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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 tous, 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""afew"，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.toblame... 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 oneevery international traveler comes across at some time. (para.1)
　　2.The effects of rapid travel onthe body are actually far more disturbing than we realize. (para.2)
　　3.He later blamed his poorjudgment on Jet Lag. (para.3)
　　4.Now that we understand what Jetlag is , we can go some way to overcoming it (para.4)
　　5.The other belongs in ourinternal clocks which , left alone, would tie the bodyto a 25 hour - yes , 25 - rhythm.(para.5)
　　6.In time the physiological systemwill reset itself, but it does take time. (para7)
　　7.One reason for this discrepancyis that different bodily events are controlled by different factors. (para.8)
　　8.It is not feasible to wait fourdays until the body is used to the new time zone. (para.9)
　　9.But the growth hormone isreleased during sleep, whenever in the day that sleep occurs.(para.9)
　　10.Protein in meals stimulateswakefulness, while carbohydrates promote sleep.(para.13)
　　（三）句子汉译英
　　1.不难理解高速旅行给身体带来的不适。
　　It is not difficult to understandthe disturbing effects of rapid travel on the body.
　　It is not difficult to realizethat the disturbing effects on the body are caused by rapid travel.
　　2.引起这一不同的原因之一是不同的人体活动由不同的因素控制。
　　One reason for this discrepancy isthat different bodily events are controlled by different factors.
　　3.食物中的蛋白质使人兴奋，而食物中的碳水化合物使人易于入睡。
　　Protein in food stimulateswakefulness, while carbohydrates promote sleep.
　　4.时差反应是每一个国际旅行者可能遇到的问题。
　　The problem of Jet Lag is oneevery international traveler comes across.
　　5.等待几天直到身体的调节机制自然适应新时区，这并不可行。
　　It is not feasible to wait a fewdays until the body's regulatory mechanisms are used to the new time zone.
　　历年考题
　　1.In practical application,concentration is not _____ the definition may imply. (99.4)
　　A.as simple to deal successfully withas
　　B.so simple to deal successfully withthat
　　C.simpler to deal successfully with as that
　　D.as same simple to deal successfullywith as
　　答案：A
　　考点：本题主要考查as ... as 搭配表示"和.... 一样"。而选项D 中as 的后面还有一个词same 。 因为same 表示的意思也是同样，与...同样的意思与as ... as 意义重复，因此不选D。
　　2.Understand what Jet Lag is, and how acareful diet can minimize its worst effects, ______. （99.10）
　　A.your flight will be less stressful
　　B.and your flights will be lessstressful
　　C.or your flights will be lessstressful
　　D.in order that your flights will beless stressful
　　答案：B
　　分析：本句是一个and 连接的并列句。因此只有B符合题意。
　　3.Coffee delays the body clock in themorning, and advances _____ at night. (00.4)
　　A.it
　　B.them
　　C.the coffee
　　D.the body
　　答案：A
　　分析：本句是个并列句，and 连接的两个句子结构应一致。因此，advances 后面的宾语应是the body，而为了避免重复，因此用代词it 代替。
　　4.汉译英：快速旅行对人体的影响比我们意识到的要大得多。(00.10)
　　The effects of rapid travel on thehuman body are much greater than we realize.
　　5.The other timing system belongs inour internal clocks, which , left ______, would tie the body to a 25-hourrhythm. (03.4)
　　A.behind
　　B.alone
　　C.out
　　D.aside
　　答案：B
　　考点：本题主要考查分词短语leave alone，不管，不理，把...放在一边。
　　

• international [,intə´næʃənəl] a.国际的，世界的 (初中英语单词)
• actually [´æktʃuəli] ad.事实上；实际上 (初中英语单词)
• whenever [wen´evə] conj.&ad.无论何时 (初中英语单词)
• promote [prə´məut] vt.促进；发扬；助长 (初中英语单词)
• flight [flait] n.逃走；飞行；班机 (初中英语单词)
• system [´sistəm] n.系统，体系，制度 (初中英语单词)
• successfully [sək´sesfəli] ad.成功地 (高中英语单词)
• internal [in´tə:nl] a.内部的；国内的 (高中英语单词)
• bodily [´bɔdili] a.身体的 ad.亲自 (英语四级单词)
• definition [,defi´niʃən] n.限定；定义；明确 (英语四级单词)
• feasible [´fi:zibəl] a.可行的，可实行的 (英语六级单词)
• minimize [´minimaiz] vt.将...减至最小量 (英语六级单词)