例21.Birds fly with their wings, and they pick up their foods, and then eat them with their beaks and they use their claws for tearing, seizing, pulling or holding objects. 查看更多

 

題目列表(包括答案和解析)

第一節(jié) 完形填空 (共10小題;每小題2分,滿分20分)

閱讀下面短文,掌握其大意,然后從21—30各題所給的A、B、C和D項(xiàng)中,選出最佳選項(xiàng)。

Free to fly with the wind

One windy spring day, I observed young people having fun by flying their kites in the wind. Colorful creations of varying shapes and sizes filled the blue and clean skies like beautiful birds dancing. As the strong winds blew against the kites, a  16   kept them in control.

Instead of blowing away with the wind, they went up against it to achieve great  17  . They shook and pulled, but the control string and the long tail kept them under  18  , facing upward and against the wind. As the kites struggled and trem??bled against the string, they seemed to be saying,  " Let me go t Let me go! I want to be  19  !" They flew beautifully even as they fought the control of the string. Fi??nally, one of the kites  20   in breaking loose. "Free at last," it seemed to be saying, "Free to fly with the wind.”

Yet freedom from control simply put it at the   21  of an unsympathetic wind. It dropped ungracefully to the ground and landed in a wild mass of weeds. “Free at last”--- free to  22  powerlessly in the dirt, and to be blown  23  along the ground……

How we are like kites sometimes! The Heaven gives us adversities(逆境), limits and rules to ????????_ 24  from which we can grow and gain strength. Control is a necessary opponent(對手) to the winds of opposition. We can never go up high enough to achieve our goals sometimes if we lose our necessary  25  or the rules.

16    A belt     B string C wire     D wind

17    A skies   B lengths C depths  D heights

18    A charge  B repair   C condition    D control

19    A quicker       B higher  C free     D quiet

20    A ended B stuck   C failed D succeeded

21    A mercy        B top      C bottom       D expense

22    A sit       B stand   C exist    D lie

23    A patiently      B silently C helplessly    D comfortlessly

24    A escape        B follow        C break   D suffer

25    A opponent    B friend C assistant      D supporter

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第一節(jié) 完形填空 (共10小題;每小題2分,滿分20分)

閱讀下面短文,掌握其大意,然后從21—30各題所給的A、B、C和D項(xiàng)中,選出最佳選項(xiàng)。

Free to fly with the wind

One windy spring day, I observed young people having fun by flying their kites in the wind. Colorful creations of varying shapes and sizes filled the blue and clean skies like beautiful birds dancing. As the strong winds blew against the kites, a  16   kept them in control.

Instead of blowing away with the wind, they went up against it to achieve great  17  . They shook and pulled, but the control string and the long tail kept them under  18  , facing upward and against the wind. As the kites struggled and trem??bled against the string, they seemed to be saying,  " Let me go t Let me go! I want to be  19  !" They flew beautifully even as they fought the control of the string. Fi??nally, one of the kites  20   in breaking loose. "Free at last," it seemed to be saying, "Free to fly with the wind.”

Yet freedom from control simply put it at the   21  of an unsympathetic wind. It dropped ungracefully to the ground and landed in a wild mass of weeds. “Free at last”--- free to  22  powerlessly in the dirt, and to be blown  23  along the ground……

How we are like kites sometimes! The Heaven gives us adversities(逆境), limits and rules to ????????_ 24  from which we can grow and gain strength. Control is a necessary opponent(對手) to the winds of opposition. We can never go up high enough to achieve our goals sometimes if we lose our necessary  25  or the rules.

16    A belt     B string C wire     D wind

17    A skies   B lengths C depths  D heights

18    A charge  B repair   C condition    D control

19    A quicker       B higher  C free     D quiet

20    A ended B stuck   C failed D succeeded

21    A mercy        B top      C bottom       D expense

22    A sit       B stand   C exist    D lie

23    A patiently      B silently C helplessly    D comfortlessly

24    A escape        B follow        C break   D suffer

25    A opponent    B friend C assistant      D supporter

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   As they migrate(遷移) , 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.
【小題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.
【小題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
【小題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
【小題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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  As they migrate(遷移) , 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.

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.

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

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

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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At night, bats fly through the air, catching hundreds of insects and other small animals. But during the day, they hardly move at all. Instead, bats pass the time hanging upside down from a secret spot.

There are a couple of reasons why bats rest this way. First of all, it puts them in a position for takeoff. Unlike birds, bats can’t fly into the air from the ground. Their wings don’t produce enough lift to take off from a dead stop, and their hind legs are so small and underdeveloped that they can’t run to build up the necessary takeoff speed. Instead, they use their front claws to climb to a high spot, and then fall into flight.

During the hours when most enemies are active, bats gather where few animals would think to look and most can’t reach. This allows them to disappear from the world until night comes again. There’s also little competition for these resting spots, as other flying animals don’t have the ability to hang upside down.

Bats have a unique physiological adaptation that lets them hang around this way without using any energy. For you to hold your fist around an object tight, you contract(緊縮)several muscles in your arm, which are connected to your fingers by tendons(腱);as one muscle contracts, it pulls a tendon, which pulls one of your fingers closed. A bat’s talons(爪)close in the same way, except that their tendons are connected only to the upper body, not to a muscle. To hang upside down, a bat pulls its claws open with other muscles. To get the talons to take hold of the surface, the bat simply lets its body relax. The weight of the upper body pulls down on the tendons connected to the talons, causing them to hold tight. Therefore, the bat doesn’t have to do anything to hang upside down.

1.Bats hang upside down because________.

A. they haven’t developed a pair of strong claws   B. they can’t start to fly from the ground directly

C. they have no hind legs to support their body    D. they can’t find quiet places to stay during the day

2.The third paragraph tells us that bats’ hanging upside down_______.

A. is to save their energy for night movement      B. is a way to fight against flying animals

C. is a great way to hide from danger             D. is a skill to compete for the flying places

3.Why can bats hang upside down easily?

A. Because their upper body is light.

B. Because they have strong muscles.

C. Because their talons are linked to muscles tightly.

D. Because their tendons are linked to their upper body.

4. What is the passage mainly about?

A. The living habits of bats.             B. How and why bats hang upside down.

C. The importance of bats’ hanging upside down.    D. How bats use their energy at night.

 

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