句型转换。1. They have never been to an English-speaking country. (变为一般疑问句) theybeen to an English-speaking country?2. She has been a flight attendant-八年级英语
该时态只能与表示不定的过去时间状语(如:already,yet,before,recently等)、频度时间状语(如:never,ever,once等)、包括现在时刻在内的时间状语(如:this morning / month /year...,today等)连用。
例如:Have you found your pen yet?你已找到你的钢笔了吗?
7.现在完成时的"未完成用法"
现在完成时的"未完成用法"指的是动作开始于过去某一时刻,一直延续到现在,或可能还要继续下去。
例如:
He has lived here since 1978.自从1978年以来,他一直住在这儿。
(动作起始于1978年,一直住到现在,可能还要继续住下去。)
I have been in the army for more than 5 years.我在部队已经呆了五年多了。
(动作开始于5年前,一直延续至今,有可能还要继续下去。)
此种用法的句中常需一个表示一段时间的状语(由since或for引导),或表示与现在时刻相连的时间状语(如:up to now,so far)等。
例如:
I have heard nothing from him up to now.到目前为止我没有他的任何消息。
注意:现在完成时的未完成用法只适用于延续性动词,不可用于终止性动词,即瞬间完成或延续时间很短的动词。
如:come,go,arrive,leave,join,become,die等。
8.一段时间+has passed+since从句
主语+have / has been+since短语
例如:He has been in the League for three years.
或It is three years since he joined the League. 他入团已三年了
9. 现在完成时常和短语 "up to now /till now","so far" (意思是从过去某一确定的时间一直延续到现在)连用。
Up to/till now he's read many story books. 至今他已读过好多故事书。
I've been to New York three times so far. 至今我已到纽约去过三次。
has gone (to),has been (to),has been (in) 的区别
has gone to:去了没回
has been to :去过
has been in:呆了很久
考点名称:形容词的比较级,形容词的最高级
- 形容词的比较级:
当两种物体之间相互比较时,我们要用形容词或副词的比较级;
当相互比较的物体是三个或三个以上时,我们就要用形容词或副词的最高级。 形容词的比较级和最高级的特殊变化规则:
一、少数单音节词前面加 more-, most- 构成比较级和最高级
tired ---- more tired , most tired
fond ----- more fond , most fond
glad ----- more glad , most glad
bored ---- more bored , most bored
pleased---- more pleased , most pleased二、不规则变化
good /well------- better ,best
bad/badly/ill------ worse , worst
many/much-------more , most
little ------ less , least
far ---- farther, farthes / firther , furthest
old ---- older , oldest (GA)
---- older , oldest / elder , eldest (GB)三、下列形容词和副词的比较级和最高级有两种形式
cruel----- crueler, cruelest /more cruel , most cruel
strict---- stricter , strictest /more strict , most strict
often----- oftener , oftenest / more often , most often
friendly------ friendlier , friendliest / more friendly , most friendly
clever----- cleverer, cleverest / more clever , most clever四、下列形容词和副词没有比较级和最高(即表示”最高程度”或”绝对状态”的形容词和副词没有比较级和最高级)
empty , wrong , perfect , unique , extreme , excellent , favourite (GB)/ favorite (GA) , true , right , correct , extremely ...- 形容词的比较级和最高级用法:
形容词比较等级用法:
1.没有比较对象时,用原级。
I have a new computer.
2.两者比较,程度相同。
A+系动词+as+adj.+as+B.
Our school is as beautiful as theirs.
3.两者比较,程度不同。
A+系动词+not as+adj.+as+B.
The weather here is not as hot as that in the south.
4.A比B更…
The earth is bigger than the moon.
5.比较级前可以用much,even,still,far,a lot,a little,a bit,any等修饰。
Your room is much bigger than mine.
I’m a little shorter than her.
6.用比较级可以表示最高级含义:
John is stronger than any other boy in his class.=John is stronger than any of the other boys.
两者不属于同一范畴,不能用other.
Chongqing is bigger than any city in Sichuang.
7.“比较级+and+比较级” 表示“越来越…”
China is becoming more and more beautiful.
Days are getting longer and longer.
8.用the+比较级,the+比较级 表示”越…就越…”.
The busier he is, the happier he feels.
9. Which/Who+is+比较级 A或B?
A和B哪一个/谁更…?
Which is better,this one or that one?
最高级用法:
表示三者或三者以上的人或物的比较,一个在某方面超过其他两个或多个时,用最高级,结构是
主语+系动词+the+形容词最高级+of/in短语。
This story is the most interesting of the three.
1. one of the+形容词最高级+名词复数
它的意思是最…之一。
English is one of the most important languages in the world.
2. which/who…+is+形容词最高级
“…最...”
Which is the heaviest,the horse,the sheep or the elephant?
3.最高级前可以用序数词
The Yellow River is the second longest river in China. - 形容词的比较级和最高级的变化规则:
构成
原级
比较级
最高级
一般加er,est
tall
taller
tallest
以字母e结尾只
加 r,stlarge
larger
largest
以一个辅音字母结尾的
重读闭音节,双写这一辅
音字母后再加er,estred
redder
reddest
hot
hotter
hottest
thin
thinner
thinnest
以辅音字母+y结尾的词,
将y变为i再加er,esteasy
easier
easiest
happy
happier
happiest
ugly
uglier
ugliest
early
earlier
earliest
其他双音节词和多
音节词,在词前
加more或mostinteresting
more interesting
most interesting
考点名称:从属连词
- 从属连词:
这种连词是用以引导名词性从句定语从句和状语从句的,由从属连词所引导的句子叫从句,而含有从句的句子叫作复合句。 从属连词可分为三大类:
1、that (无词义,不做成分)
if,whether (表达是否的意义,但不做句子成分)
2、连接代词:who,whom,whose,what,which,whatever, whoever, whichever(有词义,在句子中可作主语、表语、宾语)
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