Richard Gray was a famous explorer. He was also a millionaire. He had visited every country in the world. He had crossed the Antarctic, flown across the Atlantic by balloon, and climbed Mount Everest. Last year he decided to walk across Death Valley, the hottest place on Earth. He walked for days over the hot desert sand. One night he found the camp where he had been the night before. Gray had walked in a circle. He was lost.

　　Two days later he had drunk all his water. He couldn't walk. He crawled to the top of a sand dune（沙丘）, and there he saw a man. The man was wearing smart, clean trousers, a white shirt and a tie. Gray crawled over to him.

　　“Water…water…”he said.

　　“I'm terribly sorry, old boy,” replied the man, “but I haven't got any water with me.”

　　“Help me!” shouted Gray, “I'm a rich man…a millionaire…I'll give you anything.”

　　“That's very nice of you, old boy,” said the man. “Look, I can't give you any water, but would you like to buy my tie?”

　　“A tie? Of course not!” screamed Gray, and crawled away. He crawled slowly up the next sand dune. His mouth was full of sand. His lips were cracked（破裂）and dry. He couldn't breathe. He reached the top of the dune and there he saw a huge good hotel. Girls were swimming in the large swimming pool. Beautiful fountains were all around the hotel.

　　“Is it a mirage?” he thought. “Am I dying?” He stood up and staggered（蹒跚）down the dune.

　　A waiter in shining white uniform came out of the door.

　　“Water…water…a bath! Food!” screamed Gray.

　　“I'm sorry, you can't come into this hotel,” said the waiter.

　　“Why not? I've got plenty of money… I'm a millionaire.”

　　“Ah,” replied the waiter, “but you aren't wearing a tie !”

(1) The famous explorer ________.

[　　]

A．had crossed the Antarctic and the Atlantic by balloon

B．had traveled all over the world

C．had walked across Death Valley

D．had ever been a millionaire

(2) Death Valley is _________.

[　　]

A．a valley where people may die from loss of water

B．a dead place where people dare not go

C．a terribly hot valley where people may die of heat

D．a place's name

(3) Gray saw __________ from the top of the next dune.

[　　]

A．a large good hotel

B．many swimming girls

C．a lot of drinking water

D．a beautiful mirage

(4) At last Richard Gray ________.

[　　]

A．got some water to drink

B．was not permitted to enter the hotel

C．was very sorry for the waiter

D．was dying

Though he ______ for many years, we still think that his death is ______ than Mount Tai. 

[　　]

A．has died...weightier

B．has been dead...weightier

C．has died...heavier

D．has been dead...heavier

　　For over 350 years men have used telescopes to find out more about the stars and planets. Our knowledge of the stars has increased very greatly since Galileo, the famous Italian scientist, made the first telescope in 1609. Men have used telescopes to study the moon's surface-- its craters（环形山）, mountains and plains. Now men have recently built bigger and more powerful telescopes. They have discovered new groups of stars. Modern telescopes have shown us that certain stars are not single at all; they are groups of millions of stars.

　　The largest telescope in the world has a mirror which is 200 inches wide. It is at Mount Palomar in America and it has shown us millions of new stars. The light from these stars has taken a million years to reach the earth.

(1) It is ________ years since Galileo made the first telescope.

[　　]

(2) With the help of telescopes, scientists can ________.

[　　]

A．discover more stars and planets

B．get knowledge from the sky

C．study the craters, mountains and plains on the moon's surface

D．increase more knowledge of the earth

(3) Through telescopes men have discovered that ________

[　　]

A．many more new groups of millions of stars remain unknown to us

B．stars are not in a single group

C．bigger and more powerful telescopes have been built recently

D．certain stars are not single but in millions of groups

(4) The largest telescope in the world ________.

[　　]

A．has recently been built in America

B．is 200 inches wide

C．has shown millions of new stars to us

D．is the most powerful one at Mount Palomar in the U.S.