本章主要内容
1.四种“倍数”表达方法；
2.as...as句型结构；
3.主谓一致：and链接两个名词做主语时；
4.宾语从句；
中考英语综合练习题：
67.After the new technique was introduced，the factory produced ___ tractors in 2020 as the year before.
as twice manyB. as many twice
C. twice as many D. twice many as
点击链接，观看同步视频：中考英语总复习：英语中倍数如何表达？as...as句型用法讲解
试题分析： 本题考查倍数表达方法
倍数表达： 倍数+ as + 形容词原形+ as +比较对象
正确答案：C
试题含义：新技术引进后，工厂在2020年生产的拖拉机数量是前一年的两倍。
知识总结：倍数表达方法
1.倍数词/百分比/分数 + as + 形容词/副词 + as : 是…的…倍
The school is three times as big as theirs.
这个学校是他们学校的三倍。
The dinner room is twice as big as the kitchen.
餐厅是厨房的两倍大。
The room is one-third as big as that one.
这个房间是那个房间的三分之一大。
注意：
（1）倍数表达方法：一半half, 一倍once,两倍twice, 三倍及以上”数词 + 倍数”，three times，four times…
（2）分数表达法：基数词 + 序数词，当基数词大于与1时，序数词要使用复数；
2.Half + as + 形容词 + as : 是….的一半
Her room is half as big as yours.
她的房间时你房间的一半大。
His ability is not half as high as yours.
他的能力不及你的一半。
3.倍数词/百分比/分数 + 形容词/副词比较级 + than
Dog`s sense of smell is up to 10,000 times greater than human beings.
狗的嗅觉是人类的1万倍。
4.倍数词/百分比/分数 + the size/length/width/height/weight等表示单位的名词 + of …:
The big box is five times the weight of the small one.
这个大盒子的重量是小盒子的五倍。
68. Jack does his homework ___ Mary. So they both always get good grades in the exams.
A.so carefully as; B.as carefully as;
C.carefully as; D. as careful as
点击链接，观看同步视频：初中英语语法，如何用表达像……一样？as……as,so……as用法讲解
试题解析：本题考查句型---as..as结构：
1.as…as: 像…一样， as + 形容词原级/副词原级 + as;(肯定句)
2.so… as: 像…一样，so + 形容词原级/副词原级 + as;(否定句)
3.careful：仔细的（形容词），carefully，仔细地（副词），修饰实义动词does需要使用副词，
正确答案：B
试题翻译：杰克和玛丽一样认真地做家庭作业。所以他们在考试中总是取得好成绩。
