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本帖最后由 番茄斗斗 于 2009-11-26 18:52 编辑
第十一讲动词、动词语态
动词
======================
3)be + 动词不定式,可表示下列内容:
b. 表示命令,例如:
You are to explain this.对此你要做出解释。
He is to come to the office this afternoon.要他今天下午来办公室。
c.征求意见,例如:
How am I to answer him?我该怎样答复他?
Who is to go there?谁该去那儿呢?
d. 表示相约、商定,例如:
We are to meet at the school gate at seventomorrow morning.我们明天早晨7点在校门口集合。
6 助动词shall和will的用法
在过去的语法中,语法学家说shall用于第一人称,will 只用于第二、第三人称。现在,尤其是在口语中,will常用于第一人称,但shall只用于第一人称,如用于第二、第三人称,就失去助动词的意义,已变为情态动词,试比较:
He shall come.他必须来。(shall有命令的意味。)
He will come.他要来。(will只与动词原形构成一般将来时。)
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动词的语态
==========================
1let 的用法
1)当let后只有一个单音节动词,变被动语态时,可用不带to 的不定式。
They let the strange go.---> The strangewas let go.
2) 若let 后宾补较长时,let 通常不用被动语态,而用allow或permit 代替。
The nurse let me go to see my classmate inthe hospital.
----> I was allowed / permitted to seemy classmate in the hospital.
4 不用被动语态的情况
1) 不及物动词或动词短语无被动语态:
appear, die disappear, end (vi. 结束), fail,happen, last, lie, remain, sit, spread, stand
break out, come true, fall asleep, keepsilence, lose heart, take place.
After the fire, very little remained of myhouse.
比较: rise, fall, happen是不及物动词;raise, seat是及物动词。
要想正确地使用被动语态,就须注意哪些动词是及物的,哪些是不及物的。
2) 不能用于被动语态的及物动词或动词短语:
fit, have, hold, marry, own, wish, cost,notice, watch agree with, arrive at / in, shake hands with, succeed in, sufferfrom, happen to, take part in, walk into, belong to
This key just fits the lock.
Your story agrees with what had alreadybeen heard.
3) 系动词无被动语态:
appear, be become, fall, feel, get, grow,keep, look, remain, seem, smell, sound, stay, taste, turn
It sounds good.
4) 带同源宾语的及物动词,反身代词,相互代词,不能用于被动语态:
die, death, dream, live, life
She dreamed a bad dream last night.
5 主动形式表示被动意义
1)wash, clean, cook, iron, look, cut, sell,read, wear, feel, draw, write, sell, drive…
2)blame, let(出租), remain, keep,rent, build
I was to blame for the accident.
Much work remains.
3) 在need, require, want,worth (形容词), deserve后的动名词必须用主动形式。
The door needs repairing.= The door needsto be repaired.
This room needs cleaning. 这房间应该打扫一下。
This book is worth reading.这本书值得一读。
4) 特殊结构:make sb. heard /understood (使别人能听见/理解自己),have sth. done ( 要某人做某事)。
6 被动形式表示主动意义
be determined, be pleased, be graduated(from), be finished, be prepared (for), be occupied (in), get marries
7 need/want/require/worth
注意:当 need, want, require, worth(形容词)后面接doing也可以表示被动。
Your hair wants cutting.你的头发该理了。
The floor requires washing. 地板需要冲洗。
The book is worth reading.这本书值得一读。
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第十二讲
动词不定式、分词、动名词
==========================
动词不定式
==========================
4)there be+不定式
believe, expect, intend, like, love, mean,prefer, want, wish, undrstand
We didn't expect thereto be so many people there.我们没料到会有那么多人在哪里。
注意: 有些动词需用as 短语做补语,如regard,think believe, take, consider.
We regard Tom as our best teacher.我们认为汤姆是我们最好的老师。
Mary took him as her father .玛丽把他当作自己的父亲。
3) 当不定式作主语的句子中又有一个不定式作表语时,不能用It is… to…的句型
(对)To see is tobelieve.百闻不如一见。
(错)It is to believe tosee.
4 It's for sb.和 It's of sb.
for 与of 的辨别方法:
用介词后面的代词作主语,用介词前边的形容词作表语,造个句子。如果道理上通顺用of,不通则用for。如:
You are nice.(通顺,所以应用of)。
He is hard.(人是困难的,不通,因此应用for。)
10 动词不定式的否定式
Tell him not toshut the window…
She pretended notto see me when I passed by. 我走过的时候,她假装没看见。
warn sb to do sth. 的否定形式为warn sb not to do sth.
not to 为not to do it 的省略形式。
11 不定式的特殊句型too…to…
如在too前有否定词,则整个句子用否定词表达肯定
3)当too 前面有only, all, but时,意思是:非常…等于very。
He was but too eager to get home. 他非常想回家。
12 不定式的特殊句型so as to
2)so kind as to ---劳驾
Would you be so kind as to tell me thetime?
劳驾,现在几点了。
15 动名词与不定式
1) 动名词与不定式的区别:
动名词表达的是:状态,性质,心境,抽象,经常性,已发生的
不定式表达的是:目的,结果,原因,具体,一次性,将发生的
==========================
分词
=========================
2)先于主动词
While walking in the garden,he hurt hisleg. 在花园里散步时他伤了腿。
分词作时间状语,如果先与主动词的动作,且强调先后,
要用having done。
Having finished his homework, he went out.
=As he had finished his homework, he wentout.
==========================
动名词
=========================
2 worth 的用法
worth,worthy,worth-while都为adj. 意为"值得"。
1. worth: be worth + n.
当名词为金钱时,表示"……值得……"
be worth doing sth."……某事值得被做"
The question is not worth discussing againand again.
2. worthy: be worthy of +n. 当名词为抽象名词时表示"……值得……"
be worthy to be done "某事值得被做"
The question is not worthy to be discussedagain and again.
3. worth-while: beworth-while to do sth
"值得做某事"
worth while: It is worth whiledoing sth
It is worth while sb to do sth.
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第十三讲 独立主格、特殊词
独立主格
==========================
1 独立主格
(一):独立主格结构的构成:
名词(代词)+现在分词、过去分词;
名词(代词)+形容词;
名词(代词)+副词;
名词(代词)+不定式;
名词(代词) +介词短语构成。
(二)独立主格结构的特点:
名词或代词与后面的分词,形容词,副词,不定
式,介词等是主谓关系。
The test finished, we began our holiday.
= When the test was finished, we began ourholiday.
考试结束了,我们开始放假。
Weather permitting, we are going to visityou tomorrow.
如果天气允许,我们明天去看你。
This done, we went home.
工作完成后,我们才回家。
1) 独立主格结构使用介词的问题:
当介词是in 时,其前后的两个名词均不加任何成分(如物主代词或冠词),也不用复数。但 with 的复合结构不受此限制
2) 当表人体部位的词做逻辑主语时,及物动词用现在分 词,不及物动词用过去分词。
He lay there, his teeth set, his handclenched, his eyes looking straight up.
==========================
特殊词
==========================
2 forget doing/to do
forget to do忘记要去做某事。(未做)
forget doing忘记做过某事。(已做)
5 cease doing/to do
cease to do 长时间,甚至永远停做某事。
cease doing 短时停止做某事,以后还会接着做。
That department has ceased to existforever.
那个部门已不复存在。
The girls ceased chatting for a moment whentheir teacher passed by.
姑娘们在老师走过时,停了会聊天。
6 try doing/to do
try to do努力,企图做某事。
try doing 试验,试着做某事。
8 be afraid doing/to do
be afraid to do不敢,胆怯去做某事,是主观上的原因不去做,意为"怕";
be afraid of doing担心出现doing的状况、结果。 doing 是客观上造成的,意为"生怕,恐怕"。
She was afraid to wake her husband.
她不敢去叫醒她丈夫。
She was afraid of waking her husband.
她生怕吵醒她丈夫。
12 感官动词 + doing/to do
感官动词 see, watch, observe, notice, look at, hear, listen to, smell,taste, feel + do 表示动作的完整性,真实性; +doing 表示动作的连续性,进行性
I saw him work in the garden yesterday.
昨天我看见他在花园里干活了。(强调"我看见了"这个事实)
I saw him working in the garden yesterday.(强调"我见他正干活"这个动作)
昨天我见他正在花园里干活。
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