One of the most important questions they had to consider was of public health.A. what B. this C. which D. that 题目和参考答案——青夏教育精英家教网—

题目内容

One of the most important questions they had to consider was _________ of public health.

A. what B. this C. which D. that

【解析】

试题分析：考查代词和从句辨析。如果把was后的部分看作表语从句，从句缺少谓语部分，因此不是表语从句，排除A、C；空白处指代的是“那个重要的问题”，即the question of public health，为避免重复，承前省略了the question，特指用that或the one，故选D。

考点：考查代词和从句辨析

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Scientists at Royal Holloway, University of London and Queen Mary, University of London have discovered that bees learn to fly the shortest possible route between flowers even if they discover the flowers in a different order. Bees are effectively solving the “traveling salesman problem”, and they are the first creatures found to do this.

The traveling salesman must find the shortest route that allows him to visit all locations on his route. Computers solve it by comparing the length of all possible routes and choosing the shortest, and it can keep computers busy for days. However, bees solve it without computer assistance using a brain the size of grass seed. Dr. Nigel Raine, from the School of Biological Sciences at Royal Holloway explains, “Bees solve traveling salesman problems every day. They visit flowers at multiple locations and because bees use lots of energy to fly, they find a route which keeps flying to a minimum. ”

The team used the computer to control artificial flowers to test whether bees would follow a route defined by the order in which they discovered the flowers or if they would find the shortest route. After exploring the location of the flowers, bees quickly learned to fly the shortest route.

As well as improving our understanding of how bees move around the landscape pollinating(授粉)crops and wild flowers, this research, which is due to be published in The American Naturalist, has other applications. Our lifestyle relies on networks such as traffic on the roads, information flow on the Web and business supply chains. By understanding how bees can solve their problems with such a tiny brain, we can improve our management of these everyday networks without needing lots of computer time. Dr. Raine adds, “Despite their tiny brains, bees are capable of extraordinary feats of behavior. We need to understand how they can solve the traveling salesman problem without a computer. ”

1. What would be the best title of the passage?

A. Bees help salesmen travel

B. Tiny-brained bees solve a complex mathematical problem

C. How bees discover the flowers

D. How to solve the “traveling salesman problem”

2.We may infer from the second paragraph that the “traveling salesman problem” 　　　.

A. can be solved by a computer easily

B. can’t even be solved by a computer

C. can puzzle both people and computers

D. remains to be solved by scientists

3. The main purpose of the last paragraph is to　　　.

A. provide further proof for the research

B. tell us how bees can fly the shortest route between flowers

C. tell us how the research about bees’ flying route was conducted

D. explain the importance of the research

4. It can be concluded from the passage that　　　.

A. all creatures are smarter than computers

B. the research about bees’ flying route can be applied to many fields

C. our networks are more complex than bees’ ones

D. with the help of the computer we can find out how bees can solve the “traveling salesman problem”

Recently our community has launched a campaign among all the residents , ____ we are called upon to do our little but to prevent the worsening environment.

A. whereB. whichC. asD. when

Some people have travelled to Canada while others may have just heard of it . As is known to all, the Canadian red and white maple leaf flag is officially called The National Flag of Canada. The Canadian flag shows a stylized red maple leaf with 11 points on a white background, with red borders down each side. The Canadian flag is twice as long as its width. The white square containing the red maple leaf is the same width as the flag. Canada is a very large country, too. It is the second largest country in the world.By contrast, it has a very small population. There are only about 29 millinon people there. Most Canadians are of British or French origin, and French is an official language as well English. About 45 % of the people are of British origin, that is, they or their parents or grandparents, etc, come from Britain. Nearly 30 % are of French origin. Most of the French-Canadians live in the province of quebec. Over the years people have come to live in Canada from many countries in the world. They are mostly from European countries and also from China, as well as other Asian countries.

However , Canada was not an empty country when the Europeans began to arrive. Canadian-Indian lived along the coast, bythe rivers and lakes and in forests. Today there are only 350,000 Canadian-Indians in the whole country, with their own language. In the far north live the Inuits. There are only 27, 000 Canadian-Inuits. Their life is hard in such a harsh climate.

1.What is the populatin of Quebec?

A. More than 29, 000.000

B. About 30% of the total population.

C. Over 45% of th etotal population

D. Less than 30% of the French-Canadians.

2.Which of the following stands for Canada?

3.Which of the following is TRUE according to this passage?

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C. Nowadays Inuit still have difficult living conditions.

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Sixteen years ago I learned this lesson in the back of a New York City taxi cab. Here’s what happened. I hopped in a taxi, and we took off for Grand Central Station. We were driving in the right lane when, all of a sudden, a black car jumped out of a parking space right in front of us. My taxi driver slammed on his brakes, skidded, and missed the other car’s back end by just inches!

The driver of the other car, who almost caused a big accident, started yelling bad words at us. My taxi driver just smiled and waved at the guy. And I mean he was friendly. So, I said, “Why did you just do that? This guy almost ruined your car and sent us to the hospital!” And this is when my taxi driver told me what I now call “The Law of the Garbage Truck. ”

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A. The taxi almost hit another car.

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假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在此处加一个漏字符号（∧），并在下面写出增加的词；

删除：把多余的词用斜线（﹨）划掉；

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从11处起）不计分。

Time flies! This is a third year that I have been in this school. In the past two and a half years, our school had organized many activities. What impressed me best was an activity called “Learning to Farm”. In an autumn afternoon, we were sent to a farm which we learned to plant potatoes. Having been in the city for so a long time, we were so happy to go to the countryside. After divided into three groups, we started to work. Some students cut potatoes into pieces; some dug holes, and the others put the pieces of potatoes into the hole, put the earth back and pushed them down hard. We continued doing that until all the work was done. Although we were exhausted, but we felt fulfilled on our way back home.

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

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● Dress appropriately

2. That means dressing up or putting on nice, clean, situation-appropriate clothes for social situations．It isn't difficult and it doesn't have to cost you much, either．

● Be aware of your body language

Words express very little of what you say．Body language can tell someone a lot about your mood and confidence level． 3. Eye contact is an easy way to make others feel comfortable, important and special．Nervous body language can make others uncomfortable and anxious．Try to be aware of your body language when communicating with others．

● Respect the opinions of others

Not everyone will have the same opinion with you, and friendly disagreements can be a gateway to a great conversation. Respect other people's right to have their own opinion．Respect the opinions of others even if you disagree with them． 4.

● 5.

People love talking about themselves, but generally, you want to be careful of taking over the conversation．By listening carefully to what others are saying, you are not only making them feel important, but you can gather cues you need to keep the conversation going and bridge to new topics．

A．Be a careful listener.

B．Show an interest in every person you meet.

C．Smile especially when first meeting someone.

D．Make sure you look nice whenever you meet someone new.

E．Meeting new people and starting conversations is often challenging.

F．Others will want to be with you and help you make a good impression.

G．Don't force others to believe what you believe or to see things only as you see them.

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