The whole body is covered with skin.The surface of the skin is dead(like the hair and the nails),but it is made from a living layer(層)just under the surface.The outside dead layers wear off(磨損)all the time,with new ones replacing them,and the body forms a totally new skin every three weeks.

The skin protects the body from the outside world and it passes information from the outside.It helps to keep water in the body and to keep the body at the same temperature.Becteria(細菌)can’t get in through the skin unless it is damaged.

If the weather is cold,the blood vessels(血管)in the skin squeeze down,or contract(收縮),so that as little blood as possible comes near the surface.This means that less warmth is lost to the outside.This makes the skin look pale,or even “blue”.At the same time,the hairs on the skin are pulled upright by tiny muscles.

When it is hot,the blood vessels expand(擴大),or get wider again,to allow plenty of blood to run near the surface of the skin.This helps the body to lose heat,and the skin may look red.At the same time,the sweat glands(汗腺)produce more sweat,which cools the skin.

If your skin has ever been numb(麻木的),you will realize how important the feeling from the skin is.Nerves(神經(jīng))in the skin are sensitive(敏感的)to heat and cold,sharpness,hardness and softness,wetness and dryness and pain.If one is not able to feel these things,which can act as warnings,he is likely to be burned,cut or hurt in other ways.

The colour of the skin depends on special colour cells(細胞).These are just below the top layers of the skin.They are needed as protection from some harmful ray of the sun.The stronger the sun is,the more important it is to have a dark skin.People with pale skins may “tan”(曬黑)in the sun.This happens when the body produces extra colour cells in the skin for protection.In the sun,the skin produces a vitamin(vitamin D)which is needed for strong bones.

Which of the following statements is NOT true?

A.Our hair and nails are dead like the surface of the skin.

B.There is skin all over our body.

C.The skin of our bodies will be completely different in three weeks.

D.The surface of the skin is made of a living layer.

The second paragraph mainly tells us about______.

A.the functions of the skin

B.the information from the outside

C.the water in the body

D.the temperature of the body

Bacteria will get in through the skin______.

A.when one’s skin is numb

B.when one is ill

C.when the skin is cut

D.when the sweat glands produce more sweat

When the weather is cold,the skin will contract in order to______.

A.allow more blood near                                     B.make the skin look blue

C.keep warmth                                              D.help the body lose heat

The colour of the skin is determined by______.

A.the rays of the strong sun                                 B.colour cells

C.top layers of the skin                                       D.vitamin D

閱讀下面短文，根據(jù)所讀內(nèi)容在表格中的空白處填入恰當?shù)膯卧~。注意：每個空格只填一個單詞，并請將答案寫在答題紙上。

In a memory – based competition between you and a chimp (猩猩); who do you think would win? If you put yourself on top, you might want to guess again.

In a test that challenged participants to remember numbers, a young chimp performed better than Japanese college students.

Here's how the test worked. At Kyoto University in Japan, human students and chimpanzee participants sat in front of a computer. Five numbers, ranging from 1 to 9, were combined with one another and then, they appeared at random places on the screen.

The numbers stayed on the screen for less than a second. In the first test, for example, participants saw the numbers for 650 milliseconds (about two- thirds of a second).

Then, each number disappeared and they saw a white square instead. Participants had to touch the squares in numerical order, based on the numbers that had been there a moment before.

In this test, the students touched the boxes in the correct order about 80 percent of the time. A young chimp named Ayumu performed equally well.

  During a harder test, participants were only able to see the numbers for 210 milliseconds.

  This time, students only succeeded in putting the boxes in the correct order about 40 percent of the time. But Ayumu still could select the boxes in the right order nearly 80 percent of the time.    

Some people have what's called a "photographic memory", which allows them to remember a surprising number of details after just a quick look at something. Ayumu's memory might work in a similar way, says lead researcher Tetsuro Matsuzawa.

The chimp's young age might have something to do with his impressive performance, too. In previous tests, the Japanese researchers found that young chimps performed better than their mothers.

  The scientists are interested to see whether Ayumu loses his strong memory as he arrows older. They already know that young children sometimes have sharp memories when offered something photographical, but they lose this ability over time.

As is known to all, _______ strong and powerful China will certainly benefit _____ whole world.

A. a; a         B. the; a   C. the; the        D. a; the

— I’m leaving now.

   — ________ sure you turn off the switch.

   A. To make             B. Make                 Made                            D. Making

閱讀文章，選擇正確答案，回答問題。

It was a very foggy day in London. The fog was so thick that it was impossible to see more than a foot or so. Buses, cars and taxis were not able to run and were standing by the side of the road. People were trying to find their way about on foot but were losing their way in the fog. Mr. Smith had a very important meeting at the House of Commons and had to get there but no one could take him. He tried to walk there but found he was quite lost. Suddenly he bumped into a stranger. The stranger asked if he could help him. Mr. Smith said he wanted to get to the Houses of Parliament. The stranger told him he would take him there. Mr. Smith thanked him and they started to walk there. The fog was getting thicker every minute but the stranger had no difficulty in finding the way. He went along one street, turned down another, crossed a square and at last after about half an hour’s walk they arrived at the Houses of Parliament. Mr. Smith couldn’t understand how the stranger found his way. “It is wonderful,” he said. “How do you find the way in the fog?”

“It is no trouble at all to me,” said the stranger, “I am blind.”

1. According to the passage, we can infer that bump into means _______.

 A. knock off               B. meet by chance

C. strike                   D. traffic accident

2. Which of the following statements are NOT true?

A. The stranger has a better sight than Mr. Smith.

B. Heavy fog can cause traffic accidents.

C. It’s easy to get lost in a foggy day.

D. The fog was getting thicker and thicker.

3. Why is it no trouble at all to the stranger to find the way in the fog?

 A. Because he is a local inhabitant of London.

 B. Because he lives next to the Houses of Parliament.

 C. Because he is familiar with the route.

 D. Because he finds the way not by sight but by heart.

4. This article mainly tells us that ________.

 A. London is a foggy city.

 B. Mr. Smith works for the government.

 C. A blind stranger led the way for Mr. Smith in a foggy day.

 D. Mr. Smith had a very important meeting and lost his way in the fog.

. The thief had himself _____ by the police when he was trying to break into the hotel.

      A. to spot      B. to be spotted     C. spotted        D. being spotted

The US navy boarded an apparent pirate (海盜) ship in the Indian Ocean and kept 26 men for questioning, the navy said Sunday.

The 16 Indians and 10 Somali men were aboard a traditional dhow (單桅三角帆船) that was chased and seized Saturday by the US guided missile destroyer (驅(qū)逐艦) USS Winston Churchill, said Lieut I.eslie Hull-Ryde of US Naval Forces Central Command in Bahrain.

The dhow stopped fleeing after the Churchill twice fired warning shots during the chase, which continued no more than 87 kilometers off the coast of Somalia, the navy said. US sailors boarded the dhow and seized a cache (暗窖) of small arms.

The dhow's crew and passengers were being questioned Sunday aboard tim Churchill to determine which were pirates and which were lawful crew members, Hull-Ryde said.

Sailors aboard the dhow told navy investigators that pirates hijacked (搶劫) the ship six days ago near Mogadishu and afterwards used it to stage pirate attacks on merchant ships.

The Churchill is part of a muhinational task force patrolling (巡邏) the western Indian Ocean and Horn of Africa region to thwart (阻止) terrorist activity and other lawlessness during the US-led war in Iraq.

The Navy said it captured the dhow in response to a report from the International Maritime (海事的) Bureau in Kuala Lumpur on Friday that said pirates had fired on the MV Delta Ranger, a Bahamian-flagged bulk carrier (貨輪) that was passing some 320 kilometres off the central eastern coast of Somalia.

Hull-Ryde said the navy was still investigating the incident and would discuss with international authorities what to do with the men kept aboard the Churchill.

72. Which of the following statements about the dhow's crew is right?

A. Among them were both lawful and lawless members.

B. Their ship was stopped by the police in the African region.

C. They are all from India.

D. They are pirates attacking merchant ships.

73. "Churchill" in the text is _______.

A. a late UK prime minister                        B. an official of the US navy

C. a military ship                                        D. the title of a military action

74. Which of the following correctly describes how the dhow was captured?

a.Warning shots were fired                    b. Merchant ships were attacked by pirates.

c. The dhow was hijacked,                          d. US sailors boarded the dhow.

A. d-a-b-c       B. c-b-a-d                        C. b-a-d-c           D. a-b-d-c

75. How did the US navy find the dhow?

A. They found the dhow by accident when patrolling the sea.

B. They found the dhow after receiving reports from some merchants.

C. They found the dhow after being informed about it.

D. They found the dhow after receiving messages from the sailors on the dhow

We have every reason to believe that ______ 2010 World Exposition in Shanghai will be ______ success.

A. /; a                         B. the; /                        C. the; a                              D. a; a

—Hi, Tom. Any idea where Jane is?

    —She_______in the classroom. I saw her there just now.

       A. shall be       B. should have been                 C. must be              D. must have been

That light rail transit line(輕軌), __  _in July 2009 and ___ in 2012, will be China’s longest light rail transit line in history.

A. starting, completing             B. started, to be completed

C. to start, completed               D. starting, completed