This is English 3This is English 3开放英语开放英语 3 (U13)3 (U13)Book 3Book 3Unit 13Unit 13 Education at School and Education at School and UniversityUniversitySection 1 Activities 19Section 2 Activities 1019 Study TipReview ReminderPurposesPurposesvStudy vocabulary related to education and university studies;vLearn vocabulary to describe education systems and student life;vStudy modal verbs of obligation;vStudy the difference between the gerund and the infinitive.vStudy if and whenActivity 1Activity 1Model verbs of obligationModel verbs of obligation1. must:必须 (主观意志) 必定(猜测)vThe students must wear the uniforms in many middle school.vYou must hand in your exercise- books after class today.vYou mustnt learn use your mobile phones in class.vMust you learn English course?Yes, we must. No, we neednt.He must be in the room. The light is on.2. 2. have tohave to不得不不得不, ,必须必须 ( (客观要求客观要求) )vThe mother has to cook for her family after work.vI have to meet my brother because he is new here.vYou dont have to see me on purpose.vHe didnt have to finish the work last week.vDo you have to return home this afternoon?Yes, I do. No, I dont.Language PointsLanguage Pointsa range of: a variety of; all kinds ofvThe children study a range of basic subjects in the primary school.vThere are a range of books and magazines in the library.vVisitors come to the Center for a variety of reasons. vThe roads are full of a whole variety of vehicles.Activity 9Activity 9 if if and and whenwhenvIf I study hard and carefully I can pass the final exam.vWe will go to climb the mountain if it doesnt rain.vUnless you get up in no time youll be late for school.vWhen you come back Ill tell you the story.vWhat are you going to do when you are free tomorrow?the gerund:the gerund:动名词动名词suggest, consider, mean, involve, enjoy, suggest, consider, mean, involve, enjoy, mind, finishmind, finishvHave you finished reading these novels? vHe suggested having a conference the next day.vThe Community Service means helping the people around you.vDo you mind smoking in the room?vThe work involves doing at night.the infinitive:the infinitive:不定式不定式 learn, expect, pretend, dis-agree, demand, learn, expect, pretend, dis-agree, demand, hope, wish, would likehope, wish, would likevYou can learn to swim only in the river.vWe are expecting to see the visitors at once.vThe boy is pretending to be sleeping there.vTom (dis)agreed to make this decision.vThe students hope / wish to go to the university.vWe wont demand to get his participation.difference between the gerund difference between the gerund and the infinitiveand the infinitivelike, try, prefer, remember, forget, stopvDo you like to swim this afternoon ?(表示 一次性的行为) Do you like swimming in the pool?vHe prefers to watch TV to go to see the film tonight. He prefers watching TV to going to see the film.vPlease try to speak again. Please try finishing the task.Activity 13Activity 13 Language PointsLanguage Points1. stick to: continue at, be faithful tovTry to make a budget for each term and stick to it.vYou must stick to the principle under any circumstances.vHe didnt stick to his promise.vThe soldiers always stick to their country.2. keep in.2. keep in.v throughout your years here try to keep things in perspectivevPlease keep these expressions and new words in your mind.vPlease keep the secret in.phrases with “keep”vKeep off the fire / grass.vKeep on walking / asking questions.vKeep up your courage.vKeep up with the latest developmentvKeep her from smoking.3. take up: begin3. take up: beginvIts great chance to take up a completely new hobby.vMany bars take lots of students on in the evening and at weekend.vThe Commission is committed to take action / steps to improve standards in hospital through Britain.vIt takes time to adjust to a new time zone.vTravelers should take steps to ensure that