中小学教育资源及组卷应用平台
Unit 8 Section A Grammar focus-4c 学习任务单(含课下任务阅读训练及答案解析)
课程基本信息
学科 英语 年级 九 学期 秋季
课题 Unit 8 It must belong to Carla. Period 3 Section A Grammar focus-4c
教科书 书 名：义务教育教科书Go for it教材出版社：人民教育出版社
学习目标
1. 通过观看视频和图片，能够正确地完成句子，能够运用本单元所学习的must，could，might，can情态动词，表达对事物的推测；能够说出上边情态动词表述推断的区别。2. 通过阅读翻译Grammar focus中的句子，能够正确地完成句子，能够说出情态动词表达推断的用法和区别，能够说出情态动词表述推断的几种情况，能够说出belong to的结构和用法，能够说出belong to sb. 和be sb's. 用法相同，能够对它们进行句型转化。表示推测的用法。3.通过完成4a\4b\4c的练习，能够正确地选择答案，完成句子，能够把情态动词表示推断用法用在日常生活中。
课前学习任务 学习笔记
【学习任务一】词汇检测。1．n. 实验室 __________2．adv. 在户外；在野外 __________3．n. 外套；外衣 __________4．adj. 困倦的；瞌睡的 __________【学习任务二】单项选择。1．—What will the weather be like tomorrow —It ________ be rainy, cloudy or sunny. Who knows A．must B．might C．should D．can’t2．—Whose bike is this —I am not sure. It ________ be Mary’s.A．shall B．must C．might D．should3．—Is that Miss Liu over there —No. It ________ be her. She has gone to the USA. A．mustn’t B．can’t C．won’t D．needn’t 4．He ________ be in the restaurant. His car is just outside it!A．can B．can’t C．must D．mustn’t5．—I wonder if this smartphone is Mary’s.—It ________ belong to her. ________ is totally different from this one.A．mustn’t; Her B．can’t; Her C．can’t; Hers D．may; Hers
课堂学习任务
【学习任务一】 Let's watch a video and fill in the blanks.It _____ be very expensive.The people who do it ____ be very fit.That ______ be fun.It ____ be too challenging for us.It ______ be dangerous.It _____ be that dangerous to go on safari. So many people do it.【学习任务二】
Let’s find out the owners of the following things. 【学习任务三】Fill in the blanks with modal verbs.【学习任务四】Translate these sentences in GF and let’s read.Fill in the blanks according to grammar focus.1. 这是谁的排球 ______ ________ is this 这一定是卡拉的。她热爱排球运动。It _____ be _______. She loves volleyball. 2. —这是谁的发带？— ______ ____ ____ is this —它可能是梅的发带。或者可能属于 琳达。她们两人都是长头发。—It _____ be Mei’s hair band. Or it _____ belong to Linda. They ____ have long hair. 3. —那晚你看见了什么 — _____ did you see that night —我不确定，但肯定不可能是狗。它更大。我想也许是一头熊或一匹狼。— I’m ___ ____, but it _____ ___ a dog. It was bigger. I think it _____ ___ a bear or a wolf.Read the following sentences and find out the sentences with modal verbs(情态动词).情态动词（Modal verb）本身有一定的词义，表示语气的单词。但是不能独立作______，只能和_________一起构成谓语。情态动词用在行为动词前，表示说话人对这一动作或状态的看法，多用来表达能力、意愿、义务、许可，还可以表示推测。【学习任务五】观察以下句子，归纳总结表推测的情态动词的用法。Can you say out the usages of modal verbs that represent inference (表示推断) 1.表推测的情态动词的意思must__________ could/might__________ can’t__________2.情态动词_________(有/没有)人称和数的变化。3.情态动词后必须跟______________.情态动词表示推测的意义和用法1. must表示说话人对事物的推测可能性的程度非常大，意为“一定；准是”，表示________，只能用于________。如果要表示“一定不”，应该用______。如果询问可能性时，应该用can。如：她没接电话。她肯定是出去了。She isn’t answering the phone. She must be out.他肯定知道答案。He must know the answers.mustn’t 在英语中不能用于表示推测，但可以表示“禁止，不允许”之意。Students ________ go to swim in rivers by themselves. You mustn't late.Can you say out the usages of modal verbs that represent inference (表示推断) 2.may, might表示推测“可能性”时，是把握性不大的推测，意思是“可能”，“也许”。might不表示过去时态，might语气更委婉，可能性更小。may, might表推测时，可用于否定句，但不用于疑问句。如：他可能不在家，不过我也不确定。He __________ not be at home, but I’m not sure. 迈克为什么没来上课？他可能生病了。Why didn't Mike come to class He __________ be sick.【注意】may not/ might not 表示不太有把握的否定推测， 意为“可能不”.It might not be a bad idea to get a car alarm for your new sports car. You know new cars tend to attract thieves.3. can表示推测“可能性”时，一般用于否定句或疑问句。can’t意为“不可能”， 用于否定句,表____________。He ______ pick her schoolbag up. 他不可能拿了她的书包。She ______be at school .It’s Sunday today.can 在疑问句中意思是“会，可能” 。____ he know the answer 他可能知道答案吗？could 表示某事有可能发生或可能是事实。Don’t eat it. It _______ go bad. 不要吃它，可能坏了。【拓展】could 表推测时，可用于肯定句、否定句和疑问句。 它比 can 更委婉，更不确定。He couldn’t have understood. Where could it be 【学习任务六】情态动词表示推测的注意事项must表示可能性最大的肯定推测，意思是“一定、准是”。只能用于_______。 can’t表示可能性最大的_________，意思是“不可能；一定不”。He must know the answer. 他肯定知道答案。He can’t know the answer. 他肯定不知道答案注意：（1）情态动词表示推测时，无时态区别，只有语气差 别。表示推测情态动词的语气强弱顺序如下（由强 到弱）：must ＞ can ＞ could ＞ may ＞ might（2）含有must的句子（must表推测）变为否定句时，要用_____。如：He must be at home.He can’t be at home.【学习任务七】情态动词表示推测可以分为以下几种情况: 1. 情态动词+ do此结构表示对现在或将来情况的推测和判断。如：—Do you know where she is now —I think she ___________in Beijing. Don’t play with the knife. You could cut yourself.You must be hungry after a long walk.2. 情态动词+ be doing 此结构表示对现在或将来正在进行的情况的推测和判断。他一定在家做作业。He ______ ______ ______ his homework at home. 他们一定不在图书馆读书。They______ ______ reading in the library.There’s a lot of noise from next door. They ______________(have) a party.3. 情态动词+ have done 此结构表示对过去情况的推测和判断。The road is wet. It _____ _____ ______last night.昨天晚上一定下雨了。他可能已完成了工作。He ____________ ______ ________ the work. He can’t have gone to Shanghai because I saw him just now.他不可能去了上海，我刚看见他了。These people ______________________ the film before.(过去) 这些人以前可能看过这部电影。情态动词+ have been doing 此结构表示对过去正在进行的情况的推测和判断。你妈妈当时一定在找你。Your mother must have been looking for you at that moment.5. must/could/might/can’t be done sth. 表示被动语态的推测。 e.g.我的书包不可能被偷。My schoolbag ______ ______ ______.【学习任务八】What can you find 方框里两句都表示______________，不同点是：belong to后__________________________be动词后 _________________________________Do you know the difference in their usage belong (to)的用法belong用作动词，通常用作不及物动词。基本含义是“在原来该有的地方”,一般译为“属于”,“与…有关”。不可直接接宾语,常和介词to连用,指(主权方面的)“属于”,也指“是(社团、家族、社会阶层的)一员”。1 belong to sb. 可用来指某物属于某人 , to是介词，后跟名词，代词等。例: This book _________ me.这本书是我的。2 belong to sth.A）指与某物或某处有一定的关联，或者什么东西可以做什么用。例如：I___________ Shanghai. 我是上海人。This lid __________ this jar. 这个盖子是配这个瓶子的。B）指XX是某团体、组织等中的一员。例如：Do you _________ any clubs 你属于哪一个俱乐部吗？（也可译为“你参加了哪一个俱乐部了吗？”）在用法1中，说“sth. belong to sb.”也可以用“sth. +be +名词性物主代词或者人名’s的形式”。be sb’s (sb’s:___________________) =belong to sb( sb:____________) 1.The book must be Mary’s . The book must ________ _______ _______.2.The pen must belong to me. The pen must ________ _________.【学习任务九】Task 1: 4a.Choose the best way to complete each sentence using the words in the brackets.1. A: Where’s Jean B: I’m not sure. She __________ (is / might be / must be) in the laboratory.2. A: Everyone is going to the pool after school. B: Really It __________ (must be / can’t be / could be) hot outdoors.3. A: That’s the phone. B: Hmm. I wonder who it ___________ (must be / could be / should be).4. A: I wonder if these are Jim’s glasses. B: They ___________ (can’t be / might be / could be) his. He doesn’t wear glasses.5. A: I hear water running in the bathroom. B: It _________ (could be / must be / can’t be)Carla. She was thinking of taking a shower.Task 2:plete these responses1. A: Many people are wearing coats. B: The weather must be________ .2. A: Sally has been coughing a lot. B: She might be_________________________.A: This restaurant is always very crowed. B: The food ________________ .4. A: Whenever I try to read this book, I feel sleepy. B: It can’t _______________________________.Task 3: 3c.Look at this picture of a room. How much can you tell about the person who lives here Is it a boy or a girl What are his/her hobbies Discuss your ideas with a partner.【学习任务十】Class test一、用适当的情态动词填空。1. — Susan has bought a large house with a swimming pool.— It ______ be very expensive. I never even dream about it.2. — Listen! Is Mr. Green giving a report in the hall — No, it ______ be him. He has gone to Japan.3. Ann hasn’t come to school today. I think she ________________ be ill.4. The guitar _______________ belong to Alice. She likes playing the guitar.5. — I wonder if this is Jack’s book.— It ______ be his. It has Linda’s name on it.二、完成句子。1. 众所周知，长江被称为中华民族的“母亲河”。As we all know, the Yangtze River _____ ______ _____ a “mother river” of the Chinese nation.2. 一般来说，当一个人在气头上时，跟他谈话是没有用的。_________ ________, it’s no use talking to a person when he’s in a temper.3. 没有人知道这个问题的答案。因为这是一个世界未解之谜。Nobody knows the answer to this question. Because this is an _________ __________ in the world.4. 我感到自己仿佛跌入到某种奇特的平行时空里。I felt as though I had fallen into some kind of strange _______ ________.
课下学习任务
四、短文填空Sherlock Holmes and Dr. Watson were having a cup of tea at five, as they usually did, when the doorbell rang. “That 1 be Mrs. Brown. I was expecting her this evening,” said Sherlock Holmes. “No, it 2 be her. She called this morning while you were out to say she would not be able to make it this evening. She also said she 3 come tomorrow evening, but she would call again anyway to confirm it,” replied Dr. Watson. “Well, that’s very strange, my dear Watson. Mrs. Brown 4 have called this morning because I was with her all day till we parted for lunch. It 5 have been someone else pretending (假装) it was her,” said Sherlock Holmes. “But why Do you think something 6 have happened to the real Mrs. Brown ” replied Dr. Watson in a fearful tone (语气).The doorbell rang again. “Well, my dear Watson, the answer 7 be waiting at the door right now. You’d better go and see, but I’m afraid it is not Mrs. Brown. It 8 be the person who called this morning. So be careful,” said Sherlock Holmes. Dr. Watson hurried towards the door…答案及解析一、完形填空【参考答案】1．C 2．A 3．B 4．D 5．B 6．A 7．D 8．C 9．D 10．B【语篇解读】作者的所在的社区最近发生了一些奇怪的事情，每天晚上都会听到一些奇怪的声音。但就是找不到原因，使得每个人都不高兴。【详情解析】1．句意：然而，这些天，奇怪的事情在我们社区在发生，每个人是不开心的。A. interesting有趣的；B. exciting 激动的；C. strange奇怪的；D. terrible糟糕的。根据下文everyone is unhappy. Zhao Jun, the local school teacher is extremely 2 .When he was interviewed by the local newspaper, he said, "Every night we hear strange noises 3 our window.可知这里是说奇怪的事情。根据题意，故选C。2．句意：赵军，当地学校的老师极其担心。A. worried担心的；B. pleased高兴的；C. satisfied满意的；D. relaxed放松的。根据下文When he was interviewed by the local newspaper, he said, "Every night we hear strange noises 3 our window.可知，这里是说担心的，故选A。3．句意：每天晚上我们听见窗户外面奇怪的噪音。A. of……的；B. outside 在……外面；C. from 从……；D. inside在……外面；根据下文My wife thinks that is could be an 4 , but my friends and I think it must be teenagers having 5 可知是说窗户外面。故选B。4．句意：我的妻子认为那可能是一只动物。A. actor演员；B. accident事故； C. object物体；D. animal动物。根据下文but my friends and I think it must be teenagers having 5 可知，这里是说是一只动物。故选D。5．句意：但是我的朋友们和我认为一定是青少年们正在玩耍。A. trouble麻烦； B. fun有趣；C. lessons 课； D. sports运动；短语have fun表示玩得开心，玩得高兴。故选B。6．句意：我的父母报警了，但是他们不能找到任何奇怪的东西。A. find找到； B. think认为； C. make 使，制作；D. feel感到。根据下文They think it might be the 7 . I don't think so!可知，这里是说不能找到任何奇怪的东西。根据题意。故选A。7．句意：他们认为可能是风，但是我不这样认为。A. water水；B. laughter笑；C. music音乐；D. wind风。根据上文My parents called the police, but they can't 6 anything strange.可知下文是认为是风。根据题意，故选D。8．句意：赵军的邻居也不开心。A. crazy疯狂的；B. surprised吃惊的； C. unhappy不高兴的；D. mad生气的。根据下文"At first, I thought it might be a cat, but I can't see a cat and I still hear the noises outside.可知上文是不开心的意思。根据题意，故选C。9．句意：在我们社区的每个人是担心的，每个人有他/她自己的想法。A. ways方式；B. matters事情； C. habits习惯； D. ideas主意，根据上文Everyone in our neighborhood is worried可知下文是说每个人都有自己的想法。根据题意，故选D。10．句意：一定有某个东西正在拜访我们社区的家园。但是它是什么？A. cleaning清扫；B. visiting参观；C. breaking打破；D. moving移动。这里是there be句型的进行时表推测，其结构是there must be +主语+doing 的形式。根据题意，故选B。【点睛】完形填空题与单项选择题不同，它给出的是一篇意思较为完整的短文。做该题型试题时，首先应跳过空格通读全文，以全文为背景，联系句子的上下文进行推理和判断，从4个选项中选出一项进行试填。考生可以从词义用法、固定搭配、逻辑推理和上下文的联系等方面去考虑。最后应再把全文通览一遍，细心检查所选答案能否使短文上下连贯，前后呼应，词句通顺，使短文意思完整。检查时还应从语法、惯用法、逻辑推理和事情发生的情节等方面进行考虑，以达到准确无误之目的。第2小题是考查形容词词义辨析，根据上下文的语境可知答案。二、阅读理解【答案】1．C 2．B 3．D 4．A 5．A【导语】本文主要介绍帮助别人是件了不起的事，你可以学到新东西，过得开心。帮助别人的方法有很多。你可以帮助有困难的人、动物或环境。也可以捐赠钱或东西来帮助别人，作者还列举了一些帮助别人的方法，希望大家都行动起来。1．【详解】推理判断题。根据Charities are organizations that help others, for example, UNICEF or the World Wildlife Fund, You can help charities by giving your time, giving money or giving things that you own.可知本文提到的组织有UNICEF和the World Wildlife Fund，因为the World Wildlife Fund可以缩写为WWF。故选C。2．【详解】推理判断题。根据Some ways of fund-raising are:making cakes or biscuits to sell，doing a sponsored(赞助)activity, For example, family and friends give you money if you finish a long walk.可知做赞助散步，是为慈善事业筹集资金的方法，故选B。3．【详解】推理判断题。根据Some ways of volunteering are:visiting old people to talk to them or help themwalking dogs at an animal shelter可知，需要帮助遛狗，因此是为无家可归的，可怜的狗提供的地方，故选D。4．【详解】推理判断题。根据Helping others is a great thing to do, You can learn new things and have fun. You can help people, animals or the environment. It can make you feel good too! How can you help 可知，作者是为了介绍帮助其他人的方法，故选A。5．【详解】推理判断题。根据Helping others is a great thing to do, You can learn new things and have fun. You can help people, animals or the environment. It can make you feel good too! How can you help 可知，本文主要介绍了帮助其他人的方法，因此这是摘自杂志，故选A。三、阅读还原7选5【参考答案】1．A 2．E 3．D 4．F 5．G【语篇解读】本文介绍了世界上最高的山是否有“雪人”，一直以来都是一个谜团，暂时没有人知道真相。【详情解析】1．根据“This mystery has puzzled the world for years.”可知是没有人知道。A“没人知道。”符合语境。故选A。2．根据“They looked like the footprints of a very large man.”可知这里提到了脚印，E“但是男人在雪地里不穿鞋是不会去走路的！”符合语境。故选E。3．根据“Far off, he saw a very large animal standing on two legs.”可知这里提到了两条腿的某种动物，D“就在他看着的时候，它跑得很快。”符合语境。故选D。4．根据“He said it looked like a very large man.”可知这里提到了某种依据，说明可能会有雪人。F“他说看起来像个大块头。”符合语境。故选F。5．根据“But not until 1951 did a mountain climber bring back pictures of large footprints.”可知这里提到了照片，G“照片清楚地显示雪人用两条腿走路。”符合语境。故选G。四、短文填空【参考答案】【参考答案】1．must 2．can’t 3．may/might/could 4．can’t 5．must 26．may/might/could 7．may/might/could 8．must【语篇解读】本文讲述了因为门铃的响起而引起的一系列推测。【详情解析】1．句意：那肯定是布朗夫人。根据“I was expecting her this evening”可知此处表示肯定推测，需用must，故填must。2．句意：不，肯定不是她。根据“She called this morning while you were out to say she would not be able to make it this evening”可知此处是肯定推测不是她，因此需用can’t。故填can’t。3．句意：她还说明天晚上可能会来，但无论如何她都会再次打电话确认。根据“but she would call again anyway to confirm it”可知此处表示可能推测。may/might/could“可能”。故填may/might/could。4．句意：布朗夫人今天早上不可能打电话，因为我一整天都和她在一起，直到我们分开吃午餐。根据“because I was with her all day till we parted for lunch.”可知此处是肯定推测不是，因此需用can’t。故填can’t。5．句意：一定是别人假装是她。根据“have been someone else pretending (假装) it was her”可知此处表示肯定推测，需用must，故填must。6．句意：你认为真正的布朗夫人可能发生了什么事吗？根据“But why Do you think something…have happened to the real Mrs. Brown ”可知此处表示可能推测。may/might/could“可能”。故填may/might/could。7．句意：好吧，我亲爱的沃森，答案可能现在就在门口等着。根据“But why Do you think something…have happened to the real Mrs. Brown ”以及根据“the answer…be waiting at the door right now. You’d better go and see”可知此处表示可能推测。may/might/could“可能”。故填may/might/could。8．句意：一定是今天早上打电话的人。根据“It…be the person who called this morning. So be careful”可知此处表示肯定推测，需用must，故填must。
21世纪教育网 www.21cnjy.com 精品试卷·第 2 页 （共 2 页）
HYPERLINK "http://www.21cnjy.com/" 21世纪教育网(www.21cnjy.com)(共31张PPT)
Unit 8
It must belong to Carla.
Section A (Grammar focus-4c)
读写结合语法课优质课
人教新目标版 九年级(上册)
Learning Objectives
1. 通过观看视频和图片，能够正确地完成句子，能够运用本单元所学习的must，could，might，can情态动词，表达对事物的推测；能够说出上边情态动词表述推断的区别。
2. 通过阅读翻译Grammar focus中的句子，能够正确地完成句子，能够说出情态动词表达推断的用法和区别，能够说出情态动词表述推断的几种情况，能够说出belong to的结构和用法，能够说出belong to sb. 和be sb's. 用法相同，能够对它们进行句型转化。表示推测的用法。
3.通过完成4a\4b\4c的练习，能够正确地选择答案，完成句子，能够把情态动词表示推断用法用在日常生活中。
01 Lead in
Watch and fill
Let's watch a video and fill in the blanks.
It _____ be very expensive.
The people who do it ____ be very fit.
That ______ be fun.
It ____ be too challenging for us.
It ______ be dangerous.
It _____ be that dangerous to go on safari. So many people do it.
must
must
might
may
could
can't
情态动词
表推测
Let’s find out the owners of the following things.
Look and say
Who do these things belong to
Xiaolan
Guangyan
Huiyuan
Yuantai
Bumei
belong to 意为“属于，是……的”其中to是介词。
后接名词(短语)或代词(用宾格形式)作宾语。
belong to sb. 可与“be+名词性物主代词/名词所有格”互换。
… belong to sb. …属于某人 = … be sb’s ……是某人的
Look and say
Let’s find out the owners of the following things.
It _____ be Yuantai’s.
It _____ belong to Yuantai.
can’t
can’t
The owner is not a boy.
Xiaolan
Yuantai
Bumei
hair band 发箍
It _____________ be Xiaolan’s
or Bumei’s.
might / could
The owner has short hair.
It ____________ belong to
Xiaolan or Bumei.
might / could
It ______ be
Bumei’s.
must
It ______ belong to Bumei Bumei’s.
must
此处can’t 表示推断，意为“不可能”。通常与be连用。(否定推测用can't)
此处could/might表示推断，意为“可能”，通常与be连用。
此处must表示推断，通常与be连用，意为“一定是，肯定是”。 must这种表示推测的用法只用于肯定句中。
Look and say
Xiaolan
Guangyan
Bumei
The owner is a little child.
toy truck 玩具卡车
It _____ belong to Xiaolan.
can’t
It ____ be Xiaolan's.
It ______________ be Guangyan’s or Bumei’s.
can’t
might / could
It ____________ be Guangyan’s
or Bumei’s.
might / could
The owner is a little boy.
It _____ be
Guangyan’s.
must
It ______ belong
to Guangyan.
must
Because Xiaolan isn't a little child.
Let’s find out the owners of the following things.
Look and say
Let’s find out the owners of the following things.
Huiyuan
Yuantai
Guangyan
comic book 漫画书 / k m k/
The owner is a little boy.
It _______ be Huiyuan’s.
can’t
It ______________ belong to Yuantai or Guangyan.
might / could
The owner is thin.
It _____ be Guangyan’s.
must
Because Huiyuan is a girl.
这些词语均是_____________，用在这里表示_____________。
情态动词
推测和判断
Look and say
Fill in the blanks with modal verbs.
Guessing Game
I’m Lily.
I like dancing.
Lily _______________ be a dancer when she grows up.
could/may/might
此处could/might/may表示推断，意为“_____”，通常与be连用。
This football _____ be Lily’s.
It ______ be Li Ming’s.
can’t
must
I’m Li Ming.
I like playing football.
此处can’t 表示推断，意为“_______”。通常与be连用。(否定推测用can't)
不可能
可能
Think and say
How can we make inferences (做推断)
一定
可能
不可能
100%
probably true
20%~80%
possibly true
0%
almost not true
must
could
might
can’t
Read and translate
Translate these sentences and let’s read.
Whose volleyball is this It must be Carla’s. She loves volleyball.
Whose hair band is this It could be Mei’s hair band. Or it might belong to Linda. They both have long hair.
What did you see that night I’m not sure, but it can’t be a dog. It was bigger. I think it might be a bear or a wolf.
这是谁的排球？
一定是Carla的。她热爱排球运动。
这是谁的发带？
它可能是Mei的发带。或者可能属于Linda。她们两人都是长头发。
那晚你看见了什么？
我不确定，但肯定不可能是狗。它更大。我想也许是一头熊或一匹狼。
Read and fill
Fill in the blanks according to grammar focus.
1. 这是谁的排球 ______ ________ is this
这一定是卡拉的。她热爱排球运动。
It _____ be _______. She loves volleyball.
2. —这是谁的发带？— ______ ____ ____ is this
—它可能是梅的发带。或者可能属于 琳达。她们两人都是长头发。
—It _____ be Mei’s hair band. Or it _____ belong to Linda. They ____ have long hair.
3. —那晚你看见了什么 — _____ did you see that night
—我不确定，但肯定不可能是狗。它更大。我想也许是一头熊或一匹狼。
— I’m ___ ____, but it _____ ___ a dog. It was bigger. I think it _____ ___ a bear or a wolf.
Whose volleyball
must Carla’s
Whose hair band
could
might
both
What
not sure
can’t be
might be
Read the following sentences and find out the sentences with modal verbs(情态动词).
Whose volleyball is this It must be Carla’s. She loves volleyball.
Whose hair band is this It could be Mei’s hair band. Or it might belong to Linda. They both have long hair.
What did you see that night I’m not sure, but it can’t be a dog. It was bigger. I think it might be a bear or a wolf.
情态动词（Modal verb）本身有一定的词义，表示语气的单词。但是不能独立作______，只能和_________一起构成谓语。情态动词用在行为动词前，表示说话人对这一动作或状态的看法，多用来表达能力、意愿、义务、许可，还可以表示推测。
谓语
动词原形
表示推测的情态动词主要有 must, can, could, may, might, can’t等。
Read and find
观察以下句子，归纳总结表推测的情态动词的用法。
1.表推测的情态动词的意思
must__________ could/might__________ can’t__________
2.情态动词_________(有/没有)人称和数的变化。
3.情态动词后必须跟______________.
一定,肯定
也许,可能
不可能
没有
V原形
Read and translate
Look and fill
Can you say out the usages of modal verbs that represent inference (表示推断)
情态动词表示推测的意义和用法
1. must表示说话人对事物的推测可能性的程度非常大，意为“一定；准是”，表示________，只能用于________。如果要表示“一定不”，应该用______。如果询问可能性时，应该用can。
如：她没接电话。她肯定是出去了。
She isn’t answering the phone. She must be out.
他肯定知道答案。
He must know the answers.
mustn’t 在英语中不能用于表示推测，但可以表示“禁止，不允许”之意。
肯定推测
肯定句
can’t
Students ________ go to swim in rivers by themselves. You mustn't late.
mustn’t
Look and fill
情态动词表示推测的意义和用法
2.may, might表示推测“可能性”时，是把握性不大的推测，意思是“可能”，“也许”。might不表示过去时态，might语气更委婉，可能性更小。may, might表推测时，可用于否定句，但不用于疑问句。
如：他可能不在家，不过我也不确定。
迈克为什么没来上课？他可能生病了。
Why didn't Mike come to class He __________ be sick.
may/might
may/might
【注意】may not/ might not 表示不太有把握的否定推测， 意为“可能不”.
It might not be a bad idea to get a car alarm for your new sports car. You know new cars tend to attract thieves.
He __________ not be at home, but I’m not sure.
Look and fill
3. can表示推测“可能性”时，一般用于否定句或疑问句。
can’t意为“不可能”， 用于否定句,表____________。
He ______ pick her schoolbag up. 他不可能拿了她的书包。
can 在疑问句中意思是“会，可能” 。
____ he know the answer 他可能知道答案吗？
could 表示某事有可能发生或可能是事实。
Don’t eat it. It _______ go bad. 不要吃它，可能坏了。
情态动词表示推测的意义和用法
She ______be at school .It’s Sunday today.
can’t
can’t
Can
could
否定猜测
【拓展】could 表推测时，可用于肯定句、否定句和疑问句。 它比 can 更委婉，更不确定。
He couldn’t have understood. Where could it be
Look and fill
情态动词表示推测的注意事项
must表示可能性最大的肯定推测，意思是“一定、准是”。只能用于_______。 can’t表示可能性最大的_________，意思是“不可能；一定不”。
肯定句
否定推测
He must know the answer. 他肯定知道答案。
He can’t know the answer. 他肯定不知道答案
注意：
（1）情态动词表示推测时，无时态区别，只有语气差 别。表示推测情态动词的语气强弱顺序如下（由强 到弱）：
must ＞ can ＞ could ＞ may ＞ might
（2）含有must的句子（must表推测）变为否定句时，要用_____。
can’t
如：He must be at home.
He can’t be at home.
情态动词表示推测可以分为以下几种情况:
1. 情态动词+ do
此结构表示对现在或将来情况的推测和判断。
如：—Do you know where she is now
—I think she ___________in Beijing.
You must be hungry after a long walk.
might travel
2. 情态动词+ be doing 此结构表示对现在或将来正在进行的情况的推测和
判断。
Don’t play with the knife.
You could cut yourself.
他一定在家做作业。He ______ ______ ______ his homework at home.
must be doing
他们一定不在图书馆读书。They______ ______ reading in the library.
can’t be
There’s a lot of noise from next door.
They ______________(have) a party.
must be having
Look and fill
Look and fill
情态动词表示推测可以分为以下几种情况:
3. 情态动词+ have done 此结构表示对过去情况的推测和判断。
The road is wet. It _____ _____ ______last night.昨天晚上一定下雨了。
must have rained
他可能已完成了工作。He ____________ ______ ________ the work.
could/might have finished
He can’t have gone to Shanghai because I saw him just now.
他不可能去了上海，我刚看见他了。
These people ______________________ the film before.
(过去) 这些人以前可能看过这部电影。
may/might have seen
4. 情态动词+ have been doing 此结构表示对过去正在进行的情况的推测和判断。你妈妈当时一定在找你。
Your mother must have been looking for you at that moment.
5. must/could/might/can’t be done sth. 表示被动语态的推测。
e.g.我的书包不可能被偷。My schoolbag ______ ______ ______.
can’t be stolen
Read and fill
What can you find
方框里两句都表示______________，
不同点是：belong to后__________________________
be动词后 _________________________________
某物属于某人
直接加人名或人称代词宾格
要用名词所有格形式或名词性物主代词
Do you know the difference in their usage
Look and fill
belong (to)的用法
belong用作动词，通常用作不及物动词。基本含义是“在原来该有的地方”,一般译为“属于”,“与…有关”。不可直接接宾语,常和介词to连用,指(主权方面的)“属于”,也指“是(社团、家族、社会阶层的)一员”。
1 belong to sb. 可用来指某物属于某人 , to是介词，后跟名词，代词等。
例: This book _________ me.这本书是我的。
2 belong to sth.
A）指与某物或某处有一定的关联，或者什么东西可以做什么用。例如：I___________ Shanghai. 我是上海人。This lid __________ this jar. 这个盖子是配这个瓶子的。
B）指XX是某团体、组织等中的一员。例如：Do you _________ any clubs 你属于哪一个俱乐部吗？（也可译为“你参加了哪一个俱乐部了吗？”）
belongs to
belong to
belongs to
belong to
在用法1中，说“sth. belong to sb.”也可以用“sth. +be +名词性物主代词或者人名’s的形式”。
be sb’s (sb’s:___________________) =belong to sb( sb:____________)
名词所有格/名词性物主代词
名词/代词的宾格
1.The book must be Mary’s . The book must ________ _______ _______.
2.The pen must belong to me. The pen must ________ _________.
belong to Mary
be mine
Look and fill
4a
Choose the best way to complete each sentence using the words in the brackets.
1. A: Where’s Jean
B: I’m not sure. She __________ (is / might be / must be) in the laboratory.
2. A: Everyone is going to the pool after school.
B: Really It __________ (must be / can’t be / could be) hot outdoors.
3. A: That’s the phone.
B: Hmm. I wonder who it ___________ (must be / could be / should be).
4. A: I wonder if these are Jim’s glasses.
B: They ___________ (can’t be / might be / could be) his. He doesn’t wear
glasses.
5. A: I hear water running in the bathroom.
B: It _________ (could be / must be / can’t be)Carla. She was thinking of
taking a shower.
could be
can’t be
must be
might be
must be
n.实验室
adv.在户外
Look and fill
4b
Complete these responses
1. A: Many people are wearing coats.
B: The weather must be________ .
2. A: Sally has been coughing a lot.
B: She might be_________________________.
A: This restaurant is always very crowed.
B: The food ________________ .
4. A: Whenever I try to read this book, I feel sleepy.
B: It can’t _______________________________.
cold
be interesting
must be delicious
/having a cold
ill
/sick
Look and say
Look at this picture of a room. How much can you tell about the person who lives here Is it a boy or a girl What are his/her hobbies Discuss your ideas with a partner.
4c
A：It could / might / can't be ... because ...
B：I guess so / I don’t think so. But it
might / could / must be ... because ...
A：The person might like music because
there is a guitar in the room.
B：I think so. The person could like sports because there is a volleyball in the room.
Language points
sleepy的用法
sleepy做形容词，意为“困倦的；瞌睡的”。
服了药之后，我感到困倦。After taking the medicine, I felt sleepy.
词形转换
sleepn.&v.睡觉 sleeping adj.睡着的
asleep adj.睡着的→fall asleep入睡
sleepy adj.困倦的→feel sleepy感到困倦
要点辨析 sleepy，asleep
sleepy 形容词，意为“困倦的，瞌睡的”，既可做定语，也可做表语。
asleep 形容词，意为“睡着的”，只能做表语，不能做定语。
Look at the sleepy child.看那个昏昏欲睡的孩子。Tom was too excited to fall asleep last night.昨晚汤姆太兴奋了，以至于无法入睡。
Language points
Whenever I try to read this book, I feel sleepy.无论何时我试图去读这本书，我都感到困倦。（P60）
whenever的用法
whenever做连词，意为“在任何……的时候；无论何时”，引导让步状语从句，相当于no matter when。
无论何时我们遇到困难，他们总来帮助我们。Whenever/No matter when we met with difficulties, they came to help us.
注意 “特殊疑问词+ever”构成的单词还有whoever（无论谁），wherever（无论在哪里），whatever（无论什么），however（无论怎样）等，引导让步状语从句时，都可以和“no matter+疑问词”进行替换。
Whatever you do, you must do it well.=No matter what you do, you must do it well.无论你做什么，必须做好它。
Class test
一、用适当的情态动词填空。
1. — Susan has bought a large house with a swimming pool.
— It ______ be very expensive. I never even dream about it.
2. — Listen! Is Mr. Green giving a report in the hall
— No, it ______ be him. He has gone to Japan.
3. Ann hasn’t come to school today. I think she ________________ be
ill.
4. The guitar _______________ belong to Alice. She likes playing the
guitar.
5. — I wonder if this is Jack’s book.
— It ______ be his. It has Linda’s name on it.
must
can’t
may/might/could
can’t
may/might/could
Homework
Recite the sentences in Grammar Focus and remember the Grammar.
2. Write a passage according to the instruction.
假设今天是星期天，你正在家里午睡，突然听到敲门声，请你根据表格中的信息，写一篇短文来判断是谁，并给出判断理由。
要求：1.短文流畅、连贯；2.60~80词。开头已给出，不计入总词数。
There is a loud knock at the door. The knock wakes me up. Who is it It can’t be my father or mother, because they are both staying at home. It can’t be a thief. The thief is afraid，and it’s impossible for him to knock at the door. It may be my neighbor. Maybe he wants some help. Oh, it must be my aunt. She often comes to visit us on Sunday.
谢谢
21世纪教育网（www.21cnjy.com)
中小学教育资源网站
兼职招聘：
https://www.21cnjy.com/recruitment/home/admin
