The Greenbelt, a wide belt of open land around the cities and towns of the San Francisco Bay Area, includes about 3.75 million of the Bay Area’s 4.5 million acres. The Bay Area Greenbelt is one of the largest areas of open land in any U.S. urban area. Open land is land that has few buildings and lots of natural areas. The Greenbelt’s open land includes parks, forests, beaches, and more than 8,500 farms.

What are the advantages of the Greenbelt?

The Greenbelt has many advantages for people in the Bay Area, which include:

l walking and biking areas close to the cities and towns;

l places for wild plants and animals;

l cleaner air and water;

l income from farms.

Is the Greenbelt in danger?

Five hundred seventy thousand acres of the Greenbelt are in danger. There are builders who want to build suburbs on them. If those acres become suburbs, many things will change:

l the urban and suburban area will almost double;

l many farms will disappear;

l traffic will become worse; 

l the air will become dirtier.

What is Greenbelt Alliance (联盟)?

Greenbelt Alliance, an organization that saves land in the San Francisco Bay Area, works alone and with other groups to save the Greenbelt in four ways:

1. Try to persuade people to build new buildings on land that is already urban, not on open land.

2. Make sure that the city and town governments are all making plans to save the Greenbelt.

3. Help Bay Area towns and cities to buy pieces of open land to make into natural areas.

4. Teach people in the Bay Area why the Greenbelt is important and what they can do to help save it.

1.What can we learn about the Greenbelt from the first paragraph?

A.The Greenbelt is the largest open land in the United States.

B.The Greenbelt covers much more than half of the Bay Area.

C.There are few farms on the open land of the Greenbelt.

D.There are more than 8,500 natural areas on the Greenbelt.

2.One of the advantages of the Greenbelt for people in the Bay Area is __________.

A.convenience for exercise                 B.income from sightseeing

C.cleaner city streets                      D.more plants and animals

3.The Greenbelt is in danger because __________.

A.traffic is getting worse

B.some plans to build suburbs on it

C.the suburban area has doubled

D.pollution is becoming serious

4.Which of the following is TRUE about Greenbelt Alliance?

A.It builds new buildings on open land.

B.It buys large open land for the Bay Area.

C.It educates people how to save the Greenbelt.

D.It helps the city governments make plans.

 

War Horse is a historical story by Michael Morpurgo. It is written for kids ages 8 to 12. Now just sit and get through the introduction to the plot.

In 1914, a young horse named Joey is sold to a farmer. The farmer' s son, Albert, is thrilled. He cares for Joey. When the family begins to feel the financial impact of war, Albert' s father secretly sells Joey to an army officer named Captain Nicholls. Albert begs the captain to let him join the army. Albert is too young, but Nicholls promises to take good care of Joey for him.

Nicholls treats Joey well. Though Joey still remembers Albert, he grows to like his new master. He develops a friendship with another horse, Topthorn., who belongs to Nicholls' friend, Captain Stewart. The horses and men are shipped overseas for battle. They soon face their own battle in France, and Captain Nicholls is killed.

A young soldier named Warren becomes Joey’s new owner. Joey and Topthorn do well in battle, but the Germans capture Warren and Stewart and their horses. The horses' duty of pulling carts full of wounded German soldiers earns them praise. An old farmer and his granddaughter, Emilie, dote on the horses as well. When the German army moves out of the area, Emilie and her grandfather keep the two horses. Joey and Topthorn are content to work the farm until another band of soldiers takes them. They become workhorses under bad conditions. Joey is very upset when Topthorn dies of exhaustion.

Alone and frightened, Joey wanders into "no-man's-land” between the German and English camps. An English soldier takes him back to camp.

Joey is reunited with Albert. As the war ends, Albert' s officer announces the horses will be sold in France. An old Frenchman buys Joey. The man, Emilie' s grandfather, tells Albert how Emilie lost the will to live after the horses were taken. However, he eventually sells Joey to Albert for one penny, as long as Albert promises to share Emilie' s story so her life will not be in vain. Joey and Albert return home.

1.Why does Albert's father secretly sell Joey?

A.Because he’s in need of money.

B.Because Captain Nicholls is fond of Joey.

C.Because Albert is too young to care for Joey.

D.Because he believes Joey will contribute to the country.

2.Which of the following is TRUE about Captain Nicholls?

A.He’s a rich man.

B.He’s a Frenchman.

C.He’s a man of his word.

D.He doesn’t win Joey’s trust.

3.The underlined phrase "dote on" in Paragraph 4 probably means ____.

A.train             B.ride              C.raise             D.love

4.Which of the following words can be used to describe Emilie’s grandfather?

A.Brave.            B.Generous.         C.Hardworking.       D.Humorous.

 

Research suggests that a newly-identified gene known as insomniacs(失眠症患者) may play a role in keeping us asleep. By cloning and testing this gene in about 21,000 fruit flies, Rockefeller University researchers say they have discovered an entirely new mechanism (机制) by which sleep is controlled.

By studying these flies, the researchers discovered that mutations(变异) in the insomniac gene were associated with a great reduction in sleep. While a typical fruit fly slept for an average of 927 minutes a day, the mutant flies slept for just 317. They also slept for shorter periods of time, and slept and woke more frequently.

“The results showed a great loss of both the time that the flies’ sleep lasted and their ability to remain asleep after they slept,” says researcher Nicholas Stavropoulos.

The researchers also examined the link between sleep and lifespan, finding that flies with mutations to the insomniac gene lived only about two-thirds as long as unchanged flies. But when the scientists removed insomniac only in neurons(神经细胞)---allowing it to remain in the rest of the flies’ bodies---this difference disappeared; the resulting animals slept poorly but lived just as long.

“This suggests that reduced sleep can be ‘uncoupled’(分开) from reduced lifespan, supporting the idea that some interruptions of sleep do not affect overall health, at least as far as lifespan is concerned,” Stavropoulos says.

Although flies and humans would appear to have little in common when it comes to lifestyle, scientists say that the mechanisms of sleep and wakefulness are likely to be quite similar.

“Sleep is a fundamental behavior in all animals, and it is poorly understood from a scientific standpoint, says Stavropoulos. This work could prove useful in understanding and treating sleep disorders”

1.The text is mainly about____.

A.the progress in cloning fruit flies

B.the methods of cloning fruit flies

C.the link between gene and lifespan

D.the influence of a gene on the ability to sleep

2.According to paragraph2, the mutant flies________.

A.slept about 5 hours a day

B.had problems waking up

C.didn’t seem sleepy at all

D.could not fall asleep

3.We can conclude from the text that________.

A.sleep and health go hand in hand

B.sleep can be controlled by humans

C.research into sleep is very fruitful

D.the findings are useful in medical treatment

 

根据短文内容,从下框A~F选项中选出能概括每段主题的最佳选项,并在答题卡上将该选项涂黑。选项中有一项为多余项。

A.How do we get the names for the days?

B.The origin of division of the times.

C.How did men invent the week?

D.The Jews names the seven days.

E.How did the Egyptians and the Romans name the days?

F.Reason for no names of the days.

1._____________

Do you know how the days of the week get their names? There was a time in the early history of man when the days had no names! The reason was quite simple:men had not invented the week.

2. _____________

In those days, the only division of times was the month, and there were too many days in the month for each of them to have a separate name. But when men began to build cities, they wanted to have a special day on which to trade, a market day. Sometimes these market days were fixed at every tenth day, sometimes every seventh or every fifth day. The Babylonians decided that it should be every seventh day. On this day they didn't work, but met for trade and religious festivals.

3. _____________

The Jews followed their example, but kept every seventh day for religious purposes. In this way the week came into existence. It was the space between market days. The Jews gave each of the seven days a name, but it was really a number after the Sabbath day(which was Saturday). For example, Wednesday was called the fourth day (four days after Saturday).

4. _____________

When the Egyptians adopted the seven­day week, they named the days after five planets, the sun, and the moon. The Romans used the Egyptian names of their days of the week: the day of the sun, of the moon, of the planet Mars(火星), of Mercury(水星), of Jupiter(木星), of Venus(金星), and of Saturn(土星).

5. _____________

We get our names for the days not from the Romans but from the Anglo­Saxons, who called most of the days after their own gods, which were roughly the same as the gods of the Romans. The day of the sun became Sunnandaeg, or Sunday. The day of the moon was called Monandaeg, or Monday. The day of the Mars became the day of Tiw, who was their god of war. This became Tiwesday, or Tuesday. Instead of Mercury's name, that of the god Woden was given to Wednesday. The Roman day of Jupiter, the thunderer, became the day of the thunder god Thor, and this became Thursday. The next day was named for Frigg, the wife of their god Odin, and so we have Friday. The day of Saturn became Saeterndaeg, a translation from the Roman, the Saturday.

 

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