You can see fishes swimming on the of the river because it is too warm.——青夏教育精英家教网—

2. You can see fishes swimming on the ________ (水面) of the river because it is too warm.

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1. As we all know, smoking is ________(有害的) to our health.

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4. “If you are right, my mass will be less than ...!” (Using Language)

　　　 mass在此意为“质量”，是不可数名词，但有时可与不定冠词连用。如：

　　　 This particle has a very small mass.

　　　这种粒子的质量很小。

　　　 mass还可用于a mass of 或masses of，通常有以下两种意思：

　　　 (1)表示“一团，一堆，一块”。如：

　　　 There were masses of white clouds in the sky.　天上有朵朵白云。

　　　 There is a mass of snow in the yard.　院子里有一堆雪。

　　　 (2)表示“大量，大批”，可修饰可数名词或不可数名词。如：

　　　 A mass of people are coming to see the exhibition.　大批人要来看展览。

　　　 I’ve masses of work to do.

　　　我有大量工作要做。

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3. Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. (Reading)

　　　句子中两个以whether引导的从句均为名词性从句, 前者是主语从句，后者是宾语从句。在引导宾语从句时通常既可以用if也可以用whether(介词的宾语除外), 但是引导主语从句、表语从句或同位语从句时通常多用whether而不用if。如：

　　　 Henry asked if / whether he could go surfing on the Internet then.

(宾语从句)

　　　亨利问他那时是否可以上网。

　　　 I worry about whether I hurt her feelings.(作介词宾语)

　　　我担心是否伤害了她。

　　　 Her question is whether humans will be able to live on Mars.(表语从句)

　　　她的问题是人类将来能否在火星上生活。

　　　 Whether Mr Black will go to the conference doesn’t matter at all.

(主语从句)

　　　布莱克先生与会与否无关紧要。

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2. ... which prevents heat from escaping from the earth into space. (Reading)

　　　 (1) prevent ... from doing ...表示“防止/阻止/制止某人(某物)做某事”，与其意思相近的词组还有keep ... from doing ...; stop ... from doing ... 。其中prevent 和stop后的from在主动语态中可以省略，但在被动语态中不能省略。keep后的from一般不可省略。如：

　　　 Laws have been passed to prevent /stop / keep people from killing wild animals.

　　　 (政府)通过了一些法律来制止人们捕杀野生动物。

　　　 Nothing will keep us from coming here.　什么也阻止不了我们来这里。

　　　 We were prevented by the heavy rain from getting there in time.

　　　大雨使我们没能及时赶到那里。

　　　 (2) escape from从……逃出。如：

　　　 The tiger has escaped from its cage.

　　　老虎从笼中逃掉了。

　　　 escape表示“逃避”，“避免”，后跟名词或动词?鄄ing形式。如：

　　　 He escaped punishment / being punished.　他逃避了惩罚。

　　　 There is no way to escape doing the work.　没办法不做那项工作。

　　　 (3) space表示“太空”时是不可数名词，其前一般不加冠词。

　　　 They traveled through space to the moon in a spaceship.

　　　他们乘坐宇宙飞船穿越太空到月球上去。

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1. Water had already disappeared from planets like Mars or satellites like the moon, but it stayed on the earth. This is how the earth began to show its special qualities. (Reading)

　　　 This is how ...表示“这就是……如何……”，其中how引导的是一个表语从句，用于说明方式。类似的结构还有：this is because ..., this is why ..., this is what ..., this is when ..., this is where ...等,分别用于说明原因、结果、事物、时间、地点等。请比较：

　　　 Mary failed in this exam. This was because she had been ill for two weeks.

(说明原因)

　　　玛丽之所以没通过这次考试，是因为她此前病了两个星期。

　　　 The fog is too heavy this morning. This is why we drive so slowly.

(说明结果)

　　　今天早晨雾太大，我们只好慢慢开车。

　　　 The young man left school in 1998.This was when he joined the army.

(说明时间)

　　　 1998年那个年轻人离开了学校，也就在那一年他参了军。

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第二节：书面表达 (25分)