Man cannot live air water. [ ] A. with, and B. without, and C. without, or D. with, or 题目和参考答案——青夏教育精英家教网—

About ten men in every hundred have the trouble of color blindness in some way. Women are luckier, only about one in two hundred is affected（感染）in this matter. Perhaps, after all ,it is safer to be driven by a woman.
There are different kinds of color blindness. For example, a man cannot see deep red. He may think that red, orange and yellow are all shades (影子) of green. Sometimes a person can’t tell the difference between blue and green. Only a few unlucky men may see everything in shades of green— a strange world indeed.
Color blindness in human beings is a different thing to explain. In only one eye there are millions of very small things called “cones（锥状细胞）” . These help us to see in the bright light and to tell differences between colors. These are also millions of “rods“（杆状细胞），but these are used for seeing when it is nearly dark. They show us shapes but not colors.
Some insects have favorite colors. Mosquitoes(蚊子) like blue but do not like yellow. A red light will not attract insects, but a blue light will. Human beings also have favorite colors. Yet we are lucky. With the help of the cones in our eyes, we can see many beautiful colors by day, and with the help of the rods we can see shapes at night.
【小题1】“Color blindness” means           in Chinese.
A. 盲目        B. 无色      C 色盲    D 讨厌颜色
【小题2】 Some people say it’s safer to be driven by women because         .

A．tell different shapes	B．kill insets
C．see in the dark	D．tell orange from yellow

【小题4】 We can attract and kill mosquitoes by using a light.

A．red

B．yellow

C．blue

D．green

【小题5】 Which of the following sentences about color blindness is TRUE?

A．None of men can see deep red.

B．Not all of men have the same problem in recognizing colors.

C．None of men can tell the difference between blue and green.

D．All of men see everything in shades of green.

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.
If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering(不开花的) plants.
Flowering plants can make seeds(种子). The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit.
Most non-flowering plants do not grow from seeds. They grow from spores(孢子). Spores are very, very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores fall on wet and shady(阴凉的) places, they usually grow into new plants.
【小题1】What fact does the passage lead you to believe?

A．Of all living things, animals are most important.

B．Spores are seeds.

C．All fruits of flowering plants have seeds.

D．Without plants, man will die out.

【小题2】The paragraph following the passage will be about ________.

A．how plants can make food from air

B．how spores grow into new plants

C．why some plants have no seeds

D．why non-flowering plants are more important than flowering plants

【小题3】This passage is most likely to be taken from ________.

A．a story book	B．a novel
C．a science magazine	D．a laboratory report

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.

If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering(不开花的) plants.

Flowering plants can make seeds(种子). The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit.

Most non-flowering plants do not grow from seeds. They grow from spores(孢子). Spores are very, very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores fall on wet and shady(阴凉的) places, they usually grow into new plants.

1.What fact does the passage lead you to believe?

A．Of all living things, animals are most important.

B．Spores are seeds.

C．All fruits of flowering plants have seeds.

D．Without plants, man will die out.

2.The paragraph following the passage will be about ________.

A．how plants can make food from air

B．how spores grow into new plants

C．why some plants have no seeds

D．why non-flowering plants are more important than flowering plants

3.This passage is most likely to be taken from ________.

A．a story book B．a novel

C．a science magazine D．a laboratory report

1

About ten men in every hundred have the trouble of color blindness in some way. Women are luckier, only about one in two hundred is affected（感染）in this matter. Perhaps, after all ,it is safer to be driven by a woman.

There are different kinds of color blindness. For example, a man cannot see deep red. He may think that red, orange and yellow are all shades (影子) of green. Sometimes a person can’t tell the difference between blue and green. Only a few unlucky men may see everything in shades of green— a strange world indeed.

Color blindness in human beings is a different thing to explain. In only one eye there are millions of very small things called “cones（锥状细胞）” . These help us to see in the bright light and to tell differences between colors. These are also millions of “rods“（杆状细胞），but these are used for seeing when it is nearly dark. They show us shapes but not colors.

Some insects have favorite colors. Mosquitoes(蚊子) like blue but do not like yellow. A red light will not attract insects, but a blue light will. Human beings also have favorite colors. Yet we are lucky. With the help of the cones in our eyes, we can see many beautiful colors by day, and with the help of the rods we can see shapes at night.

1.“Color blindness” means in Chinese.

A. 盲目 B. 无色 C 色盲 D 讨厌颜色

2. Some people say it’s safer to be driven by women because .

A. women drive more carefully

B. women are better at driving than men

C. women can see things more clearly

D. there are fewer color — blind women

3.With the help of the “cones”, we can .

A. tell different shapes B. kill insets

C. see in the dark D. tell orange from yellow

4. We can attract and kill mosquitoes by using a light.

A. red B. yellow C. blue D. green

5. Which of the following sentences about color blindness is TRUE?

A. None of men can see deep red.

B. Not all of men have the same problem in recognizing colors.

C. None of men can tell the difference between blue and green.

D. All of men see everything in shades of green.

根据短文内容，判断下列句子是否正确，对的涂（A），错的涂（B）。

Plants are very important living things. Life could not go if there were no plants. This is because plants can produce food from the air, water and sunlight. Animals and man cannot produce food from the air, water and sunlight as plants do. Animals get their food by eating plants or other animals which eat plants. So animals and man need plants in order to live.

If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering ones.

Flowering plants can make seeds. The seeds are protected by the fruits. Some fruits have one seed. Some have two, three or four. Some have many. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana.

Most non-flowering plants don’t grow from seeds. They grow from spores (孢子). Spores are very, very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as the seeds. When these spores fall on wet and shady places, they usually grow into new plants.

1.Plants are very important to life.

2.Both animals and plants can produce food from the air, water and sunlight.

3.Banana is a fruit that does not have seeds.

4.All the flowering plants have many seeds.

5.Spores can grow into new plants wherever they fall.

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