题目内容

At low tide an enormous stretch of sand ________ exposed along the coast．


  1. A.
    lies
  2. B.
    lays
  3. C.
    has been laid
  4. D.
    has been lain
A
这句句子的意思是“在退潮的时候，一整片沙滩就这样赤裸地呈现在海岸边。”lay是一个瞬间动词，不能用来表示持续的状态，所以要用持续性动词lie的一般现在时来表示一般情况下的一种状态。
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Mike McClure walked into Sarasota Bay for a little fishing on a beautiful day last April. This afternoon, the water was shallow enough at low tide that McClure could easily walk 100 yards offshore and cast (投) his line in any direction.

Near sunset, still without a fish, he decided to turn back. Rather than turn to his earlier course, he chose a more direct path toward shore, thinking the bay wouldn't get deeper along the way. Instead, he was trapped. He tried to walk in different directions, but shallower water eluded (避开) him. Finally, he decided his safest choice was to head straight for land.

"Within about five steps, the water was coming in through the top of the waders (高筒防水胶靴)," says McClure.

He felt the deadweight（重物） of the flooding waders pulling him down and knew that if he didn't get out of them, he would drown. But he failed to kick his way out of the waders. Instead, they pulled him completely below the surface.

Back onshore, Eliza Cameron, 19, Loren Niurka Mora, 20, and Caitlin Petro, 20, had been watching McClure fish as they rested on the grass after a long week of classes. They saw McClure go under and then heard him cry, "Help!"

The three friends kicked off their shoes and ran into the bay. They were all good swimmers, but all hid a fear that he might pull them down too because they'd have to dive to save him.

When they reached him, he'd managed to kick himself out of the waders, but his eyes had partly rolled back. Cameron and Mora each hooked (钩住) an arm under his shoulders, while Petro supported his back and held his hand. Then the three friends tried their best to tug (拉) him towards shore. Finally, they all returned to the shore safely.

Mike McClure didn't turn back by his earlier course because      .

     A. he wanted to choose a short course

     B. his earlier course was dangerous

     C. he just wanted to take a risk

     D. he knew where the water was deep

What directly trapped Mike McClure in the bay?

     A. His wrong decision.

     B. The coming high tide.

    C. His waders' being flooded.

    D. The depth of water.

During the rescue,      .

       A. the three women were afraid of being trapped in the water

       B. Cameron and Petro helped catch Mike McClure's arms

       C. the three women removed Mike McClure's waders

       D. Mike McClure still wore his flooding waders

What’s the main idea of this passage?

      A. Enjoy fishing on a beautiful day.

      B. Help others when they are in trouble.

      C.A terrible experience during fishing.

      D. How to rescue people when they’re drowning.

The fiddler crab (蟹) is a living clock. It shows the time of day by the colour of its skin, which is dark by day and pale by night. The crab’s changing colour follows a regular twenty—four hour plan that exactly matches the daily rhythm of the sun.
Does the crab actually keep time, or does its skin simply answer to the sun’s rays, changing colour according to the amount of light strikes it? To find out, biologists kept crabs in a dark room for two months. Even without daylight, the crab’s skin colour continued to change exactly on time.
This characteristic probably developed gradually in answer to the daily rising and setting of the sun, to help protect the crab from sunlight and enemies. After millions of years it has become completely regulated (受控制) inside the living body of the crab.
The biologists noticed that once each day the colour of the fiddler crab is especially dark, and that each day this happens fifty minutes later than on the day before. From this they discovered that each crab follows not only the rhythm of the sun but also that of the tides (潮水). The crab’s period of greatest darkening is exactly the time of low tide on the beach where it was caught!
【小题1】The fiddler crab is like a clock because it changes colour ______.
A in a regular 24—hour rhythm              B. in answer to the sun’s rays
C. at low tide                            D. every fifty minutes
【小题2】The crab’s changing colour ______.

A．tells the crab what time it isB．protects the crab from the sunlight and enemies
C．keeps the crab warmD．is of no real use
【小题3】 When the fiddler crabs were kept in the dark , they ______.
A．did not change colourB．changed colour more quickly
C．changed colour more slowlyD．changed colour on the same timetable
【小题4】The crab’s colour—changing ability was probably developed ______.
A．in the process of evolution (进化)B．over millions of years
C．by the work of biologistsD．both A and B
【小题5】The best title for this selection would be ______.
A．The Sun and the TidesB．Discoveries in Biology
C．A scientific StudyD．A Living Clock


第三部分：阅读理解（共两节，满分 40 分）
（共15小题；每小题2分，满分30分）
阅读下列短文，从每题所给的四个选项（A,B,C,D）中，选出最佳选项。
A
Mike McClure walked into Sarasota Bay for a little fishing on a beautiful day last April. This afternoon, the water was shallow enough at low tide  that McClure could easily walk 100 yards offshore and cast(投）his line in any direction.
Near sunset, still without a fish, he decided to turn back. Rather than turn to his earlier course, he chose a more direct path toward shore, thinking the bay wouldn't get deeper along the way. Instead, he was trapped. He tried to walk in different directions, but shallower water eluded(避开）him. Finally, he decided his safest choice was to head straight for land.
"Within  about five steps, the water was coming in through the top of the waders(高筒防水胶靴）," says McClure.
He felt the deadweight of the flooding waders pulling him down and knew that if he didn't get out of them, he would drown. But he failed to kick his way out of the waders. Instead, they pulled him completely below the surface.
Back onshore, Eliza Cameron, 19, Loren Niurka Mora, 20, and Caitlin Petro, 20, had been watching McClure fish as they rested on the grass after a long week of classes. They saw McClure go under and then heard him cry, "Help！”
The three friends kicked off their shoes and ran into the bay. They were all good swimmers, but all hid a fear that he might pull them down too because they'd have to dive to save him.
When they reached him, he'd managed to kick himself out the waders, but his eyes had partly rolled back. Cameron and Mora each hooked an arm under his shoulders, while Petro supported his back and held his hand. Then the three friends tried their best to tug him towards shore. Finally, they all returned to shore safely.
56.Mike McClure didn't turn back by his earlier course because _____.
A. He wanted to choose a short course
B. His earlier course was dangerous
C. He just wanted to take a risk
D. He knew where the water was deep
57.What directly trapped Mike McClure in the bay?
A. His wrong decision        B. The coming high tide
C. His waders' being flooded    D. The depth of water
58.During the rescue, ____.
A. The three women were afraid of being trapped in the water
B.Cameron and Petro helped catch  Mike McClure's arms
C. The three women removed Mike McClure's waders
D. Mike McClure still wore his flooding waders

The fiddler crab (蟹) is a living clock. It shows the time of day by the colour of its skin, which is dark by day and pale by night. The crab’s changing colour follows a regular twenty—four hour plan that exactly matches the daily rhythm of the sun.

    Does the crab actually keep time, or does its skin simply answer to the sun’s rays, changing colour according to the amount of light strikes it? To find out, biologists kept crabs in a dark room for two months. Even without daylight, the crab’s skin colour continued to change exactly on time.

    This characteristic probably developed gradually in answer to the daily rising and setting of the sun, to help protect the crab from sunlight and enemies. After millions of years it has become completely regulated (受控制) inside the living body of the crab.

    The biologists noticed that once each day the colour of the fiddler crab is especially dark, and that each day this happens fifty minutes later than on the day before. From this they discovered that each crab follows not only the rhythm of the sun but also that of the tides (潮水). The crab’s period of greatest darkening is exactly the time of low tide on the beach where it was caught!

1.The fiddler crab is like a clock because it changes colour ______.

   A in a regular 24—hour rhythm              B. in answer to the sun’s rays

   C. at low tide                             D. every fifty minutes

2.The crab’s changing colour ______.

   A. tells the crab what time it is        B. protects the crab from the sunlight and enemies

   C. keeps the crab warm              D. is of no real use

3. When the fiddler crabs were kept in the dark , they ______.

   A. did not change colour             B. changed colour more quickly

   C. changed colour more slowly        D. changed colour on the same timetable

4.The crab’s colour—changing ability was probably developed ______.

   A. in the process of evolution (进化)     B. over millions of years

   C. by the work of biologists            D. both A and B

5.The best title for this selection would be ______.

   A. The Sun and the Tides               B. Discoveries in Biology

   C. A scientific Study                   D. A Living Clock

 

 

第三部分： 阅读理解（共两节，满分 40 分）

（共15小题；每小题2分，满分30分）

     阅读下列短文，从每题所给的四个选项（A,B,C,D）中，选出最佳选项。

                            Mike McClure walked into Sarasota Bay for a little fishing on a beautiful day last April. This afternoon, the water was shallow enough at low tide  that McClure could easily walk 100 yards offshore and cast(投）his line in any direction.

     Near sunset, still without a fish, he decided to turn back. Rather than turn to his earlier course, he chose a more direct path toward shore, thinking the bay wouldn't get deeper along the way. Instead, he was trapped. He tried to walk in different directions, but shallower water eluded(避开）him. Finally, he decided his safest choice was to head straight for land.

     "Within  about five steps, the water was coming in through the top of the waders(高筒防水胶靴）," says McClure.

He felt the deadweight of the flooding waders pulling him down and knew that if he didn't get out of them, he would drown. But he failed to kick his way out of the waders. Instead, they pulled him completely below the surface.

Back onshore, Eliza Cameron, 19, Loren Niurka Mora, 20, and Caitlin Petro, 20, had been watching McClure fish as they rested on the grass after a long week of classes. They saw McClure go under and then heard him cry, "Help！”

The three friends kicked off their shoes and ran into the bay. They were all good swimmers, but all hid a fear that he might pull them down too because they'd have to dive to save him.

When they reached him, he'd managed to kick himself out the waders, but his eyes had partly rolled back. Cameron and Mora each hooked an arm under his shoulders, while Petro supported his back and held his hand. Then the three friends tried their best to tug him towards shore. Finally, they all returned to shore safely.

56.Mike McClure didn't turn back by his earlier course because _____.

   A. He wanted to choose a short course

   B. His earlier course was dangerous

   C. He just wanted to take a risk

   D. He knew where the water was deep

57.What directly trapped Mike McClure in the bay?

   A. His wrong decision         B. The coming high tide

   C. His waders' being flooded    D. The depth of water

58.During the rescue, ____.

   A. The three women were afraid of being trapped in the water

   B.Cameron and Petro helped catch  Mike McClure's arms

   C. The three women removed Mike McClure's waders

   D. Mike McClure still wore his flooding waders

 

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