题目内容

A new study finds that plants communicate with one another to warn of danger.
We often consider plants as the furniture of the natural world. They don’t move; they don’t make sounds, they don’t seem to act on anything. But as is often the case, plants talk to each other all the time. And the language is chemical.
Over the years, scientists have reported that different types of plants, from trees to tomatoes, give out chemicals into the air to help neighboring plants. These chemical warnings can spread information about one plant’s disease or infestation(虫害), so other plants can protect themselves. But how plants receive and act on many of the information exactly is still mysterious.
In this week’s Science Magazine, researchers in Japan offered some explanations. They have found out one chemical message and traced it all the way from beginning to end.
The scientists looked at tomato plants infested by a common pest(害虫). To start out, they grew plants in two separate plastic spaces connected by a tube(管子). One plant was infested and placed upwind and the other was uninfested and placed downwind. The downwind plants were later exposed(暴露) to the pest. The results showed that plants near sick neighbors before were able to protect themselves better against the pest.
They found one chemical appeared more often in the exposed plants. The chemical is called HexVic. The scientists discovered where HexVic come from, and put it over healthy plants. Those plants were then able to produce HexVic. Researchers made sure that uninfested plants could fight off bugs and diseases. How do they know when to protect themselves? They are warned first by their friendly plant neighbors.
It is not a simple story, and it may be happening in more plant species than tomatoes. It may also be happening with more chemical signals that are still unknown to us. In a word, we know that plants not only communicate, but also look out for one another.
小题1:The underlined “traced” in the fourth paragraph probably means _________ here.
A.reportedB.followed
C.doubtedD.developed
小题2:For scientists, which are the right steps to watch tomato plants infested by a pest?
①  Place the infested plant upwind.
②  Place the uninfested plant downwind.
③  Expose the downwind plants to the pest.
④  Grow plants in two separate plastic spaces connected by a tube.
A.③①②④B.①④③②
C.④①②③D.④②①③
小题3:You can put the sentence “The researches also studied leaves from exposed plants and unexposed plants.” At the beginning of
A.Paragraph 3B.Paragraph 4
C.Paragraph 5D.Paragraph 6
小题4:Which of the following can be the best title of this passage?
A.Communicating Plants and Terrible Diseases
B.Talking Plants and Friendly Warnings
C.Protecting Plants and Clear Information
D.Growing Plants and Mysterious Chemicals

小题1:B
小题2:C
小题3:D
小题4:B

试题分析:本文叙述了一项新的研究发现植株之间交流是危险的警告。植株之间的交流就是一种化学物质。科学家观察了害虫在植株上滋生的过程,发现在被害虫感染的植株上有一种化学物质HexVic.这种物质放在健康的植株上,也会产生这些物质。因此要确保植株健康,首先要有友好的邻居。总之,植株之间不仅交流,而且要互相小心。
小题1:词义猜测题。根据 all the way from beginning to end.可知此处从头到尾一直在跟踪,故选B。
小题2:细节理解题。根据To start out, they grew plants in two separate plastic spaces connected by a tube(管子). One plant was infested and placed upwind and the other was uninfested and placed downwind. The downwind plants were later exposed(暴露) to the pest.可知科学家观察害虫在植株上滋生的步骤为:首先他们在两个由管子连接独立的塑料空间种上植株,一棵植株被感染上害虫,放在迎风的地方,另一棵植株没有被感染,被放在顺风的地方。不久顺风地方的植株也暴露在害虫面前。故选C。
小题3:推理判断题。根据They found one chemical appeared more often in the exposed plants. 可知他们在被暴露的植株上发现了一种化学物质,故在此之前应是科学家把被暴露的植株和没被暴露的植株进行比较,才会发现他们之间的差别。因此这句话应出现在第6段。故选D。
小题4:标题归纳题。根据A new study finds that plants communicate with one another to warn of danger. 可知本文是围绕着对植物之间互相交流带来的危险警告。故选B。
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小题1:
A.grow upB.give upC.set upD.pick up
小题2:
A.intoB.withinC.out ofD.away from
小题3:
A.firstB.secondC.thirdD.fourth
小题4:
A.looked forB.searched forC.waited forD.called for
小题5:
A.thatB.whatC.whereD.why
小题6:
A.onB.overC.offD.in
小题7:
A.itB.itsC.themD.themselves
小题8:
A.eggsB.carrotsC.coffeeD.water
小题9:
A.hearB.tasteC.smellD.see
小题10:
A.closeB.openC.washD.drop
小题11:
A.keepB.protectC.breakD.drink
小题12:
A.complainedB.explainedC.toldD.expected
小题13:
A.everyB.allC.eachD.either
小题14:
A.beforeB.afterC.behindD.under
小题15:
A.lies inB.comes acrossC.meets withD.knocks at
A man was walking through a forest. He was holding an axe(斧子)in his hand. A little tree stopped him and said, “Please use your axe to      those tall trees, my friend. Because of them, the sunlight cannot fall on me, and I have no room, at all to spread myself.     them, I’ll be the pride of this part of the forest these years.”
The man decided to help the little tree. He used his      to cut down the trees. Then the little tree had enough room. The little tree felt happy and said      to the man. When the sun came out, the little tree lost water and it became very      . Later when a storm came, the little tree      all its leaves and branches(树枝).
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After hearing the words of the bird, the little tree felt regretful(后悔的).
小题1:
A.put downB.cut downC.put offD.set off
小题2:
A.WithB.WithoutC.Because ofD.As for
小题3:
A.knifeB.handC.axeD.rope
小题4:
A.sorryB.thanksC.noD.hello
小题5:
A.thirstyB.hungryC.happyD.Sad
小题6:
A.lovedB.lostC.caughtD.threw
小题7:
A.grassB.plantsC.treesD.forests
小题8:
A.althoughB.whileC.ifD.so that
小题9:
A.grown upB.got upC.used upD.stayed up
小题10:
A.weakB.lowC.shortD.Strong
Body language is quiet, secret and most powerful language of all. It speaks louder than words.
According to specialists, our bodies send out more messages than we realize. In fact, non-verbal(非语言) communication takes up about fifty percent of what we usually mean. And body language is especially important, when we try to communicate across cultures.
Indeed, what is called body language is so much a part of us that it’s actually often unnoticed. And misunderstandings happen as a result of it. For example, different cultures treat the distance between people differently. Northern Europeans usually do not like having bodily contact(接触),even with friends. And certainly not with strangers. People from the Latin American countries, on the other hand, touch each other quite a lot. So it’s possible that in conversation it may look like a Latino is following a Norwegian (挪威人)all over the room. The Latino, trying to express friendship, will keep moving closer. The Norwegian, very probably seeing this as rude behavior, will keep backing away, which the Latino will in return regarded as coldness.
Obviously, a great deal is going on when people talk. And only a part of it is in the words themselves. And when parties are from different cultures, there’s a strong possibility of misunderstanding. But whatever the situation is, the best advice is to obey the golden rule: Treat others as you would like to be treated.
小题1:You may find the passage in _____.
A, a science magazine  B. a guide book 
C. a sports newspaper  D. a story book
小题2:The underlined word this in paragraph 3 refers to ___.
A.the Norwegian keeps moving closer
B.the Latino follows the Norwegian
C.the Norwegian keeps backing away
D.the Latino’s way of expressing friendship
小题3:Misunderstanding of body languages always happens because of the ___.
A.languagesB.friends
C.cultures D.countries
小题4:Which of the following is true?
A.people around the world have the same body languages
B.body language takes up about 50% of our communication
C.body language is the most important in our communication
D.body language is important when trying to communicate across cultures
小题5:If a foreign friend gives a hug to you, you should___.
A.shake hands with himB.give him a hug
C.refuse himD.kiss him
If you’ve tried studying when you’re tired, you know that it can seem very impossible to do well.
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During the migration(迁徙)season, the sparrows were restless at night and got much less sleep than usual. Even so, they were able to understand how to get the food quickly as if they’d had a regular night of sleep. Outside the migration season, they found the sparrows that got less sleep than usual had much more difficulty learning how to get the food treats than birds that had a regular sleep.
The results show that the sparrows can deal with much less sleep during the migration season than usual. If scientists can find out why, they may learn from sparrows and find ways of helping people deal with getting much less sleep. Until scientists fully understand the relationship between sleep and learning, it’s better to get plenty of sleep when preparing for an exam.
小题1:The passage is mainly about          .
A.sparrows’ migration.
B.sleep lessons from Sparrows.
C.how to get less sleep while studying
D.how sparrows that got less sleep get food treats
小题2:Why can sparrows get much less sleep during the migration season?
A.They eat more.
B.The climate is better
C.They can get food quickly
D.Scientists still don’t know the reason.
小题3:What fact does the passage lead you to believe?
A.We should sleep as little as sparrows do.
B.We should get enough sleep before an exam.
C.When tired, we should try to focus on(聚焦) our study.
D.When tired, we should check how we can sleep less than usual.
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So if you want to have a good memory, learn from the people: practice remembering things in a way as other people do.
小题1: Someone can’t have a good memory if _     
A.his parents don't have a good memory
B.he can't read or write
C.he doesn’t use his memory
D.he doesn't use his arms or legs for some time
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A.they become weak and wont become strong until you use them again
B.they will become stronger
C.they become weak but they slowly become strong again
D.you cant use them any more
小题3: Which of the following is true?
A.Your memory works in the different way as your arms or legs.
B.Your memory, like your arms or legs, becomes weak if you do not give it enough chance
to practice.
C. Don't learn how to read or write if you want to have a better memory.
D.A good memory comes from less practice.
小题4: Few people know that it is only _     if a friend has a poor memory.
A.his grandmother's faultB.his parents fault
C.his teachers’ faultD.his own fault
小题5: The writer wants to tell us________ .
A.how to have a good memoryB.how to read and write
C.how to use our arms or legsD.how to learn from the people
According to a new survey, student safety has become a big problem. Now in many big cities of China, many schools start a new lesson: self-protection. Students like this lesson because there are no exams or boring classes. And they can learn how to save lives and know how to stop danger before it really happens.
Lin Li, a teacher from Yantai, gives young students advice on how to deal with danger.
If you are in a traffic accident
If a car hurts you, you should remember the car number. If it is a bicycle, try to call your parents before you let the rider go. This is because you don’t know how seriously you are hurt.
If it is raining hard and there is lightning Don’t stay in high places and stay away from trees. When there is a fire
Get away as fast as you can. Put wet things on your body and try to find an exit.
Do not take the lift.
If someone is drowning
If you can’t swim, don’t get into the water. Cry out for help.
Remember that danger is never as far away as you think. Take care of yourself at all times!
If you are robbed(抢劫)
Keep calm. If you cannot cry for help or run away, give the robber your money. Try to remember what the robber looks like and tell the police later.
Best title: ________小题1:__________
Danger
What to do
__小题2:____
◆ If hit by a car, you’re supposed to ____小题3:_____
◆ If hit by a bike, call your parents.
Raining with lightning
Stay at low places and keep away from trees.
Fire
Don’t take the lift and find an __小题4:___ as fast as you can.
Drowning
If you can’t swim, just shout “Help!”
Robbery
◆ Keep clam.
◆Remember the roobber’s__小题5:____and tell the police later.
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