第二节完形填空（共20小题；每小题1.5分，满分30分）

　　阅读下面短文，从短文后各题所给的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

　　Columnist Dave Barry says this about his father:"My dad would try anything - carpentry(木匠活),electrical wiring,roofing and so on.From watching him,I learned a lesson that still 36 to my life today:no matter how difficult a task may seem, 37 you're not afraid to try it,you can do it."

　　I learned from my parents the value of "going for it"." 38 ventured(冒险),nothing lost" is the motto of too many of us.Many people are so afraid to 39 that they never venture beyond the familiar."Better to be safe than sorry",has 40 too many people in the cocoon(保护膜) of their 41 zones.

　　A delightful 42 tells that Col.Robert Johnson of Salem,New Jersey,announced that he would take a 43 risk.He let the town know that he would 44 a wolf peach on the steps of the country courthouse at noon on September 26,1820. "Why would he take such a chance?" asked the 45 people.

　　Scientists and doctors had long declared the wolf peach to be 46 .If the wolf peach was too ripe and warmed by the sun,they told him he would be exposing himself to brain fever.Should he somehow 47 the experience,the skin of the 48 would stick to the lining of his stomach(他的胃黏膜) and 49 cause cancer.

　　Nearly 2,000 people 50 the square to see Col.Johnson eat the "poisonous" peach - now known as the tomato.

　　Col.Johnson believed his 51 was small,but it must be take if the 52 about the peach were to be 53 .Who has accompished anything worthwhile 54 taking a risk?

　　Much like the tortoise it makes 55 only when it sticks its neck out.

　　36.A.refers         B.applies       C.tends          D.leads

　　37.A.if            B.since         C.although       D.unless

　　38.A.Anything      B.Something    C.Nothing        D.Everything

　　39.A.fail           B.win          C.succeed        D.leave

　　40.A.turned        B.trapped       C.forbidden      D.orced

　　41.A.comfortable    B.miserable     C.surprising     D.unimportant

　　42.A.novel         B.message      C.joke          D.story

　　43.A.private        B.public       C.secret        D.national

　　44.A.buy          B.sell          C.eat           D.cut

　　45.A.puzzled       B.disappointed   C.angry        D.happy

　　46.A.delicious       B.smelly        C.salty        D.poisonous

　　47.A.enjoy         B.survive         C.understand  D.know

　　48.A.wolf         B.seed           C.peach      D.body

　　49.A.eventually     B.firstly          C.lately       D.hardly

　　50.A.reached      B.decorated         C.surrounded  D.crowded

　　51.A.audience     B.risk            C.fruit        D.size

　　52.A.myths        B.ingredients    C.truths         D.prices

　　53.A.changed      B.adopted        C.removed      D.grasped

　　54.A.without      B.for            C.with         D.except

　　55.A.sense        B.trouble         C.room        D.progress

II. 完形填空（共20小题；每小题1分，满分20分）阅读下面短文，掌握其大意，然后从   21—40题各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。
Throughout history man has had to accept the fact that all living things must die. But people now live longer than they  21  . Yet, all living things still show the  22   of aging, which will eventually  23   death.
Aging is not a disease, but as a person passes maturity (成熟期), the cells of the body and the  24   they form do not function as well as they   25  in childhood and teenage years. The body provides less   26  against disease and is more   27  to have accident.
A number of related causes may  28  aging. Some cells of the body have a fairly long life, but they are not  29   when they die. As a person ages,  30   of brain cells and muscle cells decreases.  31   body cells die and are replaced by new cells. In an aging person the  32  cells may not be as workable or as capable  33   growth as those of a young person.
Another   34   in aging may be changes within the cells   35  . Some of the protein chemicals in cells are known   36  with age and become less elastic (有弹性的). This is why the skin of old people wrinkles (皱纹) and   37 . This is also the reason why old people   38   in height. There may be other more important chemical changes in the cells. Some complex cell chemicals, such as DNA and RNA, store and   39  information that the cells need． Aging may affect this   40   and change the information-carrying molecules so that they do not transmit the information as well.
21. A．would             B．be used to               C．used to            D． used
22. A．function      B．effect             C．affect         D． appearance
23. A．lead in        B．give in                    C．run into          D． result in
24. A．hands         B．feet                       C．heart             D． organs
25. A．do           B．has done               C．did               D． had done
26. A．energy       B．protection            C．vigor         D． power
27. A．likely         B．probable              C．possible          D． alike
28. A．attend to       B．contribute to         C．add to          D． devote to
29. A．replaced      B．reborn                 C．recovered     D． surrendered
30. A．a number      B．the amount          C．the number   D． a great deal
31. A．The others          B．The other         C．Another       D． Other
32. A．old           B．left                          C．new          D． other
33. A．to           B．for                    C．of            D． in
34. A．factor         B．effect                        C．reason          D． element
35. A．for themselves B．of themselves       C．themselves    D． on their own
36.   A．change         B．to have changed    C．to change     D． to be changed
37. A．hangs loose   B．hangs loosely      C．is hanging loosely    D．is hanging loose
38. A．increase        B．shrink                 C．lengthen       D． decrease
39. A．pass away     B．pass by                C．pass off        D． pass on
40. A．improvement  B．procession           C．approach      D． process

As one comes to some crossroads, he or she sees a sign which says that drivers have to stop when they come to the main road ahead. At other crossroads, drivers have to go slow, but they do not actually have to stop unless, of course, there is something coming along the main road; and at still others, they do not have either to stop or to go slow, because they are themselves on the main road.
Mr. Williams, who was always a very careful driver, was driving home from work one evening when he came to a crossroad. It had a “SLOW” sign. He slowed down when he came to the main road, looked both ways to see that nothing was coming, and then drove across without stopping completely.
At once he heard a police whistle, so he pulled into the side of the road and stopped. A policeman walked over to him with a notebook and a pen in his hand and said, “You didn’t stop at that crossing.”
“But the sign there doesn't say ‘STOP’.” answered Mr. Williams, “It just says ‘SLOW’, and I did go slow.”
The policeman looked around him, and a look of surprise came over his face. Then he put his notebook and pen away, scratched his head and said, “Well, I’m in the wrong street!”
【小题1】When he was stopped by a policeman, he ____.

Throughout seafaring history, ships and sailors have been lost to storms, accidents and war. Until recently, most of these ships were weak wooden sailing vessel (船只), their skeletons(骨架) quickly eaten away by sea creatures. Now, large vessels made of steel float on the seas. Thousands of these huge ships have been lost in times of war and in times of peace.

The bones of great metal ships, unlike the wooden vessels of old, survive the destruction of the sea long enough to become home and harbor for underwater life of all kinds. Shipwrecks(残骸) often provide the only hard surface and structure at the sandy bottom of the sea, something many sea creatures need.

The ship has been underwater for only five days. Its surface is still clean. Six weeks later, the wreck is covered with a slimy layer of algae(海藻), but it is still recognizable as a ship. Soon, animals that need to attach themselves to a hard surface, like the feather duster worms, make the wreck their home.

In warm waters, coral polyps(珊瑚虫) settle on the wreck and begin the process of building a rock-like crust on the ship. Small fish are attracted on all of these creatures. Larger fish come to feed on these small fish that hide in the wreckage. Eventually, the largest animals are attracted to the rich life on the shipwreck.

Shipwrecks give us valuable information about how sea plants and animals develop. We know exactly how long this wreck has been under water and how long sea life has been growing on it. Yet even the strongest steel shipwreck will finally be destroyed by the flows of water. But long after this wreck has been broken apart, it will still act as a reef (礁石). Layer upon layer of sea life has formed a structure that is now more natural than artificial, and will remain an island of life under the sea.

1.Which of the following is NOT TRUE about shipwrecks?

A．Most ships in ancient times sank easily and become shipwrecks.

B．Shipwrecks, for scientists, are worth researching to get valuable information.

C．The skeletons of old wooden shipwrecks will exist for quite a long time.

D．Some sea animals tend to seek food on the shipwrecks.

2.The writer’s purpose in writing the article is to tell us_____.

A．the differences between the ancient vessels and the modern ones

B．how the ships become shipwrecks at sea

C．how coral polyps live on the wreck in warm waters

D．the value of studying shipwrecks at the bottom of the sea

3.Which of the following is closer to the underlined “crust”?

A．a hard outer covering                    B．the skin of a rock

C．a hole in a ship                         D．a small house

4.What will happen to shipwrecks in the end?

A．They will be pulled out of the sea for research.

B．They are likely to disappear and form reefs.

C．They will become an island under the sea.

D．They will be like works of art.

Sharks are among the oldest animals on Earth. There are hundreds of kinds of sharks. Most are about two meters long. The dogfish shark, however, is less than twenty centimeters in length. A shark has an extremely good sense of smell. It can find small amounts of matters in water, such as blood, body liquids and chemicals produced by animals. These powerful senses help sharks find their food. Sharks eat fish, other sharks, and plants that live in the ocean.

Sharks grow slowly. About forty percent of all sharks lay eggs. The others give birth to live young. Some sharks carry their young inside their bodies as humans do. Some sharks are not able to reproduce until they are twenty years old. Most reproduce only every two years. And they give birth to fewer than ten young sharks. For this reason, over-fishing of sharks is of special danger to the future of the animal.

Sharks are important for the world’s oceans. They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too large. This protects the plants and other forms of life that exist in the oceans.

People hunt sharks for sport, food, medicine and their skin. Experts say the international market for some kinds of sharks has increased because many parts of a shark are valuable.Collectors pay thousands of dollars for the jaws of a shark. Shark liver oil is a popular source of Vitamin A. The skin of a shark can be used like leather.

In Asia, people enjoy a kind of soup made from shark fins. Experts say a fisherman can earn a lot of money for even one kilogram of shark fins. Sharks are among the oldest animals on Earth, but some sharks are in danger of disappearing from Earth. If too many sharks in one area are killed, that group of sharks may never return to normal population levels.

1.. Which of the following words best describes the situation sharks are in?

2. Sharks eat other fish, __________.

3. According to the passage, many parts of a shark are valuable EXCEPT ________.

4.The author thinks that______.