1、,Period Two Language in Use,高中英语选修9外研新课标版,by prep. 1表静态的位置，意为“在的旁边”，相当于near，beside。His house stands by the river.他的房子位于河旁边。但He stands by me.他站在我旁边/他支持我。 2. 表动态的位置，意为“经过”，相当于past。I go by his office every day.我每天从他的办公室旁经过。,重点语法精析,3. 表移动的方向，意为“沿，经由，横过，越过”，相当于along, through, across, over。They went by th
2、e hill road.他们沿着山路去。 4表“在期间”，相当于during。He works by night, and sleeps by day.他在晚上工作，而在白天睡觉。 5意为“最迟在之前”，相当于not later than。I will come back by six oclock.我将在六点以前回来。,重点语法精析,6表数量的单位，意为“以计”。He is paid by the hour.他按钟点计报酬。The freight was charged by weight.运费以重量多少来计算。 7表相差的程度。He is my senior by three years.
3、他比我大三岁。 8表连续或渐进，意为“逐一”。He solved the problem step by step.他逐步解决问题。,重点语法精析,9意为“根据，依据”，等于according to。It is just three oclock by my watch.依我的手表，现在刚好是三点。 10表被动语态中的动作，意为“被”。He is respected by everybody.他被大家所尊敬。 11表方法、方式，意为“靠，以，由于”。Let him know by letter.用信通知他。He went to Japan by plane.他坐飞机去了日本。,重点语法精析,d
4、o/does 1助动词(1)用来构成疑问句或否定句。Do you like skating？你喜欢滑雪吗？(2)用在动词前来加强语气，表强调。He does like playing computer games. 他的确喜欢玩电脑游戏。(3)用来代替前面的动词。Tom speaks English better than John does.汤姆说英语比约翰好。,重点语法精析,2v.(1)表“做，从事”。Im busy doing my homework.我正忙着做作业。(2)表“进行”。My sister is doing well at school.我姐姐在校的情况挺好。(3)表“适合
5、；足够”。Can you lend me some money?你能借给我一些钱吗？Sure，will $ 20 do？当然可以，20美元够吗？,重点语法精析,if conj. 1引导宾语从句，意为“是否”，可用whether替代。I want to know if you can come tomorrow.我想知道你明天是否能来。 2引导条件状语从句，意为“假如”，可以是真实条件，也可以是虚拟条件。I will stay at home if it rains tomorrow. 如果明天下雨，我将呆在家里。If I were you, I would tell my mother the
6、 truth.如果我是你，我就会把事实告诉我妈妈。,重点语法精析,or 1或，或者Would you like tea or coffee？你喝茶还是咖啡？ 2否则Hurry up, or youll be late.快点，否则你会迟到。 3. 要么Either you or he is right.要么你是对的，要么他是对的。,重点语法精析,4也不(用于否定句)He cant read or write.他不会读也不会写。 5(引出解释性词语)或者说It weighs a kilo, or just over two pounds.这东西重一公斤，或者说两磅多一点。,重点语法精析,want
7、1v.(通常不用于进行时)(1)想要，要Do you want some more coffee？你还要些咖啡吗？(2)需要What this house wants is a good clean.这个房子需要好好打扫一下。The plants want watering daily.这些花草需要天天浇水。,重点语法精析,(3)需要在场You are wanted on the telephone.有电话找你。 2n.(1)需要的东西She spent her life pandering to the wants of her children.她一生都在设法满足子女的需要。(2)want
8、 of sth缺少，不足(3)贫困，贫穷,重点语法精析,Visitors to the slums were clearly shocked to see so many families living in want.到过贫民窟的人看到有这么多的家庭生活在贫苦之中显然震惊不已。 why 1adv.(用于问句)为什么，为何Why were you late？你为什么迟到？ 2conj.引导名词性从句。Tell me why you did it？告诉我你为什么这样做？,重点语法精析,3(反问)何必Why bother to write? Well see him tomorrow.还费事写信干什么？我们明天就见到他了。 4作关系副词，引导定语从句，意为“的原因”。The reason why he was late is that he was ill.他迟到的原因是因为他生病了。 5语气词，(表惊讶或不耐烦)意为“嗨”。Why Jane, it is you.嗨，简，是你。,重点语法精析,固定搭配：Why not.？Why dont you.? (表赞同或提出建议)好哇，为什么不呢？ Why ever？究竟为什么？ Why ever didnt you tell us before? 你为什么不早告诉我们呢？,重点语法精析,再见,
