语法　练习

　　一、补充语法知识

　　形容词和副词的比较级

　　1.比较级+than

　　steel is harder than iron.

　　2.用词或词组修饰比较级，表示强调或稍微。

　　3.the+比较级，the+比较级：越来越…The nearer an object is to us， the larger it looks.

　　比较级重复，

　　4.more and more越来越多

　　colder and colder越来越冷

　　注意事项：

　　1.n.的可数与不可数，修饰可数名词用“few”“a few”，所以比较级“fewer”后面接的也是可数名词。但是“less”即“little”的比较级也修饰不可数名词。

　　2.没有比较级的词：如empty

　　二、单元练习

　　（一）词汇英译汉：

　　1.flight

　　2.negotiation

　　3.transport

　　4.overcome

　　5.internal

　　6.external

　　7.rhythm

　　8.feasible

　　9.assumption

　　10.promote

　　1.effect on

　　2.to blame… on

　　3.to advantage

　　4.now that

　　5.out of step

　　6.to leave … alone

　　（二）句子英译汉：

　　1.The problem of Jet Lag is one every international traveler comes across at some time. （para.1）

　　2.The effects of rapid travel on the body are actually far more disturbing than we realize. （para.2）

　　3.He later blamed his poor judgment on Jet Lag. （para.3）

　　4.Now that we understand what Jet lag is ， we can go some way to overcoming it （para.4）

　　5.The other belongs in our internal clocks which ， left alone， would tie the body to a 25 hour - yes ， 25 - rhythm.（para.5）

　　6.In time the physiological system will reset itself， but it does take time. （para7）

　　7.One reason for this discrepancy is that different bodily events are controlled by different factors. （para.8）

　　8.It is not feasible to wait four days until the body is used to the new time zone. （para.9）

　　9.But the growth hormone is released during sleep， whenever in the day that sleep occurs.（para.9）

　　10.Protein in meals stimulates wakefulness， while carbohydrates promote sleep.（para.13）