复合题Directions: Read the following text carefully and then translate the underlined segments into Chinese. Yourtranslation should be written clearly on ANSWER SHEET 2.People have wondered

复合题The discovery of radar, the sending out of electromagnetic waves and judging the obstacles ahead by the returning echo, made some investigators wonder if this was not the system employed by bats. A series of experiments was conducted, and some fascinating things were discovered. First of all, some bats were blindfolded（ 蒙住眼睛） with tiny pieces of wax over their eyes, and as usual they had no difficulty in flying to and from without, hitting anything. Then it was found that if they were blindfolded and their ears were covered they were no longer able to avoid collisions（碰撞） , and, in fact, did not seem at all keen on flying in the first place. If only one ear was covered they could fly with only moderate success, and would frequently hit objects. This showed that bats could get information about the obstacles ahead by means of sound waves reflected from them. Then the investigators covered the noses and mouths of their bats, but left the ears uncovered, and again the bats were unable to fly without collision. This proved that the nose, ears, and mouth all played some part in the bat’s radar system. Eventually, by the use of extremely delicate instruments, the facts were discovered. As the bat flies along, it sends out continuous succession of supersonic（超声的） squeaks（尖叫声） , far too high for the human ear to pick up.They give out, in fact, about thirty squeaks a second. The echoes from these squeaks, bouncing off the obstacles ahead, return to the bat’s ears and, in some species, to the curious fleshy ridges round the creature’s nose, and the bat can thus tell what lies ahead, and how far away it is. It is, intact, in every detail the principle of radar.

复合题Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on the ANSWER SHEET.Text 2Monkeys and chimpanzees, although

复合题Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on the ANSWER SHEET.Text 4How good are grades as method of

复合题Directions: For passages 1 to 4, each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best

复合题Directions: For passages 1 to 4, each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). Decide on the best choice and

复合题Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Markyour answers on ANSWER SHEET 1.Text 1“High tech” and “s

复合题Directions: Translate the following sentences into Chinese. Write down your answers on the Answer Sheet.

复合题Directions: Translate the following sentences into English by using the words or phrases provided. Write down youranswers on the Answer Sheet.

复合题Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on the ANSWER SHEET.Text 2In science, a theory is a reasona

复合题Section BDirections: There are 3 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D.

复合题Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET.There was a time when parents who wanted an educational present

复合题Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Markyour answers on ANSWER SHEET 1.Text 3Though it is mere 1 to 3

复合题Directions: Translate the following sentences into English by using the words or phrases provided. Write down youranswers on the answer sheet.

复合题Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1.Text 2Arabs consider it extremely bad man

复合题Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.There is virtually no limit to how one can serve community intere

复合题Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on the ANSWER SHEET.Text 2The Norwegian Government is doing

复合题Directions: Translate the following sentences into Chinese. Write down your answers on the Answer Sheet.

复合题Directions: In the following text, some sentences have been removed. For Questions 【B1】to 【B5】, choose the most suitable one from the list A—G to fit into each of the numbered blanks. There are

复合题The aging process may not be the result of a rigid genetic program that in itself dictates longevity. On the contrary, what we see as maximum life span may simply be the complex and indirect result of multiple traits in the organism that are internally tied to normal development. In other words, it is not that the body is somehow pre-programmed to acquire gray hair, wrinkles, or diminished metabolic（新陈代谢的） functions. Rather, these signs of aging are simply telltale side effects of activities of the organism.Consider the analogy of an “aging car”. Suppose a distinctive “species” of automobile were designed to burn fuel at a fixed temperature with an efficient rate of combustion（燃烧） . That specific rate of combustion is required for appropriate acceleration, cruising speed, fuel mileage（油耗） and so on. But, when the car functions in this way over a period of time, the car also, of necessity, produces certain emission by-products that, over time, begin to clog the cylinders, reduce automotive efficiency, and lead to the breakdown and final collapse of the machine.In the case of the human “car”, it could be the burning oxygen in normal metabolism generates harmful by-products in free radicals that prove toxic to the organism. What we see here may be a basic trade-off: oxygen is essential for life yet harmful to our eventual well-being. In this view, the human “car” is not intentionally designed to accumulate toxic emissions in order to collapse. But there seems to be no way for the car to function at optimum levels without the destructive by- products.But suppose we could find some special “fuel additive” that eliminates toxic emissions. Would we then have an “immortal” car? Probably not. Changing the fuel used in your car won’t prevent accidents, nor would any fuel additive prevent rusting or the wearing down of springs and shock absorbers. The human “car” analogy, of course, is misleading, because an organism, unlike a manufactured object, has a capacity for repair and self-generation, at least up to certain point. The whole question about why we grow old is finding out why that capacity for self-repair ultimately seems unable to keep up with the damage rate: in short, why aging and death seem to be universal.