题目内容

If the population of the Earth keeps on 1. (increase) at its present rate, there will 2. (eventual) not be enough resources left to support life on the planet. By the middle of the 21st century, if present trends continue, we 3. (use) up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on Earth will make it 4. (necessity) for us to look for open space somewhere else. But 5. of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, 6. , has recently been suggested by an American scientist, Professor Carl Sagan. Sagan believes that 7. the Earth’s resources are completely 8. (exhaust), it will be possible to change the atmosphere of Venus and 9. create a new world almost as large as the Earth itself. The difficulty is that Venus is much hotter than the Earth. 10. , there is only a tiny amount of water there.

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阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

When I entered the classroom, our teacher announced we were going to have a math test. I took a look at the full of what looked like hieroglyphs(象形文字) to me and began to . I did the best that I could, and then left my to put my paper in a pile on the front desk with a(n) .

I returned to my seat and then an idea came to mind. I where the teacher was before I made my . She was walking in the of the room with her back turned. I left my seat and went back to the pile of test papers already handed and when I picked up my paper I also the paper right below it before returning to my seat. When I looked at the paper I had taken, I discovered it was the work of the girl in our class. I copied her answers to my paper.

The next day the teacher handed back our papers turning them facedown on everyone’s desk. When I my paper over, I was to see an “F” on it. After class I went to the girl whose answers I had and said to her, “That math test was difficult. I it. I guess we need to study more.” Her was, “Not me, I got every question and got an A”.

The teacher knew. She never embarrassed me in front of the class and me to keep my dignity(尊严). I made a to myself never ever to cheat again. I would remember to always be in the things I do. I never forgot that teacher who failed me when, really, I had failed myself.

1.A.blackboard B.paper C.book D.picture

2.A.think B.cry C.worry D.sleep

3.A.seat B.classroom C.partner D.teacher

4.A.joy B.sign C.idea D.problem

5.A.believed B.found C.ignored D.checked

6.A.choice B.mind C.move D.comment

7.A.front B.middle C.back D.outside

8.A.out B.in C.over D.on

9.A.saw B.brought C.remembered D.included

10.A.extra B.new C.clean D.difficult

11.A.tallest B.oldest C.prettiest D.smartest

12.A.got B.turned C.put D.took

13.A.shocked B.angry C.happy D.excited

14.A.copied B.read C.marked D.examined

15.A.knew B.made C.failed D.lost

16.A.reply B.attitude C.opinion D.purpose

17.A.ready B.right C.done D.good

18.A.told B.reminded C.allowed D.advised

19.A.speech B.joke C.wish D.promise

20.A.honest B.friendly C.careful D.hopeful

Windbreaks are barriers(屏障)formed by trees and other plants.Farmers plant these barriers around their fields,which help prevent the loss of soil,and stop the wind from blowing soil away.They also keep the wind from damaging or destroying crops.Besides,extra trees and plants can be cut down and used or sold for wood.

Windbreaks can be highly valuable for protecting grain crops.For example,in parts of West Africa grain harvests were as much as twenty percent higher in fields protected by windbreaks compared with fields without them.

But here is something interesting about windbreaks.They seem to work best when they allow some wind to pass through the barrier of trees or plants around a field.If not,then the movement of air close to the ground will lift the soil.Then the soil will be blown away.For this reason,a windbreak works best if it contains only 60 to 80 percent of the trees and plants that would be needed to make a solid line.An easy rule to remember is that windbreaks can protect areas up to 10 times the height of the tallest trees in the windbreak.

There should be at least two lines in each windbreak.One line should be large trees.The second line,right next to it,can be shorter trees or other plants with leaves.Locally grown trees and plants are considered the best choices for windbreaks.Trees reduce the damaging effects of wind and rain.Their roots help protect soil from being washed away.And trees can provide animals outdoors with shade from the sun.

1.The advantages of building a windbreak are as follows except _____.

A. providing humans with shade from the sun

B. increasing the production of grain harvests

C. keeping the wind from destroying grain crops

D. reducing the damaging effects of wind and rain

2.The author thinks windbreaks are interesting because ______.

A. windbreaks can stop the wind getting through

B. the movement of air lifts the soil

C. large trees are lined with short ones

D. windbreaks allow some wind to pass through

3.If the trees grow to a height of 30 feet, the areas the windbreak can protect are ______.

A. 150 square feet B. 100 square feet

C. 300 square feet D. 240 square feet

4.What can be inferred from the text?

A. The environment is going from bad to worse.

B. Windbreaks can contribute to agriculture harvests. .

C. Trees and plants from abroad are the best for windbreaks.

D. Extra trees and plants can be cut down for wood

If we are to help students develop reading skills in a foreign language, it is important to understand what is involved in the reading process itself. If we have a clear idea of how “good readers” read, either in their own or a foreign language, this will enable us to decide whether particular reading techniques are likely to help learners or not.

In considering the reading process, it is important to distinguish between two quite separate activities: reading for meaning (or “silent reading”) and reading aloud. Reading for meaning is the activity we normally engage in when we read books, newspapers, road signs, etc.; it is what you are doing as you read this text. It involves looking at sentences and understanding the message they convey, in other words “making sense” of a written text. It doesn’t normally involve saying the words we read, not even silently inside our heads; there are important reasons for this, which are outlined below.

Reading aloud is a completely different activity; its purpose is not just to understand a text but to convey the information to someone else. It is not an activity we engage in very often outside the classroom; common examples are reading out parts of a newspaper article to a friend, or reading a notice to other people who can’t see it. Obviously, reading aloud involves looking at a text, understanding it and also saying it. Because our attention is divided between reading and speaking, it is a much more difficult activity than reading silently; we often stumble and make mistakes when reading aloud in our own language, and reading aloud in a foreign language is even more difficult.

When we read for meaning, we do not need to read every letter or every word, nor even every word in each sentence. This is because, provided the text makes sense, we can guess much of what it says as we read it.

1.The passage is mainly about ____________.

A. reading skills B. silent reading

C. reading processes D. reading aloud

2.The underlined word “stumble” in Paragraph 3 means ____________.

A. step over something and fall

B. repeat something or pause for too long

C. walk with heavy movements

D. speak in a fluent and confident way

3. We can infer from the passage that the author will continue to ____________.

A. discuss in detail how to read aloud

B. introduce some more reading activities

C. tell how good readers read in their own language

D. explain why we needn’t say the words when reading for meaning

4. We can conclude that ____________.

A. reading silently is easier than reading aloud

B. to understand a sentence, you have to read all the words in it

C. silent reading involves looking at a text and saying the words silently to yourself

D. there’s no difference between reading in one’s own language and in a foreign one

They baby is just one day old and has not yet left hospital. She is quiet but alert (警觉). Twenty centimeters from her face researchers have placed a white card with two black spots on it. She stares at it carefully. A researcher removes the card and replaces it by another, this time with the spots differently spaced. As the cards change from one to the other, her gaze(凝视) starts to lose its focus — until a third, with three black spots, is presented. Her gaze returns: she looks at it for twice as long as she did at the previous card. Can she tell that the number two is different from three, just 24 hours after coming into the world?

Or do newborns simply prefer more to fewer? The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When slightly older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to three? No again. Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats than when they heard just two; likewise (同样地) when the researchers started with drumbeats and moved to spots.

1.The experiment described in Paragraph 1 is related to the baby’s__.

A. sense of hearing B. sense of sight

C. sense of touch D. sense of smell

2.Babies are sensitive to the change in______.

A. the size of cards B. the colour of pictures

C. the shape of patterns D. the number of objects

3.Why did the researchers test the babies with drumbeats?

A. To reduce the difficulty of the experiment.

B. To see how babies recognize sounds.

C. To carry their experiment further.

D. To keep the babies’ interest.

4. Where does this text probably come from?

A. Science fiction. B. Children’s literature.

C. An advertisement. D. A science report.

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