题目内容

Good amounts of sleep every night ________ also important for your health．

[　　]

A．

B．

are

C．

was

D．

were

答案：B

练习册系列答案

相关题目

第三部分：阅读理解（共20小题，每题2分，满分40分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

We bet that on cold wintry days, many of you love to stay in your warm home and, every now and then, come out into the kitchen for a snack. Unfortunately, plenty of creepy-crawly critters (爬行生物) like to do the same thing!

Winter is the time when bugs (虫子) invade your house without an invitation. The season can be tough for such creatures. In winter the air is cold, the ground is hard and many trees have no leaves. So bugs do what they have to do to survive.

Monarch butterflies head south to warmer climates. Ants crowd in deep underground colonies and eat food they have been storing all year. Many insects go into a deep sleep called diapause. There’re different kinds of diapause, but all are similar to hibernation, a time when bigger animals become inactive in the cold. Insects go into an inactive period, too, but it often isn’t when the temperature drops.

They rely on more dependable signals in the environment. For example, many insects can tell how much sunlight there’s each day. They use that to tell them when to shut down. Bugs are cold-blooded, meaning that their inside temperature is the same as the outside. They can’t move much when it gets below 40 degrees Fahrenheit. So they search for any warm place.

They’re looking for protection. These guys have been doing this for 300 million years, so they don’t really know they’re coming into your house. The home is a recent event in terms of their evolutionary behavior. They enter through tiny cracks or come in unnoticed on your clothes or shoes. Remember that they may be invading your homes for warmth and food, but they don’t care about humans.

56. What is the purpose of the first paragraph?

A. To point out that humans like to stay at home in winter.

B. To mean that humans and bugs have the same living habits.

C. To mean that bugs will invade the house for their winter.

D. To put forward the idea that bugs are not welcome in winter.

57. According to the text, what is diapause?

A. It is the same as the animals’ hibernation.

B. It often appears in warm areas all the year.

C. It is done to keep bugs active in winter.

D. It is a deep sleep similar to hibernation.

58. What often decides bugs’ diapause?

A. The lower local temperatures. B. The amounts of sunlight.

C. Kinds of environmental signals. D. The insects’ inside temperature.

59. According to the text, bugs invade humans’ homes to ______.

A. attack humans B. look for enough food

C. seek for protection D. show their evolutionary results

60. What would be the best title for the text?

A. Bugs’ life on cold wintry days

B. Why bugs invade your home in winter?

C. Good relations between humans and bugs

D. What does diapause mean?

Stop eating yourself stupid we all know that poor nutrition can lead to bad health and even weight gain. Now add “lack of intelligence” to the growing list. A recent study has found that what you eat could very likely play a role in how smart you are.

According to the study, rats fed a high-fat diet for 10 days showed signs of weakness and even had trouble finding food that was waiting for them. 1. Actually a high-fat diet could weaken our intelligence--but so can a low-calorie diet. The trick appears to lie in finding a nice balance.

Here are ways to achieve that happy balance and make you smarter through diet, exercise and improving your brain power.

Figure out how many calories you need to maintain your weight. __2.__ If you need to drop a few pounds, take away the number you get by 400 calories; consume that number of calories each day until you drop the weight.

__3.__Aim for healthy foods that include good amounts of protein, fiber, fruits and vegetables, healthy whole grains, healthy fats and plenty of water. Well! Remember: All work and no play makes Jack a dull boy. Read a book. Try a new recipe. Do some puzzles. __4.__

Exercise regularly with a positive attitude. Aim for at least three 30-minute training sessions a week(but more is better). I like simple exercise such as walking, but anything that raises the heart rate is good. _5._ Combine them! Some people like to listen to classical music such as Bach or Mozart, but rock music lovers will be happy to learn that this kind of music can help make them smarter as well.

A．You may be fond of music, too.

B．Your health depends on your exercise plan.

C．Aim to get this number of calories each day.

D．Don’t forget to exercise your mind while doing so.

E．You may be wondering what this has to do with us.

F．These are all good ways to help increase your intelligence.

G．Eat the right foods in addition to getting the right number of calories.

Good amounts of sleep every night ________ also important for your health．

A.
is
B.
are
C.
was
D.
were

Good amounts of sleep every night__________ also important for your health.

　 A. is　　　　 B. are　　　 C. was　　　　 D. were

Good amounts of sleep every night ________ also important for your health．

试题分类