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2020高考二轮复习英语语法知识难点梳理(15)

2020-02-05 13:29:28来源：网络

　　为了帮助同学们备战2020高考英语，新东方在线高考频道整理了《2020高考二轮复习英语语法知识难点梳理(15)》，供同学们参考。

　　it 与there be的用法

　　I.要点

　　1、it的用法

　　(1)用作人称代词，代替前文提到的无生命的事物，动植物、婴儿及指示代词this, that，如，

　　I have a new pen. It is beautiful.

　　The Browns have a new baby. It's cute.

　　(2)用来表示时间、天气、距离等，如，

　　It's twelve o'clock now.

　　It's fine today.

　　(3)用作引导词，代替由不定式，ing形式或从句表示的真正的主语或宾语，如，

　　It's no good telling him that.

　　It's necessary for you to do so.

　　(4)用在强调结构中，构成强调句式：It is/was +被强调部分+that/who/whom +句子其余部分，可强调除谓语以外的句子其他成分，如，

　　It was this morning that I saw him in the street.

　　It was I who saw him in the street this morning.

　　It was in the street that I saw him this morning.

　　It was him whom I saw in the street this morning.

　　2、there be句型

　　英语表示某时某处或某物时，常用there be句型，这是一种倒装结构，如，

　　There are a lot of students playing on the ground.

　　There is going to be a test this afternoon.

　　当主语有两个或两个以上时，动词be常和最近的那个主语取得一致，如，

　　There is a pen and three pencils in the pencil-box.

　　There isn't a desk, a bench and three chairs in the room.

　　There are lots of people like it, aren't there?

　　there be句型，谓语动词除be之外，还可用其他表示存在，位置移动等意义的不及物动词或词组，如exist, stand, lie, enter, come, happen to be, appear to be等，如，

　　There stands a house at the foot of the hill.

　　there be句型表示"存在"而have表"有"、"拥有"，所以there be中be不能换成have，但当have表示事物的特征时，可用"主语+have"结构替换there be 句型，如：

　　There are five doors in the house.

　　The house has five doors.

　　there be 的其它句型：

　　1、There must be a meeting in the office.

　　2、There have been great changes since 1979.

　　3、There being no bus, we had to walk home.

　　I.例题

　　例1____ that he went to sleep.

　　A It was until midnight B That was until midnight

　　C It was not until midnight D That was not until midnight

　　解析：该题答案为C。强调until结构时，要将否定词not移到until前。又如：He didn't leave until twelve 改为It was not until twelve that he left.

　　例2There are a lot of students ____ in the class room.

　　A talk B talking C talked D to talk

　　解析：该题正确答案为B。There be句型为倒装句，可换为A lot of students are talking in the class room. 又如：There is a lot of noise heard out in the street.

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本文关键字: 2020高考英语 高考英语语法

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