③ 在状语从句中用一般现在时或一般过去时表示将来。它们可能是主句用一般将来时，从句用一般现在时，如： If it rains, they won't go to the park on Sunday 也可以主句是一般过去时，从句用一般过去进行时，如： He said if it rained the next day he would not go to the park 考试中常见的考点有：要学生区别是条件、时间状语从句还是宾语从句，因在宾语从句中该用什么时态用什么时态，如： I want to know if he will come here tomorrow 在宾语从句中的条件状语从句与主句的关系，如： I want to know if it rains he will come here tomorrow
在原因状语从句中主要是
① because， 应译为"因为"。它表达的因果关系最强，如： He didn't pass the exam because he didn't study hard
② since 应译为"既然"，如： Since you were ill yesterday I left some notes on your desk
③ as 应译为"由于"，如： As it is too hot we'd better go swimming since 与 as 所表达的因果关系远比 because 弱得多。而 for 表达的因果关系最弱。它不能用于句首，如： He studies hard, for he wants to go to college在比较状语从句中有同级比较 as … as， 如： This book is as good as that one
要注意的有两点：
① as … as 中间要用原级而不是比较级。
② 用形容词还是副词，如： Mary writes as carefully as Tom 而其否定句为 not as (so) … as， 如： They didn't work so hard as we did, 而不同级比较用比较级加 than, 如： He is younger than I am
要注意的是表示"越来越"这一概念时有两个句型：
① 比较级+and+比较级，如： The days are getting longer and longer The little girl is becoming more and more beautiful
② 定冠词 the + 比较级+ the + 比较级，如： The harder you study, the more you can learn方式状语中要注意的是as (连词)与 like (介词)的区别。 as 作为连词其后接从句，如： Please do it as I did it 但后面的句子 常作省略，如： Please do it as I 而 like 是介词，其后要接的是宾语，如： Please do it like me
结果和目的状语从句主要有 so … that， so that， in order that等几种用法。
① so … that用在单数可数名词前，so + 形容词 + a + 名词 + that，如： She is so beautiful a girl that everyone likes her 或用 such + a + 形容词 + 名词 + that, 如： She is such a beautiful girl that everyone likes her
② 在不可数名词或可数名词复数前只能用 such， 如： It is such good weather we want to go for a picnic 又如： They are such good players that they should win the game.
③ 在much， many， few， little 之前只能用so， 如： I have so little money that I can't buy it
④ so … that 之间只有形容词时，则不能用 such， 如： It is so good that I want to buy
⑤ so that 其后接从句，如： I got up earlier so that I could catch the first bus
(二) 正误辨析
[误] The stories in that book was written many years ago
[正] The stories in that book were written many years ago.
[析] 作主语的名词、代词或不定式、动名词，它们往往要带有修饰词，这些词可能是形容词，也可能是短语，但谓语动词还是要取决于这个主语的数，要记住的是一个名词不可能在同一句中作两个不同的语法成份，如： book 作了 of 的介词宾语则不可能再作主语了。
[误] To read many books are good for you
[正] To read many books is good for you
[析] 不定式作主语应该看作单数主语。
[误] What he said are right
[正] What he said is right
[析] 从句作主语一定要按单数主语看待。
[正] The rich is not always happy
[误] The rich are not always happy
[析] 形容词+定冠词表示一类人，谓语动词应用复数，如： The young are very interested in study and sports
[误] The school master and writer are coming
[正] The school master and writer is coming
[析] 本句应译为：校长兼作家就要来了。而 The school master and the writer are coming 则要译为：校长和一个作家要来了。在英语表达法中确实有 The girl and boy are playing on the grass 这应译为：一个女孩，一个男孩在操场上玩。因为不可能这样两个概念作用在一个人身上。又如： the husband and wife 夫妻二人。
[误] You or she go to get some water for us
[正] You or she goes to get some wate r for us
[析] 由 or 连接的两个主语应以离谓语动词近的那一个计算其数。这样的用法还有 either … or，neither … nor， not only … but also 也有人称作"就近原则"。
[误] The teacher with a lot of students come into the classroom
[正] The teacher with a lot of students comes into the classroom
[析] 真正的主语是 the teacher， 而 with 短语是伴随状态，不影响主语的数。
[误] My glasses is broken
[正] My glasses are broken
[误] This pair of glasses are good
[正] This pair of glasses is good
[误] These kinds of butter is good.
[正] These kinds of butter are good
[析] 英语中有些名词只有复数形式，如： glasses 眼镜， shorts 短裤等。如没有量词在前时，要用复数谓语动词，但有了量词之后则要按量词的单复数计算。
[误] One of the boys are going to take part in the match
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