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1、我也来发表一下见解： manage to do sth.准确的意思是：成功地做到（了）某事，是有明确结果的。也就是说 A managed to do sth.=A succeeded in doing sth.而try to do sth.指的是努力做某事，try doing sth.意思是试着做某事。后两者动作能不能“成功”都不太确定。try doing sth.往往隐含着做某事把握不是很大，还有些犹豫，可能会失败，还要重试的意思。至于你说到的manage也有一般现在时，并不表示做事的把握，也表示（成功）结果，这种情况表示经常发生的动作，这种情况比较少见。 声明一下，这是权威解释。本人从事大
2、学英语教学多年了！一、基本用法 as . as 比较句型，中间插入的是形容词或副词的原级。意思是达到与之相同的程度。如：He is as strong as a horse. 他力大如牛。 二、习惯用法 1. as soon as 意思是一.就.，引导一个时间状语从句。如：Ill call you as soon as I finish my homework. 我一完成我的作业，就给你打电话。 2. as long as 意思是长达.之久；只要.。如：She has searched the information about dinosaurs on the Internet as lon
3、g as three hours. 她在因特网上搜索有关恐龙的信息已经长达三个小时。 3. as much as 意思是多达.；与.一样多。是用来表达极其多的语气。如：Some of the stones weigh as much as fifteen tons.有些石头重达15吨。关系代词whom或which在定语从句中作介词宾语时,介词可放在后面,也可提前构成介词+关系代词whom (先行词指人)/which(先行词指物)引导定语从句(这种方法更为正式)。例: Mary is the girl whom I borrowed a book from. = Mary is the girl
4、 from whom I borrowed a book. 玛丽就是我向她借书的那个女孩。 Is this the room that/which he once lived in? = Is this the room in which he once lived? 这是他曾经住过的房子吗? 常见的有以下几种情况: 1. where=in/on which 例: This is the room where / in which he lives.这是他住的房间。 I can see the playground where / on which they do sports.我能看见他们进
5、行运动的操场。 2. when= on/in/at which 例: I still remember the year when/ in which I joined the Party.我仍然记得入党的那一年。 I still remember the day when/on which I joined the Party. 我仍然记得入党的那一天。 I still remember the hour when/at which the rocket was launched.我仍然记得那个火箭发射的时刻。 3. why=for which 例: This is the reason w
6、hy / for which he was killed.这是他被杀害的原因。 但下列情况下介词不能提前: 用who代替whom,用that代替which时,介词不能提前。例: Hes the boy who I learned English from.这是我向他学英语的男孩。 This should be the place that Tom sent the parcel to. 这应是汤姆送包裹的地方。 当whom、which省去时介词不能提前。例: Is he the boy you went there with?他是和你一起去那儿的男孩吗? This is the room he
7、 lived in. 这是他住过的房间。 当whom, which作为含有介词的动词短语的宾语时,介词一般来说不能拆开提前。例: Youre the very man whom Im looking for. 你正是我在找的那个人。 This is the program which he listened to. 这就是他听过的节目。 再看下面几种结构: (一)介词+whose引导的定语从句 whose引导定语从句时,可出现创新句型:介词+whose引导定语从句。解这种定语从句时需弄清从句的动词与先行词、whose后边的名词及定语从句主语之间的关系,并发挥合理想象,不难发现其中正确的逻辑关系
8、。例: She is the girl to whose father I talked yesterday. 她就是昨天我和其父亲谈话的女孩。 He is the boy for whose boss I work. 他就是我为其老板打工的男孩。 (二)复杂介词+whom/which引导定语从句 I stay at the hotel at the back of which is a small garden. 我住在后面有一座花园的旅馆。 (三)数词(不定量数词)/ 含所属关系名词+of whom/which引导定语从句。例: She has many books, only one o
9、f which is interesting. 她有许多书,只有一本是有趣的。such.that和so.that的区别和用法suchthat与sothat都可以用来引导结果状语从句，意为“如此以致”。（1）such是形容词，它所修饰的名词可以是可数名词，也可以是不可数名词；名词前面可以带形容词，也可以不带。如果其后是单数可数名词，前面需加不定冠词a或an。因此，suchthat的句型结构可分为以下三种：such+a（n）（+adj.）+单数可数名词+that从句。如：She is such a good teacher that all of us love and respect her.她
10、是一位很好的老师，我们都敬爱她。Table tennis is such an interesting game that people all over the world play it.乒乓球是一项很有趣的运动，以致全世界的人都参加这项运动。such（+adj.）+复数可数名词+that从句。如：They are such interesting books that I want to read them once more.这些书非常有趣，我想再读一遍。such（adj.）+不可数名词+that从句。如：It was such bad weather that I had to st
11、ay at home.天气太坏，以致我不得不呆在家里。（2）so是副词，与形容词或副词连用，其结构是：so+adj.（adv.）+that从句。如：He ran so fast that I couldnt catch up with him.他跑得那么快，我赶不上他。I am so sleepy that I can hardly keep my eyes open.我太瞌睡了，眼睛几乎睁不开了。注意：当名词前面有many，much，few，little等表示数量多少的限定词时，应该用so，而不能用such。如：There were so many people in the street
12、watching the fire that firefighters could not get close to the building.街上围观大火的人太多了，消防队员无法靠近大楼。当单数名词前有形容词时，既可用so，也可用such，但不定冠词的位置却有所不同。如：This is such an important meeting that you should attend it.（=This is so important a meeting that you should attend it.）这是一次很重要的会议，你一定要参加。现在分词的用法（一）作定语 1. 动词现在分词单独
13、作定语，通常放在所修饰词前。例如： The sleeping boy is Tom. 2. 现在分词短语作定语放在所修饰词的后面，意思同定语从句差不多。例如 ： Tell the children playing outside not to make too much noise. = Tell the children who are playing outside not to make too much noise. 3. 现在分词可相当于非限制性定语，常用逗号分开。例如： Tom, wearing beautiful clothes, followed me down the hil
14、l. = Tom, who is wearing beautiful clothes, followed me down the hill. 4. 有时现在分词可以和副词或名词构成复合词作定语。例如： This is an English-speaking country. （二）作表语 现在分词作表语多表示主语的特征。如amusing, discouraging, puzzling, refreshing, astonishing, exciting 等。例如： The story is moving. （三）现在分词在句中作宾语补足语，这时现在分词和前面的宾语有逻辑上的“主表”关系或“主谓
15、”关系。例如： We all found his equipment interesting. (主表关系) I saw Mary going upstairs then. (主谓关系) （四）作状语 现在分词作状语，其逻辑主语一般是句中的主语，如果不是，需在V-ing 形式前加名词或代词主格作逻辑主语。 1. 作原因状语，相当于原因状语从句。例如： Being ill, Mary didnt come to school yesterday. 2. 作时间状语，相当于时间状语从句。例如： Seeing their teacher coming, the students stopped talking. 如果现在分词表示的动作与谓语表示的动作同时发生，常在现在分词前加上when或while。例如： While waiting
