单选题According to the passage, what would happen to healthy cells within 48 hours of exposure to radio waves?A The number of healthy cells will keep declining as more and more of them die.B The number of healthy cells will initially drop before recovering r

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单选题

According to the passage, what would happen to healthy cells within 48 hours of exposure to radio waves?

The number of healthy cells will keep declining as more and more of them die.

The number of healthy cells will initially drop before recovering rapidly.

The number of healthy cells will be on steady increase throughout the process.

The scientists have not yet arrived at any conclusion on this issue.

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第1题：

According to the passage, what will happen if we hold that science is getting beyond control?

A. The development of science will hopelessly slow down.

B. Businesses will have even greater influence on science.

C. The public will lose faith in bringing about a bright future.

D. People will work more actively to put science under control.

正确答案：C

第2题：

According to the passage, cancers may take some healthy steps other than ________.

[A] stop smoking

[B] exercise regularly

[C] take non-fat diet

[D] control their weight

正确答案：C
其依据是，"Up to 70 percent of cancers might be eliminated if people also stopped smoking, exercised regularly, and controlled their weight." 要注意"other than" 表示“除了”。

第3题：

() the passage, what does the author really want to inform. us?

A、according to

B、due to

C、Based to

D、In light of

参考答案：A

第4题：

According to the passage we know ______________ .

A. Jack Scott asked Mr. Green not to fly to London

B. Mr. Green would take control of a plane by force

C. The policemen mistook what Mr. Green said

正确答案：C

第5题：

According to this passage, if the cylinder non-return valve were not leaky

A.an explosion would not be caused

B.there still would be a danger of explosion

C.oil would not deposit in the air pipe

D.pipe lines would not have to be drained

正确答案：B

第6题：

What would happen if women's wages were raised?

A. The imput of labor would be increased.

B. The unemployment rate would go up.

C. Those who have jobs would all become better off.

D. Women as a group would earn more than before.

正确答案：B

此题为细节题。文章的最后一段内可以找到句子：The result will be a surplus(过剩)of labor。如果政府干预提高女性的工资待遇，将会导致劳动力过剩，从而引起失业率上升的问题。所以选答案 B。

第7题：

听力原文： We will live in a society when cash no longer exists. Instead, "cash" would be electronic, as in bank-card systems. Notes and coins would be abandoned. Its benefits would be profound and fundamental. Theft of cash would become impossible. Bank robberies and cash-register robberies would cease to occur. Urban streets would become safe. Retail shops in once dangerous areas could operate in safety. Neighborhoods would improve.

National electronic-money system would operate as a debit-card system. Each individual's money would be held in his money-system account. A transaction would affect an instant transfer of money from his account to that of another account holder. Only cash would be supplanted by electronic money. Credit card and automatic-teller-machine system would not necessarily change, although you could no longer obtain cash at ATMs.

27. In future, what kind of form. will the money be?

28.According to the passage, why would the neighborhoods improve?

29.What make(s) it possible to divorce money from evil?

30.According to the passage, which of the following statements is false?

(27)

A．cash

B．notes and coins

C．recorded electronic funds-transfer system

D．paper gold

正确答案：C
解析：录音原文提到We will live in a society…would be electronic，as in bank-card systems．

第8题：

According to the passage, what is the most important job for a perfect mom?

________________________________________________________

正确答案：
Being a mom.

第9题：

According to the passage, what do the three people have in common?

A． Courage

B． Devotion

C． Hard work

D． Self-confidence

正确答案：

第10题：

共用题干
第二篇

Bone Marrow Transplantation

Bone marrow is the spongy tissue inside some of your bones,such as your hip and thigh bones. It contains immature cells,called stem cells.The stem cells can develop into the red blood cells that carry oxygen through your body,the white blood cells that fight infections,and the platelets that help with blood clotting.
If there is a problem with your bone marrow,a transplant can give you healthy new marrow. You could need a transplant because of a disease,such as bone marrow diseases or cancers like leukemia kemia or lymphoma.Or you might need one if a strong cancer treatment kills your healthy blood cells.
People with cancer sometimes donate bone marrow before treatment to be transplanted later. But often the new marrow comes from a donor,either a close family member or someone unrelated.
The healthy cells for a transplant can come from three sources:bone marrow;peripheral (circulating) blood that has an increased number of healthy blood-forming cells(also called peripheral blood stem cells or PBSC);umbilical cord blood that is collected after a baby is born.
If you need an allogeneic transplant,your doctor will look for a marrow donor or cord blood unit that matches your HLA tissue type.HLA stands for human leukocyte antigen,a markei your immune system uses to recognize which cells belong in your body and which do not.
Before your body can receive the healthy cells,the diseased cells must be destroyed.This is done using chemotherapy and sometimes radiation. The destruction of diseased cells is called a preparative regimen or a conditioning regimen.
On the day of transplant,the cells from the marrow donor or cord blood unit are infused intravenously(go into your body through a large vein).These healthy cells move into the spaces inside your bones where they create new marrow. They grow and make healthy new red blood cells,white blood cells,and platelets.

Before receiving healthy cells,diseased cells must_________.
A:undergo chemotherapy
B:go through radiation
C:be prepared
D:be wrecked

答案：D

解析：

细节题。第三段最后一句：通常新骨髓来源于一个捐献者，或者是血缘亲近的家人，或者是无血缘关系的陌生人。B不全面，C“器官捐献者”，也不正确。
词义推断题。第一段第二句：它包括不成熟的细胞，被称作干细胞。A是 “主要的”,B是“杰出的”,D是“重要的”，只有C是“发育不完全的”。
细节题。由第四段可以看出，A、C、D都是文章提到的，只有B"婴儿的血液”除外。
细节题。倒数第二段提到了生病的细胞一定要被破坏掉，A和B都是破坏的方式，都不全面。C意思不明，且与文义不符。D的意思是被彻底破坏掉。
推断题。A选项文章没有提及。C选项语气过于绝对，文章中没有如此说明。第三段第一句说癌症患者有时会在治疗前捐出骨髓用于日后的移植，D选项说必须，则是不正确的。从文章中可以看出，骨髓移植是很复杂的，因此B选项是可以推断出来的。

According to the passage, what would happen to healthy cells

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