1、北师大北师大北师大北师大 Unit 13 Lesson3 Unit 13 Lesson3 Making Guesses about PeopleMaking Guesses about PeopleLesson 3 Making guesses about PeopleObjectives Get the general ideas of the text by listening;Understand how to express guesses;Do an interview for the event of the missing students.At the end of this
2、lesson,youll be able to:Do you often watch news on TV?What news are you most interested in?When we watch TV serial plays,we want to know what will happen in the future.may mustcan cant mightWhich words do you think we will use to express our guess?Guess at the pictures 1.What might the two people be
3、 discussing about?2.How might they feel?3.What might they be doing?They might be discussing aboutThey may feel upset/sad/worriedThey might be on a camp/be caught in a rain/lose their way/be sheltering under a tree/They might feel hungry/cold/anxious/frightened by thunderListen to the dialogue and do
4、 the exercise.1.The two students were missing _.A.perhaps because they were separated from the other students.B.in a case.C.for the reason we dont know.2.The dialogue tells us _.A.The two students disappeared 3 days ago.B.My French tutor know where they are.C.People found them in a cottages.3.The di
5、alogue make various guessed except _.A.They must be frightened.B.They both are injured.C.They might have some food to eat.Listen to the dialogue and complete the gaps.A:Have you heard anything about the two missing students?I think my French tutor might know one of them.I saw she had tears running d
6、own her cheeks at lunch today and one of the other teachers gave her a hug.B:I heard about it from the news report on TV last night,but havent heard about anything more since then.A:Their friends are really upset and have been waiting anxiously for more news.B:I cant believe that theyve been missing
7、 in the mountains for three days now!They must be so (1)_!frightenedA:I wonder how they got lost and whose fault it was.B:They may have been(2)_ from the other students and couldnt hear anyone when the thunder started,or they might have(3)_ behind and taken the wrong path.separatedfallenA:Maybe.Or t
8、hey could have gone exploring on their own and lost their way back to the group.B:I hate to think how they must be feeling right now.Its so cold at the moment.They must be(4)_!I hope they have warm jackets made of wool.freezingA:They might be(5)_ in a cave.shelteringA:They cant be there.People would
9、 have looked there first,Im sure.B:Or they could be in one of those empty cottages near the pine trees right at the top of the mountain.B:True.Imagine how hungry they are!They cant exactly eat seeds like aquarelles and sparrows do!A:They might have(6)_ left from camping but they may not have any wat
10、er.some foodA:Me too.Their parents must be very(7)_.Itll be a real relief when theyre found.worriedB:And one of them might be bleeding or have a broken arm or leg.I really hope the someone finds them soon.Read the dialogue and answer the questions.1.How are their friends and parents feeling?Friends:
11、really upset;have been waiting anxiously for more newsParents:must be very worriedGrammar Modals for Guessing Look at the dialogue again and complete the gaps with modal verbs:must,may,may not,might,cant,could.1.I think my French tutor _ know one of them.2.They _ be so frightened!3.They _ have been
12、separated from4.They _ have gone exploring5.They _ be there.6.They _ have any water.mightmustmaycouldcantmay notWhat meaning do the sentences above express:A.decision?B.advice?C.guesses?Which of the modal verbs in above exercise express the following?a strong belief that something is/was truea stron
13、g belief that something is/was not truea possibility that something is/was truea possibility that something is/was not trueAnswers:Strong belief/true:Strong belief/not true:They cant be there.They must be so frightened!Their parents must be very worried.Possibility/not true:They may not have any wat
14、er.Possibility/true:I think my French tutor might know one of them.They may have been separated from They could have gone exploringI think my French tutor might know one of them.b)unlimited present timeLook at these sentences again and decide what they are talking about:a),b)or c)They might have fal
15、len behind.a)past eventThey might be sheltering in a cave.c)something happening nowSummary(form)Unlimited present(现在现在)Happening now(进行进行)Past(过去过去)情态动词情态动词 +do/be情态动词情态动词 +be doing情态动词情态动词 +have donemay/might have+PP(过去分词过去分词)must have+PP(过去分词过去分词)肯定句肯定句对过去对过去的推测的推测对现在对现在的推测的推测must be+n./adj.maybe/
16、must be+v-ingmust+v.(原形原形)cant have+PP(过去分词过去分词)cant have been+n./adj.对过去的推测对过去的推测对现在的推测对现在的推测否定句否定句cant be+n./adj.cant+v.(原形原形)Complete the gaps in the sentences with the modal verbs.More than one answer is possible.1.She goes out every weekend.She _ have young children.2.He looks depressed.He _ be
17、 having some problems.must,cant,may,might,might not,couldmight not/cantmay/might/could3.This woman looks like a scholar.She _ work at the university.4.His shoes are muddy.He _ be working in an office all day.could/might/maycant6.He often goes abroad.He _ be working for the Foreign Office.might/must/
18、may/could5.Her clothes are all very expensive.She _ be earning a lot of money.must/might/could/mayBest Choice1.-Do you know where David is?I couldnt find him anywhere.-Well.He _ have gone far-his coats still here.A.shouldnt B.mustnt C.cant D.wouldnt 2.-Excuse me.Is this the right way to the Summer P
19、alace?-Sorry,I am not sure.But it _ be.A.might B.willC.must D.can3.-Tom graduated from college at a very young age.-Oh,he _ have been a very smart boy then.A.could B.should C.might D.must4.-I heard they went skiing in the mountains last winter.-It _ true because there was little snow there.A.may not be B.wont be C.couldnt be D.mustnt be5.Jack _ yet,otherwise he would have telephoned me.A.mustnt have arrived B.shouldnt have arrived C.cant have arrived D.neednt have arrivedDo the exercise 10 and 11.Tomorrow lets look at whose sentences are the most wonderful.






