九上U4T3SB.ppt
Unit 4 Amazing Science,Section B,Topic 3 What do you know about Mars?,3,Work alone,Match the two columns to make sentences.,()1.Life may be()2.More satellites must be()3.Scientific research should be()4.Other planets may be()5.Aliens have not been,d,c,a,e,b,a.done carefully.b.seen by people.c.sent into space.d.found on other planets some day.e.visited in the future.,情态动词+be+donehave/has+been done,aliens/may/find,Aliens may be found in space.,clothes/can/see,Many beautiful clothes can be seenin the shop.,litter/mustnt/throw,Litter mustnt be thrown everywhere.,bike/should/repair,The bike should be repaired at once.,含有情态动词的被动语态的结构：情态动词+be+V.的过去分词,1.Aliens may be found in space.2.Many beautiful clothes can be seen in the shop.3.Litter mustnt be thrown everywhere.4.The bike should be repaired at once.,Whats the problem?Sams watch doesnt work.Johns pet pig is ill.The trees are dying.Nobody looks after Sandys daughter.,It should _ _ first.It should _ _ to the _ _.They should _ _ at once.She can be sent to _ _.,2,1,4,3,be repaired,be taken pet hospital,be watered,her grandmother,What should be done?,Listen to 1a,try to answer the following questions.,1.Who will take part in the space flight to Mars?2.What would Kangkang like to be when he grows up?,Astronauts from China,the United Statesand Russia.,Hed like to be an astronaut whenhe grows up.,Read 1a and practice in pairs.,I prefer science to dance.,prefer A to B 喜欢A胜过Beg:比起苹果来我更喜欢香蕉。,2.prefer doing A to doing Beg:汤姆比起跳舞来更喜欢看电视。,3.prefer to do.rather than do 宁愿做而不做eg:我宁愿看电视也不愿出去。,I prefer bananas to apples.,Tom prefers watching TV to dancing.,I prefer to watch TV rather than go out.,1.The astronauts can discover something about Mars.2.Kangkang should first master some basic computer skills.3.More and more things will be discovered in the future.4.Maria can perform ballet on the stage in the future.,1.Something new about Mars_ _ by the astronauts.2.Some basic computer skills_ _ by Kangkang.3.People will _ things in the future.4.Ballet _ on the stage by Maria in the future.,can,be,can be performed,Read 1a again.Discuss and complete the sentences.,discovered,should,be,mastered,discover,more and more,Sum up the structure and usage of the passive voice with modal verb.,cancouldmaymightmustshouldwould,be,及物动词的过去分词,teacher,doctor,scientist,actor,magician,astronaut,Have a discussion about the dreams or plans in the future together.,Why do you want to be a/an.,Careers（职业）reason how,What are you going to be when you grow up?,How to make it come true?,Talk about your dreams in groups.Give your reasons and tell how youll realize your dreams,want to be,would like to be,be going to be,feel like being,be interested in,have fun being,careers,achieve,realize,make come true,grow up,My dream,I am going to be a/an _ when I grow up.Because I am interested in _.In order to make my dream _ _,I must _ _.I hope I can _ my dream in the future.,Homework,Write a passage about Mars.,
