late to watch a ball game
— No, you ________. You’ll have a test tomorrow.
A．Need, mustn’t B．Must, needn’t C．Can, couldn’t D．Could, can’t
13．—Excuse me, ________ you please tell me where I can post a letter
—________. Turn left. There is a post office on Fifth Road.
A．could; Sure B．could; Sorry
C．will; Sounds great D．will; Good idea
14．—Mom, ________ I invite my friends to a party
—Sorry, you ________. You have a test on Monday.
A．could; can’t B．can; mustn’t C．must; couldn’t
15．—Could I go to a movie this evening, Mom
—________. You should prepare for your math exam.
A．Yes, you could B．No, you can’t
C．No, you couldn’t D．Yes, you can
16．—In order to realize Chinese modernization, what can we youth do
—You ________ communicate with the world equally, share your own opinions, make your voices heard, and tell the world who you are.
A．must B．mustn’t C．should D．will
17．— 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
18．—Jimmy broke your cup! But why weren’t you angry
—It’s just a cup! Why __________ I care any more about such things.
A．should B．could C．might D．must
19．In order to save more space on the phone, we ________ set up the apps that are not often used.
A．can B．can’t C．should D．shouldn’t
20．Your poster ________ be bright-colored to keep the viewers’ attention.
A．should B．need C．can D．may
21．Life can change to be harder sometimes, then we ________ change ourselves to be stronger. Never say you can’t.
A．may B．should C．may not D．shouldn’t
22．History is the best textbook. We will move forward, but we ________ never forget what we have experienced.
A．need B．should C．might D．can
23．We’re never going to forget the tragic history. And I don’t think we ________.
A．may B．might C．have to D．should
24．In some cities the air is heavily polluted because of traffic. We ________ work harder to protect our world.
A．may B．can C．might D．should
25．—I’m so worried about my parents! Can you help me
—I think you ________ ask the police for help.
A．should B．need C．will D．would
参考答案：
1．D
考查情态动词。couldn’t不能；mustn’t禁止；needn’t不必；can’t不能。根据“Could you help me do the dishes ”可知，这里的Could表示委婉的请求，不是过去式，因此否定回答应用can’t。 2．C
考查动词辨析。must必须；could可以；should应该；might可能。根据“Yes, you can.”可知应用could提问，表示委婉请求；根据“But you ... finish your homework first.”可知出去玩之前应该先完成作业。故选C。
3．A
考查情态动词用法。Could能；Should应该；Must必须。根据“Excuse me, sir. ...you tell me how to take a taxi by ‘Gaode’ ”可知，本句询问是否能告诉我怎样通过“高德”坐出租车，需用Could，此处只表委婉语气，不表过去时态。故选A。
4．A
考查情态动词。could可以，表示委婉语气；can可以；must必须。根据“I go shopping with you”可知此处是请求许可，排除CD；could表示委婉语气时，回答用can。故选A。
5．B
考查情态动词的用法。should应该；could可以；must必须。根据“Sure, I’m glad to hear that”可知，此处是在询问是否可以做某事，所以应该使用could。故选B。
6．D
考查情态动词。must必须；should应该；would将；could能。根据“He...read when he was five.”可知，此处表示“会读书的能力”，且时态为一般过去时，需用can的过去式could。故选D。
7．D
考查情态动词。would将；should应该；must必须；could能，表委婉请求。根据“I hang out with my friend, Lily ”可知，此处表示委婉的请求。故选D。
8．D
考查情态动词。will将要；must必须；need需要；could可以，表委婉礼貌的请求。根据语境和“Of course”可知，问句表示请求。故选D。
9．A
考查情态动词。could可以，can的过去式；must必须，语气强烈；have to不得不，表示客观需要去做某事。根据“or we...put up signs.”可知此处应表示可以贴标志，could意为“可以”，用于表示委婉、客气地提出建议。故选A。
10．A
考查情态动词。can能够；must必须；could可以。根据“Could I use yours ”可知，这里的could表示委婉语气，肯定回答时用can，不用could，故选A。
11．A
考查情态动词辨析。Could可以；Will将要；Need需要；Must必须。根据“Sorry, you can’t.”可知，用could提问，表示委婉语气。故选A。
12．D
考查一般疑问句。Need需要；Must必须；Can能；Could表示希望得到肯定答复的请求；needn’t不需要；couldn’t不能；can’t不能；mustn’t禁止。根据“I stay up late to watch a ball game ”可知，第一个设空处表示请求，排除A、B两个选项。第二个空结合“No, you”可知，应说你不能，且该句是一般现在时，排除C。故选D。
13．A
考查could的用法和情景交际。could可以；will将要，会；Sure当然；Sorry抱歉；Sounds great听起来很棒； Good idea好主意。根据“...you please tell me where I can post a letter”可知，此处是问路，表示委婉语气用could。根据“Turn left. There is a post office on Fifth Road.”可知，回答者愿意帮忙，因此“sure (当然)” 符合语境。故选A。
14．A
考查情态动词。could能，是can的过去式，可以表示请求，比can语气更委婉；can’t不能；mustn’t禁止，不允许；must必须；couldn’t不能。第一个空表示请求，用can或could，故排除C；第二个空是否定回答，表示“不能”can’t。故选A。
15．B
考查一般疑问句。根据“Could I go to a movie this evening, Mom ”可知，此处could表示一种委婉的语气，回答是要用can来回答。又根据“You should prepare for your math exam.”可知，需要准备考试，所以不能去，因此是否定回答。故选B。
16．C
考查情态动词。must必须；mustn’t不允许；should应该；will将会。根据“what can we youth do”可知，对方在询问建议，回答需用should表示“应该”。故选C。
17．A
考查情态动词辨析。should应该；need需要；can能，可以；has to不得不，只得。根据“he loves the game a lot”可知，他很喜欢玩游戏，因此推测他应该会对这个游戏感兴趣，可用情态动词should表推测。故选A。
18．A
考查情态动词辨析。should应该；could能；might可以；must必须。Why should I...“我为什么要……”符合语境，表示没有必要为这样的小事生气。故选A。
19．D
考查情态动词的用法。can能够，可以，表示能力或许可；can’t不能；should应该，表示建议或责任；shouldn’t不应该。根据前半句“In order to save more space on the phone”可知为了节省空间，是不应该安装不常用的软件，应用“shouldn’t”。故选D。
20．A
考查情态动词。should应该；need需要；can能够；may也许。根据“be bright-colored to keep the viewers’ attention”可知，此处表示为了保持观众的注意力，海报应该是明亮的颜色。
21．B
考查情态动词。may可能；should应该；may not可能不；shouldn’t不应该。根据“Never say you can’t.”可知，前文是表示应该改变自己变得更强大。
22．B
考查情态动词辨析。need需要；should应该；might可能；can能够。根据“We will move forward, but we… never forget what we have experienced”可知，此处表示建议，不应该忘记我们所经历的，故选B。
23．D
考查情态动词用法。may可以；might可能；have to不得不；should应该。根据“I don’t think”可知，句子为否定前移，意思为“我认为不……”，故选D。
24．D
考查情态动词辨析。may可能；can能够；might可能，may的过去式；should应该。根据上文“the air is heavily polluted because of traffic”可知，空气污染严重，因此这里是说我们应该更加努力保护我们的世界。
25．A
考查情态动词辨析。should应该；need需要；will将会；would将会。根据“I think you…ask the police for help.”可知，此处表示建议，应该说“应该”。
