When an ant dies, other ants take it out of the nest, often within an hour after its death. This behavior interests scientists and they 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 behaviour. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I'm dead—take me away” when it is dead.

But there's a question to answer: As we know, if an ant is dead, it stops moving. But when an ant is sleeping or knocked unconscious, it is also not moving. However, other ants don't move the living ant out of the nest. How do they know this ant is not dead? Choe found that ants have another chemical on their bodies, which tells nearby ants something like, “Wait—I'm not dead yet” when it is not dead. Choe suspects that when an ant dies, the chemical that says, “Wait I'm not dead yet” quickly goes away. When other ants detect the “dead” chemical without the “not dead yet” chemical, they move away the body.

To test his theory , Choe and his team put different chemicals on ants. When the scientists used the “I'm dead” chemical, other ants quickly moved the treated ant away. When the scientists used the “Wait—I'm not dead yet” chemical, other ants left the treated ant alone. Choe believes this behavior shows that the “not dead yet” chemical overrides the “dead” chemical when picked up by other ants. And that when an ant dies, the “not dead yet” chemical fades away. Other nearby ants then detect the remaining “dead” chemical and remove the body from the nest.

Understanding this behavior can help scientists figure out how to stop ants from invading new places and causing problems.

1.What is the function of the first paragraph?

A. Leading the following paragraphs.

B. Showing the main idea of the passage.

C. Introducing the background of the passage.

D. Giving a summary of the passage.

2.Which of the following has the closest meaning to the underlined word “overrides” in the fourth paragraph?

A. is weaker than        B. is stronger than    C. is better than    D. is worse than

3. What can we learn from the passage?

A. Living ants can also be taken away when they are not moving.

B. When an ant dies, it can tell others using a certain chemical.

C. A living ant can pretend to be dead using a special chemical.

D. Ants often use chemicals to communicate with each other.

4.Which of the following descriptions about Dong-Hwan Choe is right?

A. Choe did this study in order to stop ants from invading new places.

B. Choe is a biologist who is only interested in animals, especially in ants.

C. Choe first came up with an idea to explain this ant behavior，and then did some tests to prove his theory.

D. Choe did the research on this ant behavior on his own

I used to be the messiest person alive．Over the years, through watching others and by trial and error, I have finally found ways to come up with plans, organize them and follow through with them．

Make an outline of everything you need to have and do to make your plan happen．Make a list of all of the steps that need to be accomplished and think about what needs to be done．

Detail everything thoroughly and read over it so you can start coming up with some mental solutions of how to carry out your plans．

You should ensure that if for some reason way one doesn’t work, you have way two and way three to lean back on．Therefore, different ways are needed at hand．It’s just a matter of being organized．Chances are that there is always more than one way of doing things, and chances are that if one of those ways doesn’t work, one of the other ones will．

Committing yourself to finishing at least part if not all of your plan at once is also necessary．It will show that you not only have initiative to get things rolling, but that you are interested in the results obtained with making the move to get everything done．

If you make a commitment to finish before a specific time, make sure that you carry that out, and be sure to do everything in the way you said you would, within the time-frame you set for yourself．

Don’t try to tackle （处理）more things all at a time．All that does is delay your progress, distract you and make you lose your interest, motivation and energy．

Carrying out an effective plan requires being as organized as possible．You will only achieve this by sticking to the order of the plan and not deviating or trying to do more at a time．

Last but not the least, you should never abandon things mid-project．It will only annoy everyone around you including yourself．Unfinished plans are a waste of time, energy and, in some cases, even money．

So, don’t be afraid of organization．The older we get, the more necessary it becomes to have the skills to follow through with confidence and to be able to carry through plans in an organized and manageable way．It pays to be organized, after all．

下面这幅图片描绘的是一幅反映十一黄金周交通堵塞及交通压力问题的场景。请根据你对这幅图片的理解用英语写一篇短文。你的短文应包含以下内容：

1.    描述图中所表达的相关信息；

2.    分析此现象的原因；

3.    提出你的建议(至少两条)

注意：

1.    可参用下面文章开头所给提示，你必要地发挥想象。

2.    词数120左右。开头已经写好，不计入总词数。

3.    作文中不得提及考生所在学校和本人姓名。

提示词：高速免费政策 toll-free road policy ; 

            交通拥堵traffic congestion

On the eight-day national holiday many drivers became victims of traffic jam on main highways. As is shown in the picture,                                         

 In ________ old society many young women died by so strange and cruel ________ custom.

If you take my ________, you'll make a lot of money in the trade.

Once we discover a mistake, we should not ______ it but correct it immediately, to create better conditions for economic development.

Many newspapers claim to be politically neutral, but few________ are.

 It is said that sandstorms will become more ________ as a result of global warming.

After the earthquake, many people had to be_____in a stadium because most of their houses were badly damaged