—Look at the young lady in red. Is it Mrs. Lin?

—No. It_______ be her. She is wearing a white dress today.

A.can't B.mustn't C.needn't D.shouldn't

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Read the passage and fill in the blanks with proper words(在短文的空格內(nèi)填入適當?shù)脑~,使其內(nèi)容通順,每空格限填一詞,首字母已給):

On March 28 Richard’s other workmates were heading back to the main camp on the coast of Antarctica (南極洲), but Richard would have to stay and work at the base camp(探險營地). He stood o1. the small house and shook hands with the men who were leaving.

‘I don’t like leaving you here alone.’ Peter said. ‘I’ll be OK.’ Richard r2.. He was looking forward to the challenge of spending the winter at the base camp. He would record the weather. There was plenty of food and fuel (燃料) in the little house. He felt sure n3. would go wrong.

But something did go wrong. Richard burned the fuel for heat, but the fumes (有毒氣體) didn’t leave the house. Slowly he was poisoned (中毒). On May 31 he broke down. When he came to(蘇醒), he made h4.into the sleeping bag. Three days later he knew it was Sunday. The men thought of his radio message. Richard moved hard out of bed and made the call. He didn’t want the men to know how sick he was. It was too dangerous for them to come to save him.

By will-power, Richard stayed alive. He was quite weak and was hardly a5.to walk. But he tried to do the basics. He cooked food and had a simple m6.. He took notes of weather and sent radio messages. But by late June, the men guessed that something was wrong. Most of the time, Richard’s messages made no answer.

On August 11 Peter and two others reached the base camp. They hardly recognized (認出) Richard. He was very thin and looked terrible. Richard greeted them and then fell to the ground. The men arrived in time. They saved Richard. After two months of care, he felt b7.. He and his men worked together again.

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You're not the same person you were as a child. You're not even the same personyou were five years ago. We don't just mean your personality. While we'd love tostart a never-ending discussion over the “true self”,we're here to talk about thecells(細胞)in your body.

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Bones have special cells called osteoclasts(破骨細胞)whose job is to break down bone, even if itisn't broken, and send the minerals into the blood stream. This may sound frighteningly like your bonesare wearing away, but your body knows what it's doing. As osteoclasts break down bone, osteoblasts(成骨細胞)build up new bone to replace the old. By the end of each year, about 10 percent of yourentire adult skeleton will have been rebuilt through this process.

If 10 percent of your bone breaks down every year, it must take about ten years to renew 100percent of your skeleton. That would be a great guess, and it lines up nicely with the medical myth thatthe human body's cells are fully replaced every seven years, but the body is a bit more complex. That10 percent is just an average-some bone grows faster than that, and some grows slower. While someparts of your bone will turn over quickly, other parts will stick around for decades. In fact, most bonecells could live as long as 50 years.

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

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B. Our blood cells are constantly growing and replacing themselves.

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B. It is not surprising that some cells in our body are short-lived.

C. There are two types of cells in our bones: osteoclasts and osteoblasts.

D. We are not the same person we were five years ago because of personality.

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閱讀理解七選五 根據(jù)短文內(nèi)容,從短文后 選項中選出能填入空白處的最佳選項。 選項中

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