2022年高中英语13个必背的语法考点，高中英语语法都有哪些！(2)

周末期间的降雨量达二又四分之一英寸。 此文来自qqaiqin.com

2. 小数:小数总是用阿拉伯数字表达。小数点后不论有多少位都不能用逗号分开,但小数点之前的数依然按照三位一个逗号的原则书写。 Q游网qqaiqin

0.786432 120,372.428 此文来自qqaiqin.com

注意:小数点前的数按普通基数词的读法读,小数点后的数每一位都要单独读。

15.503 读作fifteen point five zero three Q游网qqaiqin

0.05 读作zero point zero five Q游网qqaiqin

3. 百分数:百分数中的数目用阿拉伯数字,后接percent或百分号(%),在专业统计或表格中常用%代替percent,在句首时则用英语单词书写。 Q游网qqaiqin

I have invested 40 percent of my income. 此文来自qqaiqin.com

我把40%的收入用作投资了。 Q游网qqaiqin

Farmers’ income has increased by 30%.

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农民的收入已经增加了30%。 Q游网qqaiqin

4、 倍数:表示倍数时,一倍用once,两倍 用twice/double,三倍以上用“基数词+ times”。 此文来自qqaiqin.com

1)“倍数 + as many/much … as …” Q游网qqaiqin

My deskmate claims to have twice as many stamps as I. 此文来自qqaiqin.com

我同桌声称他的邮票是我的两倍。 Q游网qqaiqin

This computer costs three times as much as that one. 此文来自qqaiqin.com

这台计算机的价格是那台的三倍。 此文来自qqaiqin.com

2)“倍数 + the size of …” Q游网qqaiqin

用法与size相同的名词常见的有weight(重量),height(高度),depth(深度),width(宽度),age(年龄),length(长度)等。

Our playground is five times the size of theirs.

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我们的操场是他们的五倍大。 此文来自qqaiqin.com

This street is twice/double the width of that one.

这条大街是那条大街的两倍宽。

3)“倍数 + what从句”

The value of the house is double what it was.

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这所房子的价值是原来的两倍。 Q游网qqaiqin

People’s average income is almost five times what they earned ten years ago.

人们的平均收入是十年前的五倍。 Q游网qqaiqin

4)“倍数 + 比较级 + than”

The room is twice larger than ours. Q游网qqaiqin

这间房子比我们的房子大两倍。 此文来自qqaiqin.com

This ball seats three times more people than that one. 此文来自qqaiqin.com

这个大厅能坐的人数是那个大厅的四倍。 Q游网qqaiqin

5)“比较级 + than … + by + 倍数/程度” 此文来自qqaiqin.com

The line is longer than that one by twice.

这根线是那根线的两倍长。

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The population of China is larger than that of the US by over 6 times. Q游网qqaiqin

中国人口是美国人口的六倍多。

5、四则运算: 此文来自qqaiqin.com

1)加法:在口语中,小数目的加法常用and代表“+”,is 或 are 代表“=”。 Q游网qqaiqin

在正式的场合或较大数目的加法用plus代表“+”,equals或is 代表“=”。 Q游网qqaiqin

7+4=11 Seven and four is/are eleven. Q游网qqaiqin

13+12=25 Thirteen plus twelve equals/is twenty-five.

2) 减法:在口语中,小数目的减法用“Take away + 减数 + from + 被减数 + and you get + 余数” 此文来自qqaiqin.com

“减数 + from + 被减数 + leaves/is + 余数” 此文来自qqaiqin.com

在正式的场合或较大数目的减法用minus 代表“—”,equals 代表“=”。 Q游网qqaiqin

12-5=7 Five from twelve leaves/is seven. /Take away five from twelve and you get seven. Q游网qqaiqin

21-7=14 Twenty-one minus seven equals fourteen. Q游网qqaiqin

3) 乘法:在口语中,小数目的乘法的乘数用复数形式,用are 代表“=”。 此文来自qqaiqin.com

大数目的乘法用times代表“×”,is/makes 代表“=”。 此文来自qqaiqin.com

在正式的场合下用multiplied by 代表“×”,equals 代表“=”。 Q游网qqaiqin

4×5=20 Four fives are twenty

326×238=77588

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Three hundred and twenty-six times two hundred and thirty-eight is/makes seventy-seven thousand five hundred and eighty-eight. 此文来自qqaiqin.com

Three hundred and twenty-six multiplied by two hundred and thirty-eight equals seventy-seven thousand five hundred and eighty-eight.

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4) 除法:小数目的除法:用divided by 代表“÷”,equals 代表“=”。 此文来自qqaiqin.com

“被除数 + divided by + 除数 + equals + 商”;“除数 + into + 被除数 + goes + 商” Q游网qqaiqin

32÷4=8 Thirty-two divided by four equals eight.

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Four into thirty-two goes eight.

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大数目的除法:用divided by 代表“÷”,equals 代表“=”。 Q游网qqaiqin

216÷8=27

Two hundred and sixteen divided by eight equals twenty-seven. 此文来自qqaiqin.com

6、比率:一般来说表示比率都用阿拉伯数字(包括句首的情况),但在非专业性的文字中,也可用英语单词的形式。 Q游网qqaiqin

The ratio of 7 to 4 is written 7:4 or 7/4.

七比四写作7:4或7/4。 此文来自qqaiqin.com

You have a fifty to fifty chance of success.

你成功的机会只有一半。

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7、编号:用基数词时 名词 + 基数词 World War Ⅰ/Page 8/Room 109…

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用序数词时 the + 序数词 + 名词 the First World War 此文来自qqaiqin.com

8、年代与几十几岁:通常是逢十的基数词用作复数形式。表示年代的数词前用定冠词 in the 90s;表示岁数的数词前用形容词用物主代词 in one’s twenties

9、约数:

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1)表示“大约”可以用about/some/around/nearly/something like/more or less,用or so 表示“左右、大约”置于数词之后。

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The man in rags is about/some sixty years old. Q游网qqaiqin

The man in rags is sixty years old or so.

那个衣衫褴褛的男子大约有六十岁/六十岁左右。

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Peter is something like thirty.

皮特大约有三十岁。 Q游网qqaiqin

2)“多于、超过”用more/than/over/above;“少于、不超过”用less than。

She was more than/less than forty when she got married. 此文来自qqaiqin.com

她结婚时有四十多岁/不到四十岁。

3)其他

半天(小时)half a day=a half day; half an hour=a half hour

一个半 a day and a half=one and a half days

两天半 two days and a half=two and a half days Q游网qqaiqin

一两天……one or two days=a day or two Q游网qqaiqin

两三天/周/个苹果 a couple of days/weeks/apples… Q游网qqaiqin

三番五次 again and again; repeatedly; time and (time) again; over and over again; time after time 此文来自qqaiqin.com

三年五载 from three to five years; in a few years

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三三两两 in twos and threes; in knots 此文来自qqaiqin.com

2022年高中语法有必背的知识点 Q游网qqaiqin

1、as 句型

(1) as引导方式状语从句句型:“按照……;正如……” 此文来自qqaiqin.com

例:As(it is)in your country, we grow wheat in the north and rice in the south.

正如(像) 你们国家一样,我们北方种植小麦,南方种植水稻。 Q游网qqaiqin

(2) as+形容词/副词原级+(a /an)+名词+as ;

否定式:not as/so --- as

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例:He is as good a player as his sister.

他和他姐姐一样是位优秀的运动员。 此文来自qqaiqin.com

(3) such + n. + as to do 如此……以致于…… 此文来自qqaiqin.com

例:She is such a fool as to believe what he said.

她是一个如此的一个笨蛋以致相信了他所说的话。 Q游网qqaiqin

(4) so + adj./adv. + as to do sth 如此……以致于……

例:He was so strong as to carry the heavy box.