高考英语it重点用法归纳

1、1.替代词one, ones, that, those, it,this, that1)one, ones, that, thoseThat替换单数可数名词或不可数名词；one只替换单数的可数名词。Eg: The vase on the left is more beautiful than _ on the right.The coffee produced in Brazil is more famous than _in Mexico.the onethatThat只用于替换表示事物的名词， 而one/ones替换表示人和表示事物的名词皆可。Eg: His younger sister

2、is taller than the elder _.I need the plastic bags, not the paper_ .oneonesThat/ those一般不带前置定语，但必须有后置定语。One/ones都可。当替换词的后置定语用所有格的of短语或当替换词被所有格修饰时，不用one/ones而用that of/those of.Eg: I like the vase better than _in another shop.The windows of your flat are cleaner than _of mine. A grandparents job is ea

3、sier than _of a parent.The computers in our school are connected to the Internet while _ in their school arent.the one / thatthosethatthoseThat/ those用于替换有定冠词的名词；one/ones用于替换有不定冠词的名词。Eg: The style of the building is similar to _of a temple.A CD player made in Japan costs more than _made in China.tha

4、toneEg: I bought a dictionary three years ago and I am still using_ now.I bought a dictionary three years ago but I am going to buy a new _soon.It用以指特定的前面提到过的事物，即：it和它替换的是同一个事物，it前无修饰语；而one用于替换与前提事物有共同之处但并不完全一样的事物，因此，one之前或之后一定有修饰语来加以区别。2. It和one itone It引起的几个易混淆的时间句型 It + be + 时间 + since-clause这个句型

5、表示从since 从句谓语动作发生以后到现在或过去所经过的一段时间，意为“自从.以来已多久了” It is three years since his father passed away . It + be + 时间 + before-clause 这个句型中的时间一般为表示一段时间的词语 (如：a long time , months , weeks , days ,hours , minutes ) ，主句中的谓语动词用肯定式，意为“过多长时间才.”。主句的谓语动词是否定式时，意为“没过多长时间就.”。主句的时态可用过去时was或将来时will be；用was 时，before从句的动词

6、用一般过去时；用will be 时，before从句常用一般现在时。 她没过多久就背会了那些诗歌。 It was _she learned those poems by heart . 过了很久警察才来。It was _the police arrived . 要过好几个小时他才会作出决定。 It _hours before he makes a decision . 要不了几个小时我们还会再见面的。 _before meet again . not long beforelong beforewill beIt will not be hours3. It + be + 时间 + when-

7、clause 这个句型中, it 指时间，而且表示时间的词语前没有介词(时间一般为具体时间)。主句中的谓语动词和从句中的谓语动词在时态上一般是一致的，主句是will be，when从句用一般现在时代替将来时。It was already 8 oclock when we got home .It was the next morning when we finished our work .It will be midnight when they get there . It + be + 时间 + that-clause这个句型是个强调句型。例如：It was two years ago

8、that he made animportant invention .(原句是：_)It was at 5 oclock that he practised playing the violin in the morning .(原句是：_)比较：It was 5 oclock when he started in the morning .(5 oclock前没有介词，这是个定语从句) He made an important invention two years ago . He practised playing the violin at 5 oclock in the morni

9、ng . It + be + time + that-clause这个句型属虚拟语气结构，不管主句中用的是 is 或 was ，that从句都须用动词的过去式或should + 动词原型(但不及用过去式普通)，在time之前有时可加上high或about 以加强语气。例如： It is time(that)we handed in our exercises .(= It is time that we should hand in ourexercises .)It is high time (that ) she wrote a letter to her boyfriend . It /

10、 This / That + the first(second , third ) time + that-clause这个句型表示截止到说话时为止的某人的一种经历，关键是注意time前有序数词，主句是 is 时 ，从句要用现在完成时；如果主句用一般过去时was ，则从句须相应地用过去完成时。例如：This is the first time (that) these Europeans _the Great Wall .It was the fifth time (that) I _a friendly visit to Africa . had paidhave visited 结构：It

11、+动词be+强调部分+who(whom)/that+其他部分it可以用来对句子的某一成分加以强调。It 用于强调句 Eg: Nancy saw your sister in Tokyo last week. It was Nancy who saw your sister in Tokyo last week. It was your sister whom Nancy saw in Tokyo last week. It was in Tokyo that Nancy saw your sister last week. It was last week that Nancy saw you

12、r sister in Tokyo.有些否定句也可以改成这种强调结构：It wasnt until last summer that I heard from her. I didnt do all this for myself. It wasnt for myself that I did all this.问句也可变成这种结构：Who called him “comrade”?Who was it that called him “comrade”?How did you forget to lock the door?How was it that you forgot to lock

13、 the door?Ex:把下列句子改为强调句：1.Tom broke the window last night.2. They want money.3. Peter saw his friend in the park yesterday.4. I didnt have an opportunity of seeing her again for several years. 5. Why does everyone think Im narrow-minded?6. I didnt receive my letter until yesterday?7. Did Dick call t

14、he meeting last week?8. Did it happen in 1980?Toms mother kept telling him that he should work harder , but _ didnt help . A. he B. which C. she D. it As _ happens , I have brought my umbrella with me . A. it B. this C. that D. such 3. _has already been pointed out , grammar is not a set of dead rul

15、es . A. As B. It C. That D. This4. It was seven forty-five _he finished the work . A. when B. that C. when D. beforeDAAA5. Was it because it snowed last night _ he didnt come ? A. why B. that C. when D. which 6. Does _ matter if he cant finish the job on time ? A. this B. that C. he D. it 7. Europea

16、n football is played in 80 countries , making _ the most popular sport in the world . which B. this C. that D. it 8._ is no doubt that he will succeed in his experiment . A. It B. This C. That D. ThereBDDD9. It worried a bit _ her hair was turning gray . A. while B. that C. if D. for 10. It was not

17、_ she took off her dark glasses I realized she was a famous film star . A. when ; that B. until ; that C. until ; when D. when ; then BB； / b2b平台 jor937fhl 心”。九尾的眼睛闪过一丝阴霾，一瞬间又被担忧所取代，红色的瞳转瞬间被棕色取代。九尾和妈妈一同消失在夜空中。我看到了那个叫做暮笙的男人，这整个时间似乎都与他有关。应龙说：“你以为他们逃得掉吗”。暮笙的眼睛变成了绿色，周围狂风大作，尘土飞扬，空气涌动，周围的气流变成了有形的气体，在古宅周围汇

18、集成一面流动的旋涡。暮笙飞身进入旋涡之中，应龙紧跟其后。他们来到了另一个地方，一望无际的草原。视野开阔。暮笙手腕上的那个黑色的刺青，这个刺青像一条龙，仔细看是蒲牢，蒲牢传说中龙生九子中的四子，形状像龙，但比龙小，生活在海边。在暮笙的手上呈环形形成一个手镯。此时它变成了一把黑色的剑。剑气凌厉，亮不刺目，散发着淡淡青光。手握黑剑，脚踏七星，顿时天雷地火附于剑上。天地间一片萧杀，雷声滚滚。剑直接刺向应龙的天灵盖之处。应龙也毫不示弱，它身上的每一个鳞片都锋利的如刀片一般，在应龙的前面空气凝结成了无数细长的如水晶一般的针刺向暮笙，暮笙的那把黑剑悬浮在暮笙的前面并形成了一面屏障。此时四周的空气似乎都是抖动的，暮笙大喝一声：“拔”。只见地面平地拔起了无数的巨石