题目内容

Mike is 1.8 meters tall. He is _________ boy in his class.

A. tall B. taller C. tallest D. the tallest

D 【解析】句意:迈克现在1.8米高了,他是他班里最高的男孩。tall意思是“高的”,其比较级是在后面加-er,最高级是在后面加-est。三者或三者以上比较要用最高级,根据"He is _________ boy in his class"以及给出选项,可知他是班里最高的男孩,形容词的最高级之前要加定冠词the,故答案选D。
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Elephants losing tusks

People killing elephants for their tusks has long been a problem worldwide. Although laws have been introduced to ban the selling of tusks, they have not been enough to save the elephants.

But the giant animals have now “developed” their own solution to stay safe from hunters----by not growing tusks at all.

Scientists found that among female African elephants, as many as 98 percent of them now have no tusks, reported The Independent newspaper. The number was 15 percent in 1998 and only 1 percent in 1930, according to the BBC.

But this solution has less been developed by elephants themselves, and more by evolution.

Evolution is all about natural selection(选择). When an environment changes, for example, animals and plants that can deal with the change will stay alive while others won’t. And for elephants, the change came when hunters started killing them for their tusks. As a result, elephants with big tusks couldn’t stay alive because hunters wanted to shoot them. Those born with tusks managed to stay alive and give their “tuskless” genes(基因)to their babies. As a result, more and more elephants are now being born without tusks.

But this solution, as effective(有效地)as it might be, is a high price to pay for elephants. Tusks are important and play a number of roles, especially for male elephants, including fighting with other males, lifting and digging things up.

This is why scientists hope there can be other ways to protect elephants against hunters. They believe that when they are less likely to be killed , elephants will be able to grow tusks again.

To David Cowdrey, head of Policy and Campaigns at the International Found for Animal Welfare UK, however, this is not very likely to happen in the near future.

“Unfortunately, it comes down to the markets,” he told The Guardian. “As long as people will pay high prices for products that come from endangered animal and plants, they’re going to have price on them and that causes the hunting.”

1.Which of the following is TRUE according to the passage?

A. Elephants learned to lift and dig things up without tusks.

B. Elephants chose not to grow tusks because of their dangerous environment.

C. Elephants with no tusks had a greater chance of passing down their genes.

D. A tuskless elephant gives birth to more baby elephants than an elephant with big tusks.

2.The underlined word “evolution” in paragraph 4 means “_________” ?

A. gradual change B. sudden development C. complete loss D. rapid growth

3.What can you learn from the last two paragraphs?

A. We should work out a better solution to protect elephants.

B. People should pay lower prices for products made with elephant tusks.

C. Elephants’ living environments will soon be improved.

D. The key to elephant protection is stopping the trade in tusk products.

1.B 2.A 3.D 【解析】短文大意:大象是一种濒危动物,由于象牙制品的买卖而导致大量的大象遭到捕杀。虽然已经出台法律禁止出售象牙,但它们还不足以拯救大象。大象也通过自身的进化来拯救自己,那些长着象牙的大象设法活下来,会把它们的“无牙”基因送给他们的孩子,结果越来越多的大象现在没有牙齿就出生了,但是象牙对大象来说非常重要,科学家们希望有其他的方法来保护大象不受猎人的攻击。他们...

Answer the questions(根据短文内容回答下列问题)

Andrew Carnegie was born in 1835 in Scotland. He was from a poor family. When he was twelve, his family moved to the USA. They wanted a better life. There, Andrew started to work right away. He got a job in a factory. He was a good worker, but he didn’t like the job. Later, he changed his job. He worked at the Railroad Company where everybody liked him. He did many different jobs. His salary got higher every year.

In his free time, Andrew loved to read. But in those days, the United States didn’t have free public libraries. Luckily, he lived with a rich man with many books, who let young boys use his library for free, so Andrew could read as much as possible. He read throughout his life.

Andrew learned a lot at the railroad company. He realized that the railroad was very important for big countries. He had a idea to start a business with railroads. He saved all his money and opened a business at the age of thirty years.

First, his company made bridges for the railroads. Ten years later, it made steel for bridges, machines, and many other things. Soon he was the richest man in the world.

Andrew liked to make money. But he believed it was very important to help other people. In

1901, he sold his company for $480 million. He started to give away his money to make new libraries and colleges all over the United States. He built 2811 libraries. Andrew also gave a lot of money to people who worked for peace. In 1903, he gave $1.5 million to build a Peace Palace in the Netherlands.

Andrew Carnegie died in 1919.He was eighty-four years old. During his life, he gave away nearly all of his money. He gave away over $350 million for education and peace. There are colleges, libraries, hospitals, and parks named after Andrew Carnegie.He helped millions of

people all over the world to study and learn.

1.Andrew Carnegie used to work in a factory, didn’t he?

2.Why could Andrew Carnegie read as much as possible in those days?

3.How old was Andrew Carnegie when he opened a business?

4.What did Andrew Carnegie’s company do?

5.How did Andrew Carnegie help others after he sold his company?

6.What can you learn from Andrew Carnegie?

1.Yes, he did. 2.Because a rich man let young boys read books for free(he could read books in a rich man’s library for free) 3.He was thirty. 4.It made bridges for the railroads and later mad...

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