1. as soon as引导的状语从句 as soon as引导时间状语从句，意为“一……就……”，表示从句的动作一发生，主句的动作马上就发生。从句位于主句前后均可；若主句用一般将来时，从句用一般现在时代替一般将来时。As soon as she entered the room, she knew there was something wrong. I’ll come over to your place as soon as I finish my work.
注意：引导时间状语从句的其他常用连词有when, while, as, before, after, since, until等。
2. unless 引导的状语从句 unless引导条件状语从句，意为“除非……，如果不……”。在条件状语从句中，用一般现在时代替一般将来时。
Unless some extra money is found, the theatre will close. I can’t leave her unless I know she’s right.
3. so…that…引导的状语从句 so…that…引导结果状语从句，意为“如此……以至于……”，主要有如下用法：so +adj/adv; adj+a/an+可数名词单数；many/few+可数名词复数；much/little+不可数名词+that从句 He studies so hard that he does well in every subject. Kathy is so lovely a girl that we all like to be with her. He made so many mistakes that he failed the exam once again. There was so much smoke that they couldn’t see across the hallway. 注意：such…that…也引导结果状语从句，such后跟的是名词或名词短语。
Unit 7 What’s the highest mountain in the world?
形容词和副词的比较等级复习 一、形容词和副词的原级就是原形.
1. very / so / too / quite +原级（副词修饰形容词，副词） She is very beautiful. He works quite hard. 2. A+be +as +原级 +as+ B. 3. A+be not+as/so+原级 +as+B.
Lucy is _______________ Lily. lucy和lily一样高。 Tom isn’t _______________Jim. Lucy没有lily高。 二、形容词和副词的比较级
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（一）主要用于两者比较。表示较……或更……一些的意思。 常用far, even，much，a lot, a bit, a little等修饰。 （三）形容词和副词的比较级的用法：
1. 主语+谓语动词+adj./adv. +比较级+ than+ 对比成分
即：A +（be;实义动词）+比较级+than +B 2. 比较级+and+比较级 或 more and more+原级 3. the +比较级，the+比较级
4. 比较级+than any (other)+单数名词
表示同一事物在某一范围内进行比较 5. the + 比较级+ of the two…是两者中更…的一 6. Which / Who is + 比较级， A or B ?
比较A、B两事物, 问其中“哪一个较……” 1. His computer is cheaper than I. （×） 2. Mary is very younger than her brother. （×） 3. Shanghai is bigger than any city in China. （×） 4. Tom is taller of the two brothers. （×） 易错点一：同类事物才能比较
易错点二：错用修饰语。修饰比较级只能用much / even / far / a little.不能用very / so / too / quite来修饰。
易错点三： 同一事物不能比较。同一事物在某一范围内进行比较，常用结构比较级+than any (other)+单数名词
易错点四： 表示“…是两者中更…的一个”时, 用 “the + 比较级+ of the two”结构。the 不可缺。 使用形容词比较级时需注意以下几点：
1) than后面接代词时, 一般要用主格形式， 但在口语中也可使用宾格形式。 如：My brother is taller than I / me.
2) 当需要表示一方超过另一方的程度时，可以用much, a lot, a little, a bit, even, still等来修饰形容词比较级。注意: 比较级不能用very, so, too, quite
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等修饰。如：He is much more serious than Sam.
3) 上下文明确的情况下,形容词比较级可单独，使用不用连词than 。如： My sister is tall, but my aunt is taller.
4). “比较级＋and＋比较级”意为“越来越……” 。多音节比较级用“more and more＋形容词原级”如：It’s getting worse and worse. The group became more and more popular.
5). “Which / Who is + 比较级， A or B？”比较A、B两事物, 问其中哪一个较……时用此句型。如：
Which T-shirt is nicer, this one or that one? Who is more active, Mary or Kate?
Which one is more popular among students, going to concerts or going to movies?
三、形容词和副词的最高级
一）主要用于三者或三者以上进 行比较表示：某人或某物在某范围内最……的意思。 二）结构：
1. 主语+be/行为动词+the 最高级+in(of/among)… 1) in表示环境范围，of /among 表示对象范围 2) 形容词最高级前有物主代词时，不加the 3) 副词最高级前the也可以省掉。
① He is the tallest in his class.
② He is the tallest of (all) the /the three boys
③ He studies the hardest among them /of all the students. 2. Which / Who is + the 最高级，A, B or C…？ 比较A、B、C三事物, 问其中哪一个最…… 1) Who is the tallest, Lucy，Mary or Kate?
2) Which one is the most popular among students, going to concerts ， going to movies or playing computer games?
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3. one of +the +最高级+名词复数 4. the +序数词+最高级+名词
5. “比较级+than any other+单数名词”结构表示最高级概念 6. 最高级前的修饰语也可以是first, second, third……
Huanghe is the second longest river in China.
注意以下表达式的含义：the same…as(和……一样)， had better(最好)，less than(不到)，more or less(或多或少)，rather than(而不是)，the more…the more/less(越……就越……) sooner or later(迟早)
最后：一定要判断来用形容词的比较等级，还是副词的比较等级。副词主要用来修饰行为动词的，经常跟在行为动词之后修饰。而形容词主要在系动词之后，名词之前修饰。（难点）
Tom does his homework more carefully than Lily. Tom is more careful than Lily. 重点短语
1. the highest mountain in the world (Qomolangma) 世界上最高的山 2. the biggest desert in the world (the Sahara) 世界上最大的沙漠 3. the longest river in the world (the Nile) 世界上最长的河
4. the deepest of all the salt lakes (the Caspian Sea) 所有咸水湖中最深的 5. the biggest population in the world 世界上最大的人口数量 6. be higher than any other mountain 比其他任何山更高 7. the biggest country in Asia 亚洲最大的国家 8. the second longest river in the world 世界第二长河
9. one of the oldest countries in the world 世界上最古老的国家之一 10. one of the world’s most dangerous sports 最危险的运动之一 11.. one of the most popular places 12. the same size as… 13. mountain climbing
最受欢迎的地方之一
one of +the/my…+形容词的最高级+名词的复数形式(高频考点)
和…一样大
爬山
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