4.exist A.express B.extra C.examine D.exhibition 查看更多

 

题目列表(包括答案和解析)

阅读理解。
     Why should mankind explore space? Why should money, time and effort be spent exploring and researching
something with so few apparent benefits? Why should resources be spent on space rather than on conditions
and people on Earth? These are questions that, understandably, are very often asked.
     Perhaps the best answer lies in our genetic makeup (基因构成) as human beings. What drove our ancestors
to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of
a species, the better its chance of survival. Perhaps the best reason for exploring space is this genetic tendency
to expand wherever possible.
     Nearly every successful civilization has explored, because by doing so, any dangers in surrounding areas
can be identified and prepared for. Without knowledge, we may be completely destroyed by the danger. With
knowledge, we can lessen its effects.
     Exploration also allows minerals and other potential (潜在的) resources to be found. Even if we have no
immediate need of them, they will perhaps be useful later. Resources may be more than physical possessions.
Knowledge or techniques have been acquired through exploration. The techniques may have medical applications
which can improve the length or quality of our lives. We have already benefited from other spin-offs including
improvements in earthquake prediction, in satellites for weather forecasting and in communications systems.
Even non-stick pans and mirrored sunglasses are by-products (副产品) of technological developments in the
space, the chance to save ourselves might not exist.
     While many resources are spent on what seems a small return, the exploration of space allows creative,
brave and intelligent members of our species to focus on what may serve to save us. While space may hold
many wonders and explanations of how the universe was formed or how it works, it also holds dangers. The
danger exists, but knowledge can help human being to survive. Without the ability to reach out across space,
the chance to save ourselves might not exist.
     While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us
to live on other planets. It is true that the lifestyle would be different, but human life and cultures have adapted
in the past and surely could in the future.
1. Why does the author mention the questions in Paragraph1?
A. To express his doubts.
B. To compare different ideas.
C. To introduce points for discussion.
D. To describe the conditions on Earth.
2. What is the reason for exploring space based on Paragraph2?
A. Humans are nature-born to do so.
B. Humans have the tendency to fight.
C. Humans may find new sources of food.
D. Humans don't like to stay in the same place.
3. The underlined word "spin-offs" in Paragraph 4 probably refers to _____.
A. survival chances
B. potential resources
C. unexpected benefits
D. physical possessions
4. What makes it possible for humans to live on other planets?
A. O ur genetic makeup.
B. Resources on the earth.
C. The adaptive ability of humans.
D. By-products in space exploration.
5. Which of the statements can best sum un the passage?
A. Space exploration has created was wonders.   
B. Space exploration provides the best value for money. 
C. Space exploration can benefit science and technology.
D. Space exploration may help us avoid potential problems on Earth.

查看答案和解析>>

  A train sped up through the countryside at 60 mph as a“traveller”relaxes with his newspaper. But this is no businessman taking it easy—the driver of the passenger express(快车)is doing the reading.

  A Sunday Express reader caught this Virgin employee on film as the train sped through Derbyshire on its way to Plymouth from Newcastle.

  Virgin,which has come under repeated criticism over their rail service, yesterday fired the driver after being shown the photograph. A spokesman said an inquiry(调查)was under way to make sure exactly what he was doing and why he appeared to have taken his eyes off the track ahead.

  The picture comes in the week that the public inquiry into the Southall rail disaster, which claimed seven lives, heard that the driver at the centre of that case had earlier been spotted with his feet on the control button of his cab.

  Larry Harrison,who worked for Great Western Trains,drove through two warning signals before crashing at 60 mph into a waiting train.

  The reader who took this picture was standing on a bridge outside Chesterfield early one summer’s evening. He said,“I only realized what I’d got when I had the pictures developed. I couldn’t believe it.”

  “As far as I could see,there was no one else in the cab with the drive,unless they were hiding, The person with the paper open was certainly sitting in the driver’s normal seat.”

  The photographer works on the railways and does not want to be named,but he added,“I’ve seen many drivers with their feet on the control panel but I’ve never seen them reading papers like this. There is an automatic warning system and driver’s safety device which reminds him when he passes yellow and red signals. But you should never take your eyes off the track and rely only on sounds because you could have unexpected objects on the line or suddenly have speed limits given.”

63.Who is the“traveller”mentioned in the first paragraph?

A.A train driver.       B.A businessman.

C.A passenger.         D.A newspaper reader.

64.The train ______________when the picture was taken.

A.was driving to Plymouth

B.was ready for a picture

C.had seven people on it

D.crashed into another train

65.Who took the picture of the driver of the passenger express?

A.A professional photographer.

B.A newspaper reporter.

C.Another train driver.

D.A member of the railway staff.

66.According to what we have read,we may find this passage most probably______________.

A.at a train station

B.from a news report

C.from a driver’s safety guide

D.from the police inquiry

 

查看答案和解析>>

In the past 500 years,nothing about people—their clothes,ideas,or languages has changed as much as what they eat.The original (最初的) chocolate drink was made from the seeds of cocoa tree by South American Indians.The Spanish introduced it to the rest of the world during the 1500’s.And although it was very expensive,it quickly became fashionable (时髦的).In London shops where chocolate drinks were served became important meeting places.Some still exist today.

The potato is also from the New World.Around 1,600,the Spanish brought it from Peru to Europe,where it soon was widely grown.The potato was the main food at Irish table.Thousands of Irish people starved (饿死) when the crop failed during the “Potato Famine” (马铃薯饥荒) of 1845~1846,and thousands more were forced to move to America.

There are many other foods that have traveled from South America to the Old World.But some others went in the opposite (相反的) direction.Brazil is now the world’s largest grower of coffee,and coffee is important crop in Colombia and other South American countries.But it is native to Ethiopia (埃塞俄比亚).It was first made into a drink by Arabs during the 1400’s.

According to an Arabic story,coffee was discovered when a man named Kaldi noticed that his goats were attracted to the red fruits on a coffee bush.He tried one and experienced the “wide­awake” feeling that one­third of the world’s population now starts the day with.

46.According to the passage,which of the following has changed the most in the last 500 years?

A.Food.           B.Chocolate drinks.

C.Potato.  D.Coffee.

47.“Some” in the sentence “Some still exist today” refers to______.

A.cocoa trees                                         B.chocolate

C.shops                                                 D.meeting places

48.Thousands of Irish people starved because________.

A.they depended on the potato

B.they were forced to move to America

C.the weather conditions in Ireland were not fit for growing the potato

D.the potato harvest was bad

49.Coffee originally came from________.

A.Brazil                                                 B.Colombia

C.Ethiopia                                              D.Arabia

50.The writer used an Arabic story to prove that________.

A.coffee was first discovered by Kaldi

B.coffee was first discovered by Kaldi’s goats

C.coffee was first discovered in south American countries

D.coffee drinks were first made by Arabs

查看答案和解析>>

“Soon, you’re going to have to move out!” cried my neighbor upon seeing the largest tomato plant known to mankind, or at least known in my neighborhood.

One tiny 9-inch plant, bought for $1.25 in the spring, has already taken over much of my rose bed, covering much of other plants, and is well on its way to the front door.

Roses require a good deal of care, and if it weren’t for the pleasure they give, it wouldn’t be worth the work. As it is, I have a garden full of sweet-smelling roses for most of the year. Bushes must be pruned(剪枝) in early spring, leaving ugly woody branches until the new growth appears a few weeks later. It was the space available in the garden that led me into planting just one little tomato plant. A big mistake.

Soil conditions made just perfect for roses turn out to be even more perfect for tomatoes. The daily watering coupled with full sun and regular fertilizing (施肥) have turned the little plant into a tall bush. The cage I placed around it as the plant grew has long disappeared under the thick leaves.

Now the task I face in harvesting the fruit is twofold; First, I have to find the red ones among the leaves, which means I almost have to stand on my head, and once found I have to reach down and under, pick the tomatoes and withdraw(缩回) my full fist without dropping the prize so dearly won. I found two full-blown white roses completely hidden as I picked tomatoes in June. But they were weak and the leaves already yellow for lack of light.

Here I am faced with a painful small decision: To tear up a wonderful and productive tomato plant that offers up between ten and twenty ripe sweet tomatoes each day or say goodbye to several expensive and treasured roses. Like Scarlett in Gone With the Wind, I’ll think about that tomorrow.

1.What are the requirements for the healthy growth of rose?

A.Frequent pruning and fertilizing.          B.A lot of care and the right soil.

C.Tomato plants grown alongside.           D.Cages placed around the roots.

2.The writer planted the tomato because _________.

A.there was room for it in the garden

B.the soil was just right for it

C.it cost only $1.25

D.the roses’ branches needed to be covered

3.This year the writer’s roses were __________.

A.removed from the rose bed

B.largely hidden under the tomato plant

C.mostly damaged by too much sunlight

D.picked along with the tomatoes

4.By saying “the prize so dearly won” in paragraph 5, the writer wants to ________.

A.express her liking for the roses

B.show the hardship of growing the roses

C.show the difficulty in picking the tomatoes

D.express her care for the tomatoes

5.In the situation described in the text, one good thing is that ________.

A.the writer has a daily harvest of tomatoes

B.the roses cost the writer little money

C.someone will help the writer make the decision

D.the writer can now enjoy both the roses and tomatoes

 

查看答案和解析>>


  A train sped up through the countryside at 60 mph as a“traveller”relaxes with his newspaper. But this is no businessman taking it easy—the driver of the passenger express(快车)is doing the reading.
  A Sunday Express reader caught this Virgin employee on film as the train sped through Derbyshire on its way to Plymouth from Newcastle.
  Virgin,which has come under repeated criticism over their rail service, yesterday fired the driver after being shown the photograph. A spokesman said an inquiry(调查)was under way to make sure exactly what he was doing and why he appeared to have taken his eyes off the track ahead.
  The picture comes in the week that the public inquiry into the Southall rail disaster, which claimed seven lives, heard that the driver at the centre of that case had earlier been spotted with his feet on the control button of his cab.
  Larry Harrison,who worked for Great Western Trains,drove through two warning signals before crashing at 60 mph into a waiting train.
  The reader who took this picture was standing on a bridge outside Chesterfield early one summer’s evening. He said,“I only realized what I’d got when I had the pictures developed. I couldn’t believe it.”
  “As far as I could see,there was no one else in the cab with the drive,unless they were hiding, The person with the paper open was certainly sitting in the driver’s normal seat.”
  The photographer works on the railways and does not want to be named,but he added,“I’ve seen many drivers with their feet on the control panel but I’ve never seen them reading papers like this. There is an automatic warning system and driver’s safety device which reminds him when he passes yellow and red signals. But you should never take your eyes off the track and rely only on sounds because you could have unexpected objects on the line or suddenly have speed limits given.”
63.Who is the“traveller”mentioned in the first paragraph?
A.A train driver.       B.A businessman.
C.A passenger.         D.A newspaper reader.
64.The train ______________when the picture was taken.
A.was driving to Plymouth
B.was ready for a picture
C.had seven people on it
D.crashed into another train
65.Who took the picture of the driver of the passenger express?
A.A professional photographer.
B.A newspaper reporter.
C.Another train driver.
D.A member of the railway staff.
66.According to what we have read,we may find this passage most probably______________.
A.at a train station
B.from a news report
C.from a driver’s safety guide
D.from the police inquiry

查看答案和解析>>


同步练习册答案