题目内容

Polar bears are suffering in a much 1. (warm) world.

Polar bears live in environments too cold for most animals. During much of the year, they live and hunt on the frozen Arctic sea ice. Nature has 2. (prepare)them for the cold conditions. But nothing has prepared the bears for the danger 3. threatens the only home they know.

The polar bears’ world is melting. Studies show that the amount of the polar ice 4.(have)decreased by 9.8% every 10 years since 1978. Now about 20,000 to 25,000 polar bears live in the Arctic. Polar bears rely 5.the sea ice for their survival. “The sea ice is more 6. just this platform that the bears walk over,” says Andrew Derocher, 7. scientist who studies North American polar bear populations. “8. it, they can’t exist.”

Some melting and refreezing of the polar ice is natural. But in a warmer world, these cycles speed up, and bears have less time 9. (hunt). Normally, they have three months in the spring when they gain more weight. The extra fat is used later, when the bears are not 10.

(active) hunting.

练习册系列答案
相关题目

Thousands of persons in Peru are suffering from the disease cholera. Medical experts say it is the first time in their century that cholera has reached the western part of the world. The Untied States Centers for disease Control says the kind of cholera has been spreading throughout the world since 1961. It was discovered that year in Indonesia. Since the first case in Peru, more than sixteen thousand people have been affected and about one hundred have died.

Cholera is caused by polluted food and water. People become infected (传染 ) when they eat the polluted food or drink the polluted water. If untreated immediately, they may die within hours. Most victims however , can be saved. treatment includes drugs and replacement of body fluids ( 液体) directly into the blood.

Medical researchers have developed a vaccine ( 菌苗) medicines to protect against cholera. But the vaccine is only about 50% effective. And it protects against cholera for only about six months. Medical experts say the best way to fight cholera is to prevent it. They also say people should not eat uncooked food or food that has not been cooked long enough. People who live in areas where cholera has been found should wash their hands before eating and cooking. They should drink only water that has been boiled or made pure with chemicals.

1.The underlined word Cholera in the first paragraph means____.

A. a certain place in Peru B. a kind of illness which may make people die.

C. a certain place in Indonesia D. A certain medicine to deal with diseases.

2.Cholera results from (由于……结果 ) _____.

A. Peru and Indonesia B. the different peoples in the world

C. the different areas in the world D. polluted water and polluted food

3.How to treat the people who have been caught by cholera? _____.

A. By medicines and blood improvement B. By eating unpolluted food

C. By drinking unpolluted water D. By taking them to a separated place

4.The most effective way of avoiding cholera is ____.

A. seeing doctors as soon as possible

B. fighting against it

C. paying attention to the eating and drinking

D. taking vaccine immediately

He was once referred to as the Picasso of poetry. Beloved by Chileans of all classes, he is one of the most widely read and respected poets in history. And this year is the 100th birthday of Pablo Neruda (1904-1973).

Born with the name Neftali Ricardo Reyes Basolto, he was a tall, shy and lonely boy. He loved to read and started to write poetry when he was ten. The American poet Walt Whitman, whose framed picture Neruda later kept on his table, became a major influence on his work.

However, his father did not like the idea of having a poet for a son and tried to discourage him from writing. To cover up the publication of his first poem, he took the pen name Pablo Neruda.

In 1924 Neruda gained fame with his most widely read work “Twenty Love Poems and a Song of Despair’’. Yet his rich experience as a diplomat and exile made him go beyond the theme of love. His work also reflected the political struggle of the left and development of South America. He was awarded the Nobel Prize for Literature in 1971.

Neruda loved the sea which he saw as creative, destructive and forever moving. He found inspiration in the power and freedom of the waves and the seabirds on the coast. “I need the sea because it teaches me,” he wrote. “I move in the university of the waves.” He loved how the sea forever renewed itself, a renewal echoed in his work.

1.The underlined word “Picasso” can probably be replaced by “________”.

A. most important person B. famous person from Picasso

C. freedom fighter in Picasso D. poem fan

2.Neftali Ricardo Reyes Basolto took the pen name Pablo Neruda because ________.

A. literary greats usually used the pen name

B. his father encouraged him to use the name

C. he wanted to prevent his father knowing the publication

D. he was greatly influenced by other poets

3.Which of the following is not the theme of his works?

A. Love. B. Political struggle.

C. Social reform. D. Development of South America.

4.The last paragraph mainly tells us ________.

A. the sea gave Neruda vast writing inspiration

B. the beautiful scenery along the Chile coast

C. Neruda’s poems were widely read overseas

D. Neruda loved to write his poems near the sea

Forget Cyclists, Pedestrians are Real Danger

We are having a debate about this topic. Here are some letters from our readers.

■ Yes, many cyclists behave dangerously. Many drivers are disrespectful of cyclists But pedestrians are probably the worse offenders.

People of all ages happily walk along the pavement with eyes and hands glued to the mobile phone, quite unaware of what is going on around them. They may even do the same thing while crossing a road at a pedestrian crossing or elsewhere. The rest of us have to evade (避让) them or just stand still to wait for the unavoidable collision.

The real problem is that some pedestrians seem to be, at least for the moment, in worlds of their own that are, to them, much more important than the welfare of others.

——Michael Horan

■ I loved the letter from Bob Brooks about cyclists (Viewpoints, May 29). I am afraid they seem to think they own the roads.

I was walking across Altrincharn Road one morning when a cyclist went round me and on being asked what he was doing he shouted at me.

The government built a cycle lane on the road but it is hardly used.

The police do nothing. What a laugh they are!

The cyclists should all have to be made to use the cycle lanes and wear helmets, fluorescent (发荧光的)jacket and tights at night and in the morning. They should pay some sort of tax and be fined for not wearing them.

——Carol Harvey

■ Cyclists jump on and off pavements (which are meant for pedestrians), ride at speed along the pavements, and think they have a special right to go through traffic lights when they are on red.

I was almost knocked down recently by a cyclist riding on the pavement when there was a cycle lane right next to him.

Other road users, including horse riders, manage to obey the rules so why not cyclists?

It’s about time they had to be registered and insured, so when they do hit a pedestrian or a vehicle, or cause an accident, at least they can be traced and there might be an opportunity to claim.

——JML

Write to Viewpoints of the newspaper.

1.Michael Horan wrote the letter mainly to show that .

A. drivers should be polite to cyclists

B. road accidents can actually be avoided

C. some pedestrians are a threat to road safety

D. walking while using phones hum one’s eyes

2.Carol Harvey suggests that cyclists should .

A. be provided with enough roads

B. be asked to ride on their own lanes

C. be made to pay less tax for cycling

D. be fined for laughing at policemen

3.The underline word “they” in the third letter refers to .

A. accidents B. vehicles

C. pedestrians D. cyclists

4.The three letters present viewpoints on .

A. real sources of road danger

B. ways to improve road facilities

C. measures to punish road offences

D. increased awareness of road rules

Do you know how to play a game called "Musical Chair"? It is easy to play and most people enjoy it. All you need are some chairs, some people and some way of making music. You may use a piano or any other musical instrument, if someone can play it. You may use a tape recorder(录音机). You can even use a radio.

Put the chairs in a row. The chairs may be put in two, back to back. A better way is to have the chairs in one row with each chair facing in the opposite(相反的) direction to the chair next to it.

The game is easy. When the music starts, the players walk around the chairs . Everyone goes in the same direction, of course, they should walk in time to the music. If the music is fast, they should walk quickly. If the music is slow, they should walk slowly.

The person playing music cannot see the people in the game. When the music stops, the players try to sit on the chair. If a person cannot find a chair to sit on, he drops out. Then, before the music starts again, one chair must be taken away. When the music stops again, one more player will be out.

At last, there will be two players and one chair. The one who sits on the chair when the music stops is the winner.

1.If ten person are playing musical chairs, you must begin with______.

A. ten chairs B. nine chairs

C. eleven chairs D. one chair

2.Which of the following is not suitable for playing musical chairs?

A. A tape recorder. B. A radio.

C. A telephone. D. A piano.

3.The chairs should be put_______.

A. in a line B. with the desks

C. all over the room D. before the winner

4.When the music starts, the players must _______.

A. run about the room B. walk around the chairs

C. get down D. sit down on the chair

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网