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Unit 13 We’re trying to save the earth! 第四课时Section B(2c~Self Check)学案 (含答案)

日期:2024-05-09 科目:英语 类型:初中学案 查看:17次 大小:1136430Byte 来源:二一课件通
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中小学教育资源及组卷应用平台 第四课时(Section B 2c—Self Check) 1.though此处作连词,引导让步状语从句,意为“尽管;虽然”,相当于although。 though/although引导的让步状语从句不能与but, however连用,但可与yet,still连用。 尽管他是个孩子,但是他知之甚多。 (正)Though/Although he is a child,he knows a lot. (正)He is a child,but he knows a lot. (正)Though/Although he is a child,yet he knows a lot. (误)Though/Although he is a child,but he knows a lot. 2.need作实义动词,意为“需要”,后面接名词、代词、动词一ing形式及带to的动词不定式作宾语。need后面接动词ing形式时,动词ing形式表被动。此时主语常为某物。 (1) need sth“需要某物”。 I need your help.我需要你的帮助。 (2)need to do sth“需要做某事”。 Do you need to go at once?你需要马上走吗? (3) need doing/need to be done“(某事)需要被做”。 The bridge needs repairing. =The bridge needs to be repaired这座桥需要(被)修。 ①need还可用作名词,“需要”。A friend in need is a friend in need患难之交方是真朋友。/患难见真情。 ②need作情态动词时,意为“需要;必须”,无人称或数的变化,后接动词原形。 You needn't worry.你不必担心。 由need引出的一般疑问句,肯定回答常用must或have to,否定回答常用needn't。 —Need I answer the question?我需要回答那个问题吗? —Yes,you must/Yes,you have to.是的,你必须回答。/No,you needn't不,不必了。 3.worse and worse意为“越来越糟”,其结构为:“比较级+and+比较级”或“more and more+原级(多音节或部分双音节词)”,意为“越来越……”。 He is getting taller and taller. The flowers are more and more beautiful. 比较级的常用句型: ①“甲+be+形容词比较级+than+乙”或“甲十实义动词十副词比较级+than+乙”, “甲比乙……”。Tom is taller than Kate. I got up earlier than my mother this morning. ②“甲+be +the+形容词比较级+of the two+...”意为“甲是两者中较……的”。 Look at the two boys. My brother is the taller of the two. ③“the+比较级,the+比较级”意为“越……,越……”。 The busier my mother was,the happier she felt.我母亲越忙,她感到越快乐。 本单元短语: 短语聚焦: save the earth拯救地球 2.noise pollution噪音污染 3.solve the problem解决问题 4.cut down减少 5.be good for对……有益 6.go shopping去购物 7.make a difference起作用 8.hear of听说 9.cut off割掉 10, not only...but also.不但……而且… 11. be harmful to对……有害 12. at the top of the food chain在食物链顶端 13. worse and worse越来越糟 14. take part in参加 15. not…any longer不再 16. begin with以……开始 17. turn off关掉 18. pay for付费;付出代价 19. add up加起来 20. take action采取行动 21. throw away奶掉;抛弃 22. put sth to good use好好利用某物 23. pull...down拆下;摧毁 24. upside down上下颠倒; 25. win a prize获奖 26. set up建立 27. be known for因……而闻名 28. look like看起来像 29. bring back恢复;使想起 30.in the ocean's ecosystem在海洋生态系统 用法荟萃: 1.try to do sth尽力做某事 2.play a part in doing sth.多加做某事 3.used to do sth过去常常做某事 4.instead of doing sth.代替做某事 5.start doing sth*开始做某事 6.remember to do sth.记得去做某事’ 7.can,t afford to do sth担负得起做某事 8.by doing sth通过做某 ... ...

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