摘要: In autumn, the ground is covered with y fallen leaves.

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   As they migrate(迁移) , butterflies and moths choose the winds they want to fly with, and they change their body positions if they start floating in the wrong direction. This new finding suggests that insects may employ some of the same methods that birds use for traveling long distances. Scientists have long thought that insects were simply at the mercy of the wind.
Fascinating as their skills of flight are, migrating behavior has been difficult to study in insects because many long distant trips happen thousands of feet above ground. Only recently have scientists developed technologies that can detect such little creatures at such great heights.
To their surprise, though, the insects weren't passive travelers on the winds. In autumn, for example, most light winds blew from the east, but the insects somehow sought out ones that carried them south and they positioned themselves to navigate directly to their wintering homes.
Even in the spring, when most winds flowed northward, the insects didn't always go with the flow. If breezes weren't blowing in the exact direction they wanted to go, the insects changed their body positions to compensate. Many migrating birds do the same thing.
The study also found, butterflies and moths actively flew within the air streams that pushed them along. By adding flight speeds to wind speeds, the scientists calculated that butterflies and moths can travel as fast as 100 kilometers an hour. The findings may have real-world applications. With climate warming, migrating insects are growing in number. Knowing how and when these pests move could help when farmers decide when to spray their crops.
【小题1】 What's the main idea of the text?

A.Windsurfing insects have real direction.
B.Wind helps insects greatly in migrating.
C.Insects migrate with the seasons.
D.Scientists have trouble in observing insects.
【小题2】Scientists originally thought that _____.
A.insects were just blown about by the wind
B.insects chose the winds they wanted to ride
C.insects always waited for their favourable winds
D.insects positioned themselves in the winds
【小题3】 It is not easy to study the migrating behavior of the insects because ______.
A.the little creatures can fly very fast
B.their flight is long and high above ground
C.the wind's direction is hard to foresee
D.they have no regular migrating courses
【小题4】 We can learn from the text that _____.
A.insects never position themselves when flying low
B.insects travel more easily in autumn
C.insects fly in the way birds do
D.insects rest a lot when the wind pushes them along

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C

  Several years ago I worked in an office, which I had a locust tree growing outside the window. It had grown into a tall tree and must have been there for a long time. The tree blocked the view and made the office seem dull, unfortunately this happened to be the room assigned to me and I was depressed by it for quite some time.

  When the first spring came, everything was green except the locust tree. Secretly, I was very happy because I had thought it had died.

  One morning when I opened the window for fresh air, I unexpectedly smelt a familiar sweet scent floating into my office but I couldn’t name it. Suddenly, I realized it was the locust tree! The tree that I thought dead was blossoming in full glory.

  From then on, I usually came to the office very early to see dew forming on the locust tree blossoms and every year was eager to see spring again.

  During summer, the green leaves provided shade protecting me from the harsh sunlight, but allowing enough light in to make it pleasant. In autumn, the leaves turned into many different colors. Its beauty touched my soul. Many times I thought to take photos but never did. Then I had to leave in a hurry. Later in life it became a great regret that I had not done so.

  Actually, many times in our lives, we think we own something, therefore we don’t cherish it. We don’t feel regretful until we lose it one day! Moreover, sometimes, we have to accept the things we don’t want and need to discover the hidden beauty to find unexpected joy!

59.The author of the passage employed a writing way ________.

A.of holding and releasing            B.that released first, then held

C.that held first, then released         D.that was not holding or releasing

60.What the author wanted to tell us is that ________.

A.not being delighted for what you have got and not feeling pity on the lost

B.think twice before you leap

C.treat everything calmly

D.cherish what you’ve owned

61.The reason the author came to the office early is ________.

A.to enjoy the dew                 B.to finish her work early

C.to do some cleaning              D.to avoid the burning sun

62.The underlined word “so” in the fifth paragraph perhaps refers to ________.

A.that I couldn’t see the tree any longer    B.that I should have taken some photos

C.that I had to leave                   D.that the tree died

 

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Autumn means different things to different people. It all depends on your personality, said British naturalist Richard Mabey. "Personality shapes your view of the season," he said. "You may see it as a fading away, a packing up(结束), or as a time of packing in another sense – the excited gathering of resources before a long journey."

If this is true, perhaps it tells us a little about, for instance, Thomas Hood, the 19th Century English poet. About November, he wrote:

No warmth, no cheerfulness, no healthful ease

No shade, no shine, no butterflies, no bees

November!

On the other hand, another English poet John Keats, already sensing he was seriously ill, was inspired by a late September day to pen one of the most famous poems in the English language, To Autumn. He wrote to a friend afterwards that there was something comforting and healing about it.

According to Richard Mabey, Keats has the biological evidence on his side. Autumn is not a time of slowing down, but a time of new beginnings and great movements of creatures. For example, just at the moment that Keats's "gathering swallows" (in To Autumn) are departing for Africa, millions of creatures are fleeing from the frozen north like Iceland, Greenland and Russia to winter along the east and south coasts of Britain. According to scientists, before falling, the leaves transfer their chlorophyll(叶绿素) and carbohydrates into the woody parts of the tree for safe-keeping over winter. What remains are the natural antioxidants(防老剂) in the leaves: the yellow and orange carotenoids(类胡萝卜素), and another protective chemical specially produced for autumn, the bright-red anthocyanin(花青素). High color is not a signal of deterioration(退化) and decline, but of detox(排毒的) ability and good health.

A century after Keats, the American poet Loren Eiseley wrote in his journal: "Suppose we saw ourselves burning like maples in a golden autumn. [And that we could] disintegrate(瓦解) like autumn leaves…dropping their substance like chlorophyll. Would not our attitude towards death be different?"

From Thomas Hood’s poem, we may infer that _______.

         A.he suffered a lot from cold November

         B.he missed the shining summer days very much

         C.he had a negative attitude towards autumn

         D.he enjoyed butterflies and bees very much

Which word can best describe Loren Eiseley’s attitude towards autumn?

         A.Optimistic.        B.Fearful.     C.Doubtful.   D.Realistic.

In autumn, leaves turn yellow before falling because ______.

         A.they can’t bear the freezing

         B.they can’t get enough water from the wood part

         C.chlorophyll and carbohydrates have been lost through leaves

         D.chlorophyll and carbohydrates have come back to the wood part

What does the underlined sentence mean?

         A.Man can never live long, just as leaves must leave the tree annually.

         B.Man is different from autumn leaves, which will come again the next spring.

         C.Man should treat death calmly, just like autumn leaves fall to the ground.

         D.Man should have a positive attitude towards death, quite different from autumn leaves.

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