---- An ant has two stomachs --- one for itself and the other for others. ----Really? Quite interesting. I anything about it.A．don’t knowB．hadn’t knownC．haven’t knownD．didn’t know 题目和参考答案——青夏教育精英家教网—

题目内容

---- An ant has two stomachs --- one for itself and the other for others.
----Really? Quite interesting. I ________ anything about it.

A．don’t know

B．hadn’t known

C．haven’t known

D．didn’t know

解析

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相关题目

There are some very good things about open education．This way of teaching allows the students to grow as people, and to develop their own interests in many subjects．Open education allows students to be responsible for their own education, as they are responsible for what they do in life．Some students do badly in traditional classrooms．The open classroom may allow them to enjoy learning. Some students will be happier in an open education school. They will not have to worry about grades or rules．For students who worry about these things a lot, it is a good idea to be in an open classroom．

But many students will not do well in an open classroom．For some students, there are too few rules．These students will do little in school. They will not make good use of open education．Because open education is so different from traditional education, these students may have a problem of getting used to making so many choices．For many students it is important to have some rules in the classroom．They worry about the rules even when there are no rules．Even a few rules will help this kind of students．The last point about open education is that some traditional teachers do not like it. Many teachers do not believe in open education．Teachers who want to have an open classroom may have many problems at their school．

You now know what open education is．Some of its good points and bad points have been explained．You may have your own opinion about open education．The writer thinks that open education is a good idea, but only in theory．In actual fact, it may not work very well in a real class or school. The writer believes that most students, but of course not all students want some structure in their classes．They want and need to have rules．In some cases, they must be made to study some subjects．Many students are pleased to find subjects they have to study interesting．They would not study those subjects if they did not have to．

According to the passage, which of the following is NOT the reason why some students like open education?

A. The open classroom may allow them to enjoy learning．

B. Open education allows students to be responsible for their own future.

C. Open education allows the students to develop their own interests.

D. Open education has fewer rules.

From the passage we can learn that___________.

A. the writer believes that all students don’t want some structure in their classes

B. the writer believes that all students want some structure in their classes

C. nearly all teachers like open education

D. only the students that worry about rules or grades a lot like to be in an open classroom

Some students will do little in an open classroom because _______．

A. there are too few rules

B. they hate activities

C. open education is similar to traditional education

D. they worry about the rules

Which is NOT mentioned according to the passage given?

A. some advantages about open education

B. some disadvantages about open education

C. some students’ feelings in an open education school

D. the writer’s opinion about open education is the same as all the students’

Which of the following can best summarize the passage?

A. Many students like open education．

B. Open education is better than traditional education．

C. Open education is a really complicated idea．

D. Open education is a good idea in practice．

As a parent you have the responsibility to help your children understand money. But first you will need to understand your own attitude towards money, and make sure to practise what you teach.
Ask yourself what things that cost money are the most important to you. Also ask yourself what financial goals do you have for yourself and your family this year, in five years, and so on?
Take a minute to write down a list. Below are some ideas to get you started. There’s no right or wrong here. This exercise is just to help you grasp what money means to you so that you can help your children understand your values.
◆ Home
◆ Household expenses
◆ Education
◆ Recreation, entertainment
◆ Savings
◆ Charitable contributions
You can start discussing money when your children are as young as three years old. The best time to teach a child anything is when he or she shows an interest. So he prepared to start talking about money when your child starts asking you to buy candy or toys.
Begin by showing how money is exchanged for items or services. Show your children how money works by allowing them to buy something, such as a toy or a book.
Be open and honest, and explain to your children why they can or cannot have certain items. If you must say no to a child’s request to spend money, you might say, “You have enough toy trucks now.” Or, if the request is for multiple items, “You have a choice to make, between this toy and that one.”
You can start explaining the bigger picture once your children understand the basic function of money. Show an older child how money is used to provide for the whole family.
45. Why should parents understand their own money attitudes first?
A. To help their children earn money.      B. To set an exampel to their children.
C. To help them set financial goals.       D. To help them tell right from wrong.
46. Which of the following is NOT one of the major categories of things that cost money listed in the article?
A. Travel and investments.               B. Household expenses.
C. Education and entertainment.         D. Savings and charitable contributions.
47. Which of the following is NOT a way to teach the children about money?
A. Showing how money is exchanged.
B. Allowing children to buy whatever they like.
C. Explaining the limits involved in using money.
D. Having an open discussion about money.
48. According to the passage, when should parents start teaching a child about money?
A. When the child can understand its basic function.
B. When the child can understand how money is used to provide for the whole family.
C. When the child knows how to support a family.
D. As young as three, or when they start showing an interest.

As a parent you have the responsibility to help your children understand money. But first you will need to understand your own attitude towards money, and make sure to practise what you teach.

Ask yourself what things that cost money are the most important to you. Also ask yourself what financial goals do you have for yourself and your family this year, in five years, and so on?

Take a minute to write down a list. Below are some ideas to get you started. There’s no right or wrong here. This exercise is just to help you grasp what money means to you so that you can help your children understand your values.

◆ Home

◆ Household expenses

◆ Education

◆ Recreation, entertainment

◆ Savings

◆ Charitable contributions

You can start discussing money when your children are as young as three years old. The best time to teach a child anything is when he or she shows an interest. So he prepared to start talking about money when your child starts asking you to buy candy or toys.

Begin by showing how money is exchanged for items or services. Show your children how money works by allowing them to buy something, such as a toy or a book.

Be open and honest, and explain to your children why they can or cannot have certain items. If you must say no to a child’s request to spend money, you might say, “You have enough toy trucks now.” Or, if the request is for multiple items, “You have a choice to make, between this toy and that one.”

You can start explaining the bigger picture once your children understand the basic function of money. Show an older child how money is used to provide for the whole family.

45. Why should parents understand their own money attitudes first?

A. To help their children earn money. B. To set an exampel to their children.

C. To help them set financial goals. D. To help them tell right from wrong.

46. Which of the following is NOT one of the major categories of things that cost money listed in the article?

A. Travel and investments. B. Household expenses.

C. Education and entertainment. D. Savings and charitable contributions.

47. Which of the following is NOT a way to teach the children about money?

A. Showing how money is exchanged.

B. Allowing children to buy whatever they like.

C. Explaining the limits involved in using money.

D. Having an open discussion about money.

48. According to the passage, when should parents start teaching a child about money?

A. When the child can understand its basic function.

B. When the child can understand how money is used to provide for the whole family.

C. When the child knows how to support a family.

D. As young as three, or when they start showing an interest.

阅读理解。

     When an ant dies, other ants move the dead insect out. Sometimes, the dead ant get moved away very
soon-within an hour of dying. This behavior is interesting to scientists, who wonder how ants know for
sure-and so soon-that another ant is dead.
     One scientist recently came up with a way to explain this ant behavior. Dong-Hwan Choe is a biologist.
Choe found that Argentine ants have a chemical on the outside of their bodies that signals to other ants, "I'm
dead-take me away."
     But there's a twist to Choe's discovery. Choe says that the living ants-not just the dead ones-have this
death chemical. In other words, while an ant crawls around, perhaps in a picnic or home, it's telling other
ants that it's dead.
     What keeps ants from dragging away the living ants? Choe found that Argentine ants have two additional
chemicals on their bodies, and these tell nearby ants something like, "Wait-I'm not dead yet." So Choe's
research turned up two sets of chemical signals in ants: one says, "I'm dead," and the other set says, "I'm
not dead yet."
     Other scientists have tried to figure out how ants know when another ant is dead. If an ant is knocked
unconscious, for example, other ants leave it alone until it wakes up. That means ants know that unmoving
ants can still be alive.
     Choe suspects that when an Argentine ant dies, the chemical that says "Wait-I'm not dead yet" quickly
goes away. Once that chemical is gone, only the one that says "I'm dead" is left. "It's because the dead ant
no longer smells like a living ant that it gets carried to the graveyard, not because its body releases (释放)
new unique chemicals after death," said Choe. When other ants detect the"dead" chemical without the "not
dead yet" chemical, they drag away the body.
     Understanding this behavior may help scientists figure out how to stop Argentine ants from invading new
places and causing problems. Choe would like to find a way to use the newly discovered chemicals to spread
ant killer to Argentine ant nests.
     The ants' removal behavior is important to the overall health of the nest. "Being able to quickly remove
dead individuals and other possible sources of disease is extremely important to all animals living in societies,
including us," says Choe. "Think about all the effort and money that we invest daily in waste management."

1. The underlined word "twist" in Paragraph 3 means _____.

[ ]

A. an unexpected change
B. a clear mistake
C. an important key
D. a shocking conclusion

2. Ants judge whether another one is dead or not depending on _____.

[ ]

A. the sense of taste
B. the sense of smell
C. the sense of touch
D. the sense of sight

3. The result of the research can be used to _____.

[ ]

A. kill troublesome pests
B. solve the problem of endangered species
C. prevent further expansion of the ants' territory
D. keep the balance of nature

4. Why is it important to remove dead individuals?

[ ]

A. Because it is easier to manage the living.
B. Because it can save money to deal with the waste.
C. Because it can provide more space for the living.
D. Because it can keep the living from suffering disease.

5. What might be the best title of the text?

[ ]

A. Dead or living? It is easy to judge
B. Pulling away the dead ants is a difficult task.
C. Ant nests have great undertaking capacity.
D. Leaving it alone or taking it away? Ants feel puzzled.