A

For most pregnant women, exercise is the last thing on their minds. After all, keeping slim while you’re expecting isn’t exactly the top priority— rather, it’s making sure your baby gets enough nutrients to grow. But in a small new study, researchers at the University of Auckland in New Zealand report that a mother’s regular aerobic exercise may be good for a growing fetus’ health — and may even help a baby get a healthier start in life.

The finding is a bit surprising, because exercise is known to lower the risk of insulin resistance（胰岛素抵抗），a condition eventually leading to diabetes（糖尿病）. Although insulin resistance is a detriment in healthy adults, it turns out to be helpful for proper fetal（胎儿）development. In pregnant women, this condition means nutrients get shunted to the growing baby.

The question is: could a mother’s exercise put her developing baby’s food supply at risk? Past studies looking at the effect of exercise on birth weight have been inconclusive, and none have really investigated the influence of exercise on the mother’s sensitivity to insulin. So the University of Auckland’s Dr. Paul Hoffman and his team decided to study 84 first-time mothers, who were of normal weight on average, and track any effects aerobic exercise(有氧运动) might have on their insulin sensitivity and, ultimately, on their babies’ birth weight. Researchers asked some women to exercise on a stationary bicycle for at least 40 minutes per session, up to five times each week, starting in the 20th week of pregnancy; the other women were not specifically asked to exercise. When the two groups and their babies were compared, the team found that women who bicycled regularly gave birth to babies who were on average 150g lighter than those born to the non-exercising mothers. In both groups, however, the babies were of healthy weight, and there was no difference in the mothers’ weights.

Generally speaking, babies on the lower end of the normal weight range are considered healthier and less prone to developing diabetes and obesity than heavier ones, so this was an encouraging result. Even more reassuring was that regular exercise did not seem to affect the flow of nutrients to the growing babies in the womb.

41. According to the new study, a pregnant woman’s regular exercise may _______.

  A. bring benefits to a baby’s growth

  B. lower the risk of insulin resistance

  C. put her baby’s food supply at risk

  D. help her keep slim and healthy

42. What does the underlined word “detriment” mean in the second paragraph?

  A. Something that brings good.

  B. Something that brings damage.

  C. Something that brings obstacles.

  D. Something that brings development.

43. What is the purpose of the experiment carried out by Dr. Paul Hoffman?

  A. To investigate the influence of exercise on pregnant women.

  B. To find out what aerobic exercise can benefit a baby’s growth.

  C. To make sure of the effects exercise may have on babies’ birth weight

  D. To compare the differences between mothers who exercise and who don’t

44. Which of the following statements is true according to the passage?

  A. Lighter babies are generally believed to be healthier than heavier ones.

  B. Non­－exercising mothers will definitely give birth to heavier babies.

  C. No studies have looked at the effect of exercise on birth weight before.

  D. Some women studied were asked to exercise regularly while some don’t.

45. Which of the following may be the best title for the passage?

  A. All mothers should take aerobic exercise.

  B. Moms who exercise give birth to lighter babies。

  C. Exercise reduces the risk of insulin resistance.

  D. Heavier babies are more likely to develop diabetes.

The average person learns most of the 30,000-40,000 words whose meaning he or she recognizes by learning or reading them in context or simply absorbing them without conscious effort. The best way to a good vocabulary, therefore, is to read a great deal and to participate(参加) in a lot of good talks. There are relatively few words that we learn permanently(永久地) by purposefully referring to dictionaries or keeping words list. However, even those extra few are of value, and no one will make a mistake by working on developing a large vocabulary. Here are some suggestions of how to do that.

Read plenty of good books. When you come across a new word, or a new meaning of an old word, stop and see if you can understand it from its context. If you do not, and if you can manage it without interrupting the thought of the book too much, look it up in a dictionary or ask somebody and then repeat its meaning to yourself a couple of times. If you are really conscientious(认真的), write the word and its meaning in a personal vocabulary list-preferably using it in a sentence. Go over the list from time to time. Further, try to use a new word in writing or conversation a few times over the next several days.

Listen to good talks and be alert(留心) to new words you hear or to new meanings of words you have already known. Then treat them just as you do with new words you read. Pay attention to parts of words, prefixes(前缀), suffixes(后缀), and roots. Knowing them enables you to make intelligent guesses about the meanings of words. If you are studying a foreign language, be alert for words in that language which relate to words in English. English has inherited or borrowed much of its vocabulary of 5,000,000-6,000,000 words from Latin, Greek, French, and German.

1. The passage is most probably written for _________ .

A. children B. the old C. people with poor vocabulary D. the common reader

2. English has borrowed much of its vocabulary of 5, 000,000-6, 000, 000 words from other languages except ______ according to the passage.

A. Latin B. Greek C. Tibetan D. French

3. According to the passage, which of the following statements is NOT true?

A. We learn much of our vocabulary without conscious effort.

B. Keeping a vocabulary list is a good way to enlarge one's vocabulary.

C. Listening to people talking is of little help to one's vocabulary building.

D. All the suggestions given also apply to foreign language study.

4. The best title for the passage would be _________ .

A. Vocabulary Building B. Language Study C. Conscious Reading D. Attentive Reading

While waiting to pick up a friend at the airport in Portland, Oregon, I had an experience which occurred merely two feet away from me.
Trying to locate my friend among the passengers coming through the jet way, I noticed a man walking toward me carrying two light bags. He stopped right next to me to greet his family.
First he kissed his three children one by one and said, “It’s nice to see you. I missed you so much!” Then he hugged his wife, “I’ve saved the best for last!” giving her the longest, most passionate kiss I ever remember seeing. They stared at each other’s eyes, smiling at one another, while holding both hands. For an instant they reminded me of newlyweds（新婚夫妇）, but I knew by the age of their kids that they couldn’t possibly be.
Full of admiration, I asked, “Wow! How long have you two been married?” “Being together for fourteen years total, married twelve of those.” He replied, without breaking his gaze from his lovely wife’s face. “Well, then, how long have you been away?” I asked. “Two whole days!” “Two days?” I was astonished. By the intensity (热烈) of the greeting, I had assumed he’d been gone for at least several weeks --- if not months. I knew my expression betrayed me, so I turned away my eyes and said quietly, “I hope my marriage is still that passionate after so long!”
The man suddenly stopped smiling and looked me straight in the eye. With forcefulness he told me something that left me a different person. “Don’t hope, friend…decide!” Then he smiled again, shook my hand and said, “God bless!”
With that, he and his family turned and walked away together.
I was still watching that man and his special family walk just out of sight when my friend came up to me and asked, “What are you looking at?” Without hesitation, and with a curious sense of certainty, I replied, “My future!”
77. The best title of the passage may be __________.   
A. Long Loving Hugs                                 B. My Future
C. Don’t Hope. Decide                               D. Love Is Everywhere
78. Which of the following statements is TRUE according to the passage?
A. The man replied to the author, with his eyes still fixed on his wife’s face.
B. After being away for several weeks, the man missed his family very much.
C. It was fourteen years since the couple had got married.
D. Their three kids reminded the author of newlyweds.
79. By saying “my expression betrayed me” (in Paragraph 4), the author means that __________.
A. he failed to express his ideas to the man
B. the man sensed his real feelings from his expression
C. he didn’t believe in his expression any more
D. his expression was not faithful to him
80. From the passage, we can infer that __________.
A. the experience may be easily forgotten by the author
B. the author will live a passionate life from now on
C. the author will be away from his family and hug them passionately upon his return
D. Americans prefer to save the best for last     

While waiting to pick up a friend at the airport in Portland, Oregon, I had an experience which occurred merely two feet away from me.
Trying to locate my friend among the passengers coming through the jet way, I noticed a man walking toward me carrying two light bags. He stopped right next to me to greet his family.
First he kissed his three children one by one and said, “It’s nice to see you. I missed you so much!” Then he hugged his wife, “I’ve saved the best for last!” giving her the longest, most passionate kiss I ever remember seeing. They stared at each other’s eyes, smiling at one another, while holding both hands. For an instant they reminded me of newlyweds（新婚夫妇）, but I knew by the age of their kids that they couldn’t possibly be.
Full of admiration, I asked, “Wow! How long have you two been married?” “Being together for fourteen years total, married twelve of those.” He replied, without breaking his gaze from his lovely wife’s face. “Well, then, how long have you been away?” I asked. “Two whole days!” “Two days?” I was astonished. By the intensity (热烈) of the greeting, I had assumed he’d been gone for at least several weeks --- if not months. I knew my expression betrayed me, so I turned away my eyes and said quietly, “I hope my marriage is still that passionate after so long!”
The man suddenly stopped smiling and looked me straight in the eye. With forcefulness he told me something that left me a different person. “Don’t hope, friend…decide!” Then he smiled again, shook my hand and said, “God bless!”
With that, he and his family turned and walked away together.
I was still watching that man and his special family walk just out of sight when my friend came up to me and asked, “What are you looking at?” Without hesitation, and with a curious sense of certainty, I replied, “My future!”
【小题1】
The best title of the passage may be _______.   

While waiting to pick up a friend at the airport in Portland, Oregon, I had an experience which occurred merely two feet away from me.

Trying to locate my friend among the passengers coming through the jet way, I noticed a man walking toward me carrying two light bags. He stopped right next to me to greet his family.

First he kissed his three children one by one and said, “It’s nice to see you. I missed you so much!” Then he hugged his wife, “I’ve saved the best for last!” giving her the longest, most passionate kiss I ever remember seeing. They stared at each other’s eyes, smiling at one another, while holding both hands. For an instant they reminded me of newlyweds, but I knew by the age of their kids that they couldn’t possibly be.

Full of admiration, I asked, “Wow! How long have you two been married?” “Being together for fourteen years total, married twelve of those.” He replied, without breaking his gaze from his lovely wife’s face. “Well, then, how long have you been away?” I asked. “Two whole days!” “Two days?” I was astonished. By the intensity （热烈） of the greeting, I had assumed he’d been gone for at least several weeks — if not months. I knew my expression betrayed me, so I turned away my eyes and said quietly, “I hope my marriage is still that passionate after so long!”

The man suddenly stopped smiling and looked at me straight in the eye. With forcefulness he told me something that left me a different person. ″Don’t hope, friend…decide!″ Then he smiled again, shook my hand and said, ″God bless!″ With that, he and his family turned and walked away together.

I was still watching that man and his special family walk just out of sight when my friend came up to me and asked, “What are you looking at?” Without hesitation, and with a curious sense of certainty, I replied, “My future!”

68．The best title of the passage may be __________.  

    A．Long Loving Hugs                        B．My Future

    C．Don’t Hope, Decide                      D．Love Is Everywhere

69．Which of the following statements is TRUE according to the passage?

         A．The man replied to the author, with his eyes still fixed on his wife’s face.

         B．After being away for several weeks, the man missed his family very much.

         C．It was fourteen years since the couple had got married.

         D．Their three kids reminded the author of newly-weds．

70．By saying ″my expression betrayed me″ （in Paragraph 4）, the author means that __________.

         A．he failed to express his ideas to the man

    B．the man sensed his real feelings from his expression

    C．he didn’t believe in his expression any more

    D．his expression was not faithful to him

71．From the passage, we can infer that __________.

         A．the experience may be easily forgotten by the author

    B．the author will live a passionate life from now on

    C．the author will be away from his family and hug them passionately upon his return

    D．Americans prefer to save the best for last