1、Section Grammarneed的用法语 境 自 主 领 悟先观察原句后自主感悟1.In addition, you need to know how long you should stay, and when you have to leave.2.You neednt worry about situations like these if you have good social skills.3.In some countries, for example, you have to arrive on time at a party; in other countries, y
2、ou dont need to.4.My American friend Tom spoke good Chinese, so I didnt need to translate the speech for him.5.I was the first to go there.I neednt have gone there so early.1.句1、句3和句4中的need为实义动词，后接动词时需加不定式符号to；句2和句5中的need为情态动词。2.句4中didnt need to do表示“过去没必要做，实际上也没做某事”；句5中neednt have done表示“过去没必要做，实际上
3、却做了某事”。语 法 精 要 点 拨考点一need的基本用法1用作实义动词，后可接名词、代词、不定式和动名词，有时态、人称和数的变化。My father needs three men to help him.我的父亲需要三个人帮助他。The doctor said he needed an operation.医生说他需要手术。You dont need to worry about me.你不必为我担心。名师点津当need的主语与need后面的动词是动宾关系时，动名词的主动形式表示被动含义，即need doing相当于need to be done。The room needs clean
4、ing/to be cleaned, but I only have time on Sunday.房间需要打扫，但我只有周日有空。2用作情态动词，后接动词原形，常用于否定句和疑问句中。You neednt finish that work today.你今天不必把那项工作做完。Need he do his homework first?他需要先做作业吗？3由need引起的一般疑问句中，肯定回答用must或have to，否定回答用neednt或dont have to。Need I answer the question? 我需要回答那个问题吗？Yes, you must(have to)/
5、No, you neednt(dont have to)是的，你必须回答。/不，不必了。即时训练1完成句子He is only a meter tall, so he doesnt need(不需要) a ticket.We need to make sure(需要确保) that our plan will be well carried out.You neednt/dont need to water the flowers(没必要浇花) because its going to rain.考点二didnt need to do与neednt have donedidnt need to
6、 do表示“过去没必要做某事，实际上也没做”；而neednt have done则表示“本不必做某事，但实际上已经做了”。I didnt need to go to school this Sunday, so I didnt get up until 9 am.我这个星期天不必上学，因此我直到早上九点才起床。(我不必上学，也没去学校)Its quite warm today.You neednt have worn your coat.今天很暖和，你本不必穿大衣的。(你本不必穿大衣，但却穿了)即时训练2完成句子You neednt have hurried(不必这么匆忙)，there is
7、plenty of time.I didnt need to go to the office(不必去办公室) yesterday so I wanted shopping with my mother.语 法 应 用 落 实.单句语法填空1He needs(need) to win this game to stay in the match.2We need to make(make) sure our plan will be carried out.3Its obvious that the garden needs watering/to be watered(water). 【导学
8、号：75832001】4What a pity! You could have entered free you neednt have bought(buy) a ticket.5Dr.Smith said that he needed(need) no payment for his work.6We dont need to get(get) into an argument over this.7She spoke good English so I didnt need to translate(translate) the conversation for her.8You nee
9、dnt have written(write) such a long article.Three hundred words are enough.单句改错1The house badly need a coat of paint.needneeds2He was studying at school, so he didnt need serve in the army.serve前加to3I love the weekend, because I neednt to get up early on Saturdays and Sundays.去掉to4Need I pay a certa
10、in amount of money to use your telephone?Yes, you need.第二个needmust5I didnt need take a taxi to the airport last Friday because my father sent me there using his car.need后加to6You neednt come here in person; a letter would have been e前加have7We mustnt have bought so much food now that Suzie wont be with us for dinner.mustntneednt8I got to the meeting room at 10 oclock, but there was no one so I couldnt have arrived so early.couldntneednt