比较状语从句讲解及精选练习

1、比较状语从句比较状语从句表达人或事物的属性或特征的不同程度。主要运用于形容词和副词的原级、比较级及最高级的句子之中。 原级：asas （和一样），not so （as）as （和不一样）;比较级：morethan （更）；最高级：The most in/of, the + 形容词 +est of/in。一原级比较1. as+原级+as （第一个as是副词，含 如此”的意思，在主句说明所比内容的程度；第二个as是连词，含 “比”或“如此 ”的意思,引导从句） 。例如：Our classroom is as big as theirs. 我们的课室跟他们的一样大。I hope you like i

2、t as much as I do. 我喜欢你跟我一样喜欢它。在这种结构中，比较成分的前面常用表示倍数的词如-times （ 倍）,twice （两倍）等来表示相比较的两个成分相差的倍数，通常译作像几倍那样多” 是的几倍”。例如：The speed of sounds in water is about four times as great as in air声音在水中的速度是空气中的4倍左右。This book is twice as thin as that one. 这本书的厚度是那本书的二分之一。2. not so / as-as-（不像那样，不如）。第一个as/so是副词，在主句中

3、作状语，修饰其后的形容词/副词；第二个as是连词，引导从句。not soas比not asa用得比较普遍。例如：It is not as easy as you think.事情并不像你想的那么容易。The work did not go so smoothly as we hoped. 这工作并不像我们希望的那样顺利。二比较级1. 形容词/畐恫的比较级+than+被比较的对象。表示两个人或事物在某（些）方面的差别。than是连词，引导从句。后面被比较对象如果是名词,多用省略形式,省去与主句中相同的部分。Man grows fast er than the planet he inhabits

4、. 人类成长的速度远比他居住的星球快得多。注意：从句中的主语（名词）如果与主句中的主语一致，为了避免重复，常用that代替不可数或某可数名词,用 those 代替可数复数名词,用 one 或 ones 代替可数名词。例如：The result of this experiment is better than that of the last one.这次实验的结果要比上次好。The students in our class are more diligent than those in their class. 我们班的学生比他们班的学生用功。比较状语从句的动词，如果与主句的谓语动词一致，

5、且为行为动词时，常用do （does, did）代替，以免重复。例如：We have produced even more coal this year than we did that year. 我们今年出产煤要比去年出产得更多。She drives better than her husband does. 她开车开得比她丈夫好。2. "no比较级+than "（不比多，不少于）。no是副词，在主句中作状语，修饰形容词或副词的比较级； than 是连词,引导从句。 例如：Tom is no less diligent than peter.汤姆用功不比彼得差。（汤姆和

6、彼得同样用功）He feels no better today than he did yesterday.他今天的感觉不比昨天好/他今天的感觉跟昨天同样不好。“ not more than ”不如 （前者不如后者 ）Jack is not more dilige nt than Joh n.杰克不如约翰勤奋。3. 句型the -the （越越）。即：从句：the +比较级 ，主句：the +比较级 The more we study, the more we discover our ignorance. 我们越学习，就越发现自己无知。主句如果是将来时，从句可用现在时代替将来时。例如：The

7、 Ion ger the treatme nt is delayed, the worse the progno sis will be. 延误治疗的时间越长，预后越差。三.最高级1. The most in/ofThis book is the most in teresti ng of the three.这本书是三本中最有趣的。2. the + 形容词 +est of/inThis road is the busiest street in our city.这条路是我们城市最繁忙的街道。3. one of the + 名词(复数)之一(用于最高级)Tom is one of the b

8、est students in our school.Tom 是我们学校最好的学生之一。一.填空：1. He looksa brick wall. (n ervous)2. Driveyou can. (safe)3. His new boss is muchhis last. (in teresti ng)4. The car is running lessit used to. (smoothly)5. You areperson I' ve met. (annoying)6. we ll drive a bityou do, so we' ll get there fir

9、st. (fast)7. I like Jack and Tom, but I think Jack isof the two. (nice)8. You' re farI am. (tolerant)9. Is your mother any? (relaxed)10.She' sof the Smith girls. (se nsible)11.Could you comeyou usually do.12.Honey is just aboutsugar. (sweet)13.Doesn' t Alice look a bithe did last week? (

10、un happy)14.What isjoke you have ever heard? (funny)15.We boughtboards we could find. (thick)翻译：1. 天气不如去年冬天那么冷。2. 他行动起来比他妹妹慢。3. 他是班里最高的学生。4. 他跟他哥哥一样刻苦工作。5. 她是姐妹中最漂亮的一个。二短文填空Dear Jim,We' ve moved into the old house at last! The repairs took longer and were more expensive we hadexpected, but livin

11、g in the old house is just much fun we had hoped it would be!The cleaning wasn ' t quitebadwe were anticipa预料(),but of course,more we cleaned, less we enjoyed it! But we knew that the sooner we started, we ' d have it all finished.The actual removal went quit smoothly. Fortunately, the remov

12、al men weren ' t careless we hadfeared, so we had fewer breakages expected. The grandfather clock stood up to it all very well!How are things with you and the family? Is life in New York still busy ever?Sorry I haven ' t written earlier, but as we say,“Better late never!”PeterKey:一、1. as . as 2. as . as 3.more . than 4. . than 5.the most . 6. faster than 7. the nicer 8.more . than9.more . 10. the most . 11. more earlier than 12. as . as 13. . than 14. the funniest 15. the thickest二、1. The weather is not so cold as it was last winter.2. He moves more slowly tha