九年级英语全册 Unit 13 We're trying to save the earth（第2课时）Section A（3a-3b）课件 （新版）人教新目标版

第二课时Section A (3a3b)Unit 13Were trying to save the earth! harmful形容词，意为“有害的”。常用于短语be harmful to中，意为“对有害”。eg：It is generally accepted that smoking is harmful to our health.吸烟有害健康，这是大家公认的。【拓展】harm作动词，意为“伤害；损害”；作名词，意为“危害；伤害；损害”。eg：It wouldnt do him any harm to work a bit harder.工作努力点对他没什么害处。There was a traffic accident in this street， but no one was harmed.这条街上发生了交通事故，但没有人受伤。“in the last/past一段时间”构成的表示时间的介词短语，意为“在过去的(时间)里”，常与现在完成时连用。eg：The company has grown rapidly in the last five years.这家公司近五年来迅速地发展壮大。 too.to.意为“太而不能”。too为副词，后接形容词或副词的原级；to为不定式符号，后接动词原形。eg：He is too young to go to school.他太小了，不能上学。重点词组归纳a bowl of一碗cut off切下；切断not only.but also不但而且no longer不再at the top of在顶部或顶端the food chain食物链in fact事实上such as例如so far到目前为止 一、根据句意及汉语提示完成单词。1 You will be punished if you break the (法律)2 I think it is a (科学的) way to solve the problem.3 Dont be (残酷的) to animals.Theyre our good friends.4 Polluted air and water are (有害的) to peoples health.5 More and more robots are used in the (工业)lawscientificcruel harmful industry 二、根据句意及汉语提示完成下列句子，每空一词。6 Theres snow (在顶部) the mountain.7 (到目前为止) we have planted more than 2， 000 trees.8 Its very important to keep the balance of (食物链) in the ocean ecosystem.9 (事实上)， she is only six years old now.10 When was the telephone (切断)?at the top ofSo far the food chainIn fact cut off 三、单项选择。( )11.The train travelled fast for us to see much outside the window.(2016，沈阳)A quite Bvery CtooDso( )12.What film do you like best?The Martian.It shows a lot of imagination， has a sense of humor.(2016，连云港)A too；to Bneither；nor Ceither；or Dnot only；but alsoCD ( )13.Look！The factory is sending out smoke.The government should do something to stop it.A nice Bharmful Cvaluable Dserious( )14.The number of the students in this international school by 1， 000 since last year.A increase Bincreases Chas increased Dhave increasedBC 四、从方框中选择合适的选项补全对话。(其中有两项多余)A：Hi， Mary！I didnt see you yesterday.15. B：Oh， I went to the cinema and saw a film.A：16. B：Its about animals.A：17. B：It was wonderful.But it also made me very sad.A：Did you learn a lot from the film?B：18. I learned a lot about the endangered animals.We cant see most of them on earth today.A：Sorry to hear that. CAFB B：I think we should do something to save them.Lets join the Love Animal Club first.A：19. I think the club must be helpful and interesting.B：I think so.A What is the film about?B Yes， I did.C Where did you go?D Thats a good idea.E How are you feeling now?F How do you like the film?G What should I do?D