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Wild elephants that destroy crops and damage trees are a serious problem in many parts of Africa . But there could be a simple and relatively safe way to stop them in their tracks , by employing the talents of the tiny African honeybees .
The number of elephants in Kenya has risen over the past ten years , with some disastrous results . Not only do these huge animals attack local farms , but they step someone to death an average of once every two weeks . Now a biologist has discovered a possible threat : the elephants are extremely aware of trees that house honeybee hives .
“I an puzzled why nobody has thought of this before , ” says Fritz Vollrath at the University of Oxford . “ When an elephant knocks a beehive he runs and the bees will follow him or miles . ” He says that placing hives of the honeybees around local farms and fragile habitats could be an effective way to threaten the animals .
Volirath put 30 unoccupied and 6 occupied beehives in some of the growing on a bush frequently damaged by elephants on Laikipia Plateau in Kenya . On average the elephants attacked 9 out of 10 trees that didn’t have hives , severely damaging a quarter . But they steered clear of all six trees with occupied hives . The elephants also left alone one-third of the trees with empty hives , suggesting that some had learnt not to take the risk .
The bees threaten elephants by stinging vulnerable (易受伤)areas such as the eyes , belly , behind the ears and under the trunk . People could be at risk from the bees , admits Voilrath , but that may be outweighed by the risk of being killed by an elephant . Another experiment by Voilrath shows that elephants also avoid the sound of angry bees played from a loudspeaker .
1.What harm do the wild elephants in Africa do ?
A.Killing local people
B.Damaging beehives
C.Threatening animals
D.Destroying villages
2.What can we learn from the underlined sentence ?
A.They ran away from the trees with empty hives on it
B.They tried not to touch the trees with hives full of bees
C.They kept a distance from al the trees with hives on them .
D.They were clear that all the six trees were occupied by hives
3.What’s Volirath’s another experiment on this elephant’s case ?
A.Let bees attack and kill elephants one by one
B.Encourage bees to sting elephants’ eyes and ears
C.Use the bees’ sound to drive elephants away
D.Employ tiny African honeybees to threaten elephants
4.From the passage we can conclude that _______
A.there is always one thing to bet another
B.little bees can kill big and wild elephants
C.serious problems often come up in Africa
D.elephants enjoy attacking people and farms
查看习题详情和答案>>In the United States, 30 percent of the people have a “weight problem”. To many people the cause is obvious (明显的): they eat too much. But scientific evidence (证据) does little to support this idea. Going back to America of 1910, we find that people were thinner than today, yet they at
e more food. In those days people worked harder physically, walked more, used machines much less, and didn’t watch television.
Several modern studies, moreover, have shown that fatter people don’t eat more on average than thinner people. A 1979 study of 3,545 London office workers showed that fat people eat less than slim (苗条的) people.
Studies also show that slim people are more active than fat people. A study by a research group at Stanford University found the following interesting facts:
The more the man ran, the greater loss of the body fat.
The more they ran, the greater increase in food intake.
Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.
【小题1】 Nowadays many Americans have the problem that ______.
| A.they are too slim | B.they work too hard |
| C.they are too fat | D.they lose too much body fat |
| A.150. | B.300. | C.600. | D.270. |
| A.Yes, there is plenty of evidence. |
| B.Of course, there is some evidence to support this. |
| C.There is hardly any scientific evidence to support this. |
| D.We are not sure. |
| A.ate more food and had more physical activities |
| B.ate less food but had more physical activities |
| C.ate less food and had less physical activities |
| D.had more problems |
It was pouring outside. We all stood there 21 , some patiently, others annoyed 22 nature messed (弄糟)their hurried day. I got lost in the sound and sight of the heavens 23 away the dirt and dust of the world.
“Mom, let’s run through the rain,” a girl’s voice 24 me .
“No, honey. We’ll wait until it 25 down a bit,” Mom replied.
The young girl waited about another minute and 26 : “Mom, let’s run through the
rain .”
“We’ll get wet if we do,” Mom said.
“No , we won’t , Mom. That’s not what you said this morning,” the young girl said
as she 27 her Mom’s arm .
“This morning? 28 did I say we could run through the rain and not get wet?”
“Don’t you remember? When you were talking to Daddy about his cancer, you said ,” If God can get us through this , he can get us through 29 .”
The entire crowd turned 30 . Mom paused and thought for a moment about 31
she would say. Now some would laugh it off and scold her for being 32 . But then we heard,
“Honey, you are 33. Let’s run through the rain. If we get wet, maybe we just need washing,”
Mom said. Then 34 they ran.
We all stood 35 , smiling and laughing as they ran past the cars. Yes, they got wet. But they were 36 by a few who screamed and laughed like children all the 37 to their cars. Circumstances (境况)or people can take away your material possessions, and they can even take away your 38 . But no one can ever take away your precious 39 . So, don’t forget to make time and take the 40 to make memories every day! I hope you still take the time to run through the rain.
|
1.A.talking |
B.waiting |
C.complaining |
D.expecting |
|
2.A.as if |
B.even if |
C.because |
D.when |
|
3.A.taking |
B.putting |
C.driving |
D.washing |
|
4.A.caught |
B.broke |
C.impressed |
D.called |
|
5.A.slows |
B.comes |
C.pushes |
D.calms |
|
6.A.asked |
B.repeated |
C.required |
D.added |
|
7.A.pulled |
B.touched |
C.waved |
D.felt |
|
8.A.Why |
B.How |
C.When |
D.Where |
|
9.A.the rain |
B.the disease |
C.anything |
D.something |
|
10.A.still |
B.silent |
C.serious |
D.angry |
|
11.A.what |
B.how |
C.whether |
D.if |
|
12.A. dishonest |
B.silly |
C.daring |
D.forgetful |
|
13.A.right |
B.wrong |
C.stupid |
D.clever |
|
14.A.off |
B.along |
C.on |
D.over |
|
15.A.sighing |
B.joking |
C.discussing |
D.watching |
|
16.A.followed |
B.guided |
C.respected |
D.praised |
|
17.A.time |
B.way |
C.same |
D.best |
|
18.A.house |
B.money |
C.health |
D.time |
|
19.A.children |
B.memories |
C.courage |
D.experience |
|
20.A.possibilities |
B.opportunities |
C.risk |
D.challenge |
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第Ⅱ卷(非选择题,35分)
第四部分 写作(共两节,满分35分)
第一节 短文改错(共10小题;每小题1分,满分10分)
此题要求改正所给短文中的错误.对标题号的每一行做出判断:如无错误,在该行右边的横线上划(√);如有错误(每行只有一个错误),则按下列情况改正:
此行多一个词:把多余的词用斜线划掉,在该行右边横线上写出该词,并也用斜线划掉。
此行缺一个词:在缺词处加一个漏字符号(^),在该行右边横线上写出该加的词。
此行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。
注意:原行没有错的不要改。
My cousin Xiao Hong and I went on a trip to my uncle 76.________
last Sunday. We were riding along a hillside then suddenly 77.________
some big stones were rolled down and knocked us off our bikes. 78.________
Xiao Hong's legs got seriously hurt and so were mine. We 79.________
couldn't move a bit. Fortunately, I saw some farmers ahead. 80.________
Waving our hand, we cried for help like crazy. On hearing 81.________
us, they ran to the spot as fast as they can. Thanks to 82.________
their help, we were all sent to a nearby hospital and received 83.________
medical treatment in time. Although we do not know about their 84.________
names, we feel they like our dear big brothers and sisters. 85.________
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We’d been flying for hours, deeper and deeper into the desert of southeastern Niger. The mission: to find what is probably the last wild population of the great Saharan antelope called the addax (旋角羚)—the most endangered animal of its size in Africa.
Pilot Peter Ragg flew our bright red helicopter low over two parallel dunes (沙丘). The pale sand below us was dotted by the black bushes, the plants that are favorite food for the addax. Then, almost as if the dune extruded (使突出) them, two perfect addaxes appeared. Their long tails swung from side to side as they ran, heads held high on thick necks, horns reaching for the sky. We made a few turns in the plane, then let them be. In just a few seconds they were swallowed again by the Sahara. Soon they could just as easily disappear from the planet.
In September 2004 the government of Niger and a small NGO called SOS Faune du Niger surveyed this last known pocket of wild addaxes. They counted 128 individuals. Since then, the number has dropped as hunters have taken more for meat. How many addaxes remain in the Sahara is anybody’s guess, but those that do survive could be considered the living dead: There may not be a viable (能生存的) population left to reproduce.
I’m now helping to make an emergency plan for the last wild addaxes. With a few hundred thousand dollars, some trucks, and a strong group with the local Toubou guides, we may just be able to save these guys from extinction.
36. What do the addaxes in the passage usually eat?
A. Vegetables. B. Black bushes. C. Grass. D. Fruits.
37. All of the following descriptions of the addax are true EXCEPT that ____.
A. its tail is long B. its neck is thick
C. its legs are short D. its horns are long
38. What does the writer probably mean by saying that “There may not be a viable population left to reproduce”?
A. Wild addaxes will die out soon unless effective measures are taken.
B. The number of wild addaxes will increase if they are not hunted.
C. Wild addaxes cannot support themselves any longer.
D. Humans cannot survive without enough addaxes.
39. It can be inferred that the writer of the passage might be ____.
A. a journalist B. an official C. an engineer D. a zoologist
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