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1、how long how soon how often 用法how long,how soon和how often都含有how,并且都和“多长时间、多久”有关,但它们的用法不相同。 how long意为“多久、多长时间”,主要是对一段时间进行提问,答语通常是three days/weeks/months等时间段,它可用于各种时态。 How long do you stay in Beijing every year? 每年你在北京住多久? How long have they lived here? 他们住在这里有多久了? How long were you not at school las
2、t year? 去年你多久没上学? About two weeks. 约两周。 _ how soon意为“还要多久”,是对从某个基本时间到将来某动作结束或某动作发生这段时间提问,常用在一般将来时态的句子中,其答语通常是“in + 一段时间”。 How soon can you finish the work? 还要多久你能完成这项工作? In half an hour. 半小时后。 _ how often意为“多久次、是否经常”,用来提问在某一特定的时间进行某个动作的次数,答语通常是always,usually,often,sometimes,once/twice a day/month等。
3、How often do you get to school very early? 你多久早到校一次? Usually. 通常。 How often do you see a film? 你多久看一次电影? Once a month. 每月一次。 _ 自我测试 选择填空。 1. _ did the meeting last? About half an hour. A. How soon B. How long C. How far D. How much 2. _ will Ezhou-Huanggang Bridge be finished? In a few months. A. Ho
4、w soon B. How long C. How often D. How far 3. _ will it take you to get to the post office? About half an hour. A.How old B.How long C.How soon D.How often 4. _ do you write to your mother? Once a month. A. How many times B. What time is it C. How soon D. How often 5. _ a year does your school have
5、sports meetings? Twice a year. A. How often B. How soon C. How long D. How many times _ 答 案:1.B 2.A 3.B 4.D 5.A 一、either.or. either.or.意为或者或者;不是就是之意。表示两者之一,连接句子中两个并列的成分。例如: When the girl is happy, she either sings or dances. 那个女孩高兴时,不是唱就是跳。(此句中either.or.连接两个动词,因为主语是单数第三人称,谓语动词要用其相应的形式。) either.or.连接
6、两个主语时,其谓语动词应与最近的一个主语在人称和数上保持一致,这就是我们通常说的就近原则。例如: Either you or I am going there tomorrow. 明天要么你去那里,要么我去那里。 注意:如果把上句变成一般疑问句,助动词形式与主语you保持一致,所以要用are提问,而不是am。例如: Are either you or I going there tomorrow? 明天是你还是我去那里? Either you or he has lunch at school. 其一般疑问句应为:Do either you or he have lunch at school
7、? 是你还是他在学校吃午饭? 若要对either.or.句型进行否定时,只需把either.or.换成neither.nor.即可。例如: Either you or she is good at drawing. 变为否定句应为:Neither you nor she is good at drawing. 你和她都不擅长绘画。 我们还可以单独使用either,其意为两者中的任何一个。例如: There are many shops on either side of the street. 街道两边有许多商店。这个句子也可以这样表达:There are many shops on both
8、 sides of the street. 在街道两边有许多商店。 either用在否定句的句末,表示也的意思。例如: If you dont go there. I wont, either. 如果你不去那里,我也不去。 二、neither.nor. neither.nor.表示既不也不。其含义是否定的,可连接任意两个并列的成份。例如: She likes neither butter nor cheese. 她既不喜欢黄油也不喜欢乳酪。此句中neither.nor.连接两个宾语。当neither.nor.连接两个主语时,也应遵循就近原则。例如: Neither dad nor mum is
9、 at home today. 今天父母都不在家。 若将neither.nor.句型变为肯定句,只需把neither.nor.改为both.and.即可,同时谓语动词必须用复数形式。例如: Both dad and mum are at home today. 今天父母都在家。 还可以单独使用neither作主语,表示两者中没有一个。例如: Neither of them likes football. 他们俩都不喜欢足球。 neither或nor还有另外一种用法,就是当表达一个人没有做某事,另一个人也没做同一类事时,可用neither或nor进行简略回答,其结构为:Neither / Nor
10、+助动词 / 情态动词 / be动词+主语。例如: He doesnt go to school by bike. Neither / Nor do I. 他不是骑自行车上学,我也不是。 They didnt go to the park yesterday. Neither / Nor did we. 昨天他们没去公园,我们也没去。 在英语中,how是个疑问副词,what是个疑问代词。在它们引起的句式中,有时可以互相换用,来表达相同或相似的意思。 一、问天气:How?=Whatlike? 如: How was the weather yesterday? 昨天的天气怎么样? What was
11、 the weather like yesterday? 二、征求意见或建议:How about?=What about? 如: How about going skating? What about going skating?去滑冰怎么样? 三、问年龄:How old?=Whatthe age?你多大岁数了? 四、问看法:Howlike?=Whatthink of/about? 如: How do you like this film? 你认为这部影片怎么样? What do you think of this film? 五、问价钱:How much?=Whatthe price 价钱)
12、of? 如: How much is the book? Whats the price of the book? 这书多少钱? 六、“howwhat+可数名词单数”构成感叹句:How + adj. + a/ an+ n!=What + a/an +adj. +n. ! 如: How clever a girl she is! 她是个多么聪明的女孩子啊! What a clever girl she is! 七、“how/what+可数名词复数或不可数名词”构成感叹句,句子结构有所不同,汉语意思也稍有差异。 如: How high the mountains are!这些山多高啊! What high mountains they are!多高的山啊! 当然,有些由how引起的感叹句是不能用what进行转换的,如下列句子中的how不宜换用what。 How fast he is running!他跑得多快啊! How time flies!光阴似箭!