题目内容

  1. 1.

    Trees can get light from       in the daytime

    1. A.
      CO2
    2. B.
      O2
    3. C.
      the sun
    4. D.
      the moon
  2. 2.

    Chlorophyll is in         .

    1. A.
      sunlight
    2. B.
      soil
    3. C.
      air
    4. D.
      leaves
  3. 3.

    We can get more O?2 by         .

    1. A.
      planting more trees
    2. B.
      cutting trees down
    3. C.
      making the water in soil(土壤) polluted
    4. D.
      making more CO2
  4. 4.

    CO2 from air and      can produce food  for trees with the help of chlorophyll and sunlight

    1. A.
      water in the sea
    2. B.
      water from soil
    3. C.
      water in the river
    4. D.
      O2 into air
  5. 5.

    The picture tells us         .

    1. A.
      how trees let O2 go into air in the sunlight
    2. B.
      how trees let CO2 go into air in the sunlight
    3. C.
      the sunlight isn't important to trees at all
    4. D.
      trees can take in O2 and let out CO2
CDABA
本文通过图片来介绍植物的光合作用
1.通过①的描述可以看出答案为C
2.通过③的描述可以看出答案为D
3.通过第六个论述可以看出答案选A
4.通过第四个论述可以看出答案为B
5.纵观全文可以看出答案为A
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We talk every day. When we have good news, we like to share it with our good friends and when something terrible happens, we tell it to others soon. But can you imagine that a tree can talk and share news too ? Of course, no tree moves lips and says words just as people do. Strange as it may sound, though, some trees do manage to communicate with each other.
Willow (柳树) trees are the best-known of these trees. When insects begin nibbling (叮咬) a willow tree, the tree sends out a special smell at once. This smell tells the other willows that harmful insects are coming near. All of them quickly make a chemical (化学物质) in their leaves. This chemical is bad to the insects. The insects do not like it and they fly away soon. In this way, the willow trees protect themselves from the insects.
The next time when you take a walk in the woods, maybe the trees are “talking” to each other quietly. And when someone says that trees cannot “talk”, please tell them that even trees give messages to each other, too.
【小题1】Willow trees send messages with_____________.
A．wordsB．movementsC．smellsD．sounds
【小题2】The underlined word “lips” in the first paragraph means _____________.
A．树干B．嘴唇C．枝条D．手势
【小题3】The passage tells us that some of the trees can _____________.
A．speak just as people doB．tell stories to others
C．communicate with each otherD．kill insects in the woods
【小题4】According to the passage, the right order of the following is _____________.
a.  The willow tree gives out a smell.
b.  The willow trees make a chemical in their leaves.
c.  Insects fly away because of the chemical.
d.  Insects begin nibbling a willow tree.
A． d---a---b---cB． d---b---a---c
C． a---b---c---dD． d---c---b---a


In the 13th century, the Italian traveler, Marco polo , traveled a long way to China , During his stay in China , he saw many wonderful things . One of the things he discovered was that the Chinese used paper money . In western countries , people did not use paper money until the 15th century . However , people in China began to use paper money in the 7th century .
A Chinese man called CaiLun invented paper almost 2000 years ago. He made it from wood . He took the wood from trees and made it into paper . He then put these pieces of paper together and made them into a book .
Now paper still comes from trees . We use a lot of paper every day ! If we keep on wasting so much paper , there will not be any trees on the earth . If there are no trees , there will be no paper . Every day , people throw away about 2800 tons (吨) of paper in our city . It takes 17 trees to make one ton of paper . This means that we are cutting nearly 48000 trees every day . Since it takes more than 10 years for a tree to grow , we must start using less paper now . If we don’t , we will not have enough time to grow more trees to take the place of those we use for paper .
So how can we save paper ? We can use both sides of every piece of paper , especially when we are making notes .We can choose drinks in bottles instead of those in paper packets . We can also use cotton handkerchiefs (手帕) and not paper ones . When we go shopping , we can use fewer paper bags . If the shop assistant does give us a paper bag, we can save it and reuse it later .
Everyone can help to save paper . If we all think carefully , we can help protect trees . But we should do it now , before it is too late .
【小题1】When he was in China , Marco polo ___________ .

A．discovered CaiLun invented paper
B．learned to make paper
C．saw many wonderful things
D．told people about it
【小题2】About _______ tons of paper are thrown away every day in our city.
A．1700B．2000C．2800D．48000
【小题3】Which of the following is NOT the way of saving paper ?
A．To use both sides of every piece of paper
B．To use the paper bags from shops more than once
C．To use cotton handkerchiefs instead of paper ones
D．To grow more trees
【小题4】Which of the following is NOT TRUE ?
A．If we keep on wasting paper , we will have no paper to use
B．The Chinese used paper money much earlier than the people in western countries
C．About 48000 trees can be used to make 2800 tons of paper
D．It is never too late to plant trees for paper .
【小题5】Which is the best title (标题)of the passage ?
A．Saving PaperB．The history of Paper
C．Cotton Handkerchiefs Back AgainD．CaiLun , the Great Inventor


根据短文内容选择方框内的单词，并用其正确的形式填入空白处，使补全后的短文意思通顺，语法正确，结构完整。

I think it is easy to live a low carbon life if you want to make our life better. Here are some _____【小题1】____ of advice: Travel by bus, bike or on foot as much as possible and ask our parents to drive as little as possible.
Plant trees as many as you can. Trees can help to make the air cooler in summer. ___【小题2】____ the lights if it isn’t necessary to keep them on.
Don’t waste the water, oil, _____【小题3】___ etc. Of course, there are many __【小题4】______ things we can do in our daily life. After all, the earth is our common home. If everyone _____【小题5】____ small changes, we can make a difference.

We have always been warned of the dangers of forest fires. They cause _____ 85 _____ to a forest. They kill many plants and animals in an eco-system, which is a group of living things and their environment. But have you ever heard of a forest fire that can be _____86_____  for a forest? People start some of the fires with a special reason to actually do good to the eco-system.

In fact, fires are a natural part of any eco-system. Without fires, the oldest and largest trees would stop sunlight from reaching the forest floor. Fires can _____87_____ some of these old trees. When the trees die, they provide something good for the earth. New trees can grow strong and healthy in their place.

Some trees even need fires to grow. These trees hold their seeds (种子) inside. Heat from a fire allows the coat of the seeds to open up. Then the seeds fall to the ground and have the _____88____ to grow/

Scientist, who know about nature’s needs, start some of these fires, called controlled burns. A fire is started and kept under control. This way, the fire does not spread out of the area or _____89_____ a after forest fires, they can go hungry _____90_____ their food has been damaged in the fire. Small, controlled fires mean than animals will not have to move far to find food. After some time, small plants begin to grow. Animals return soon after the plants return. This _____91_____  makes an eco-system.

So the next time you hear about a forest fire, think about the good as well as the bad. It may take a new eco-system a while to return, but it will likely come back stronger and healthier than ever.

 

1.A) illness     B) difficulty      C) damage       D) flood

2. A) helpful    B) powerful      C) harmful       D) awful

3. A) take the place of    B)  get ready for     C)  be bad for      D) get rid of

4.A) time       B) water       C) chance       D) skill

5.A) discover    B) cover       C) but          D) waste

6. A) because    B) although      C) but         D) so

7.A) almost     B) again        C) never      D) even

 

         Forests have always been useful and important to men who make use of them in many ways. Every day trees are serving man everywhere. Trees supply man with fruits and building materials in the form of wood. Without trees it would be impossible to build houses, boats, bridges and so on. Furniture such as desks, chairs and beds is made of wood. Trees can stop man from the terrible heat. They’re also useful in preventing(阻止) good and rich top soil from being washed away during heavy rains. If there were no forests, heavy rains would wash away the rich surface(表层) soil that is so important to plants. The result is that the land will become a desert. There are plenty of desert areas in the world. A long time ago these desert areas used to be very rich areas, but men in the past had no enough knowledge about science of nature, and they cut down too many trees in the area where they lived and never planted new ones. By and by, the rich surface soil was blown and washed away by strong winds and heavy rains. In the end the rich land changed into useless deserts where nothing could grow.

根据短文内容，判断正（T）误（F）。

1.Trees are not serving man everywhere.

2.Without trees it would be possible to build houses, boats, bridges and so on.

3.Trees can stop man from the terrible heat.

4.There are few desert areas in the world.

5.In the end the rich land changed into useless deserts where nothing could grow.

 

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