2.to blame… on
5.out of step
6.to leave … alone
1.~ 8. 与重点句型相同。
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)
It is not difficult to understand the disturbing effects of rapid travel on the body.
It is not difficult to realize that the disturbing effects on the body are caused by rapid travel.
One reason for this discrepancy is that different bodily events are controlled by different factors.
Protein in food stimulates wakefulness, while carbohydrates promote sleep.
The problem of Jet Lag is one every international traveler comes across.
It is not feasible to wait a few days until the bodys regulatory mechanisms are used to the new time zone.
1.In practical application, concentration is not_____the definition may imply. (99.4)
A. as simple to deal successfully with as
B. so simple to deal successfully with that
C. simpler to deal successfully with as that
D. as same simple to deal successfully with 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 a careful diet can minimize its worst effects,____.（99.10）
A. your flight will be less stressful
B. and your flights will be less stressful
C. or your flights will be less stressful
D. in order that your flights will be less 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 the morning, 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。
答案：The effects of rapid travel on the human body are much greater than we realize.
5. The other timing system belongs in our internal clocks, which , left___, would tie the body to a 25-hour rhythm. (03.4)
A. behind B. alone C. out D. aside
答案： B . 考点： 本题主要考查词组：leave alone 不管，不理，把…放在一边。
答： The effects of rapid travel on the body are much greater than we realize
答：He later blamed his poor judgement on Jet Lag.
答： Protein in meals stimulates wakefulness while carbohydrates promote sleep.
答： There is no short cut in the study of a foreign language.
答： What can we do in order to overcome Jet Lag?