In what area did Colin excel during recent training？

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第1题

What did he suggest besides the area sales survey？To make __________.

What did he suggest besides the area sales survey？

To make __________.

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第2题

What did the dog handlers learn before the searches？A．There was actually no target scent i

What did the dog handlers learn before the searches？

A．There was actually no target scent in the search area.

B．Each search area contained three target scents.

C．Their dogs were expected to find the scents of red paper.

D．Some target scents may be labeled with a special mark.

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第3题

According to the data in Figure 3, what effect, if any,did removing the herbaceous layer h

ave on the percent distribution among the 1-year-old seedlings in the 1-hectare area of the forest？ The removal of the herbaceous layer:

A.changed the percent for the northern red oak only.

B.changed the percent for the red maple and the percent for the white pine only.

C.changed the percent for each of the 5 tree species.

D.did not change the percent for any of the 5 tree species.

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第4题

What topics related to the Nightcap Oak does the professor mainly discuss？ Choose 2 answer

A．Factors that relate to the size of the area in which it grows

B．The size of its population over the last few centuries

C．Whether anything can be done to ensure its survival

D．Why it did not change much over the last one hundred million years

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第5题

听力原文：M: May I see your license？W: But officer, did I do something wrong？M: Did you see

听力原文：M: May I see your license？

W: But officer, did I do something wrong？

M: Did you see the speed limit sign. It says thirty five miles an hour here.

W: But my speed meter reads only thirty miles.

M: Then why did my radar show you're going forty five.

What is the speed limit in that area？

A．30 miles.

B．35 miles.

C．40 miles.

D．45 miles.

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第6题

According to people who saw it, a large, bright object "exploded" over a. Siberian forest

in 1908, making a very loud noise and causing a spectacular "cloud of fire." Surprisingly, scientists did not visit the area until 1927. If anything, they were expecting to find a large hole and fragments(碎片)of rock that would indicate the impact of a meteor(流星). Instead, they found an area with fallen trees radiating(辐射)out from a central point, and largely destroyed by fire. Recent studies concluded that an object exploded about three miles above the ground. If this destruction was not caused by a meteor, then what did cause it？ This is a tantalizing question. Some scientists think that a small comet(彗星)exploded just before colliding(碰撞) with the earth and ignited the forest. Recently, a few scientists have noticed that the area looks as if an atomic explosion took place, but they have no explanations of how or why. There is even a theory that a spaceship from another planet exploded while trying to land on the earth. To date, the evidence for all these theories is very mainly for educated guess.

It was surprising that ______.

A．the "explosion" caused a loud sound and a big fire

B．the "explosion" caused much damage to the forest

C．scientists didn't explore that area right after the explosion

D．people can't make out the cause of the explosion

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第7题

According to the passage, the word "Now casts" （paragraph 3 ) means ______.A．a way of col

According to the passage, the word "Now casts" (paragraph 3 ) means ______.

A．a way of collecting raw weather data

B．a forecast which can predict the weather conditions in the small area in an accurate way

C．a network to collect instant weather data

D．a more advanced system of weather observation

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第8题

听力原文：M: Did you hear about the air crash that occurred in South America recently？ It w

as quite a tragic accident!

W: No, I didn't see anything in the news about it. What happened？

M: A foreign airliner was attempting to land at night in a mountainous area of Argentina and flew into a hill!

W: That sounds really terrible! Did anyone survive？

M: No, everyone aboard, including the crew, was killed instantly.

W: What were the circumstances？ Was there had weather, a fire, or engine failure？

M: Apparently, there was some low clouds in the area, but mostly it was just miscommunication between the pilots and the air traffic controllers.

W: Weren't they both speaking in English, the official international aviation language？

M: Yes they were, but the transmission from poor quality radios was slightly distorted and the accents of the Spanish speaking controllers was so strong that the pilots misunderstood a vital instruction.

W: How could a misunderstanding like that cause such a serious accident？

M: The pilots were told "descend to 2 -2,000 feet". The instruction actually meant 22,000 feet, but they thought they heard descend to 2,000 feet. That's a huge difference, and it should have been confirmed, but it was not. Unfortunately, the terrain of the mountains in that region extends up to 20,000 feet.

W: So the pilots did descend to the wrong altitude then, thinking they were following the air controllers instructions.

M: Sadly enough, yes they did. It was a very bad mistake. Many people died as a result of this simple understanding.

W: Wow, that's a powerful lesson in how important it can be to accurately communicate with each other.

(20)

A．Bad weather.

B．Human error.

C．Breakdown of the engines.

D．Failure of the communications system.

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第9题

听力原文：Narrator Listen to part of a talk in a history class. Professor The Mayas wer

e a group of people who lived in Central America. They lived in an area of about 500 000 square kilometers about 900 kilometers from north to south and about 600 kilometers from east to west. They lived in the area which is today Guatemala, British Honduras, the western part of Honduras, El Salvador, and parts of Mexico. There are still some Mayas living in that area today, but there used to be a lot more Mayas living there in the past. At one time the Mayan population was over 2 million people. About 1 000 years ago there were three main parts of the Mayan civilization: the southern part, the central part, and the northern part. The parts were very different; each region had different characteristics. The southern part, what is today part of Guatemala and western El Salvador, had an excellent climate. It wasnt too hot and there was a moderate amount of rain. The soil there was good, so plants grew easily. In addition to the good climate, the southern part had many natural resources, such as wood for fuel and stones for building. The combination of good climate and natural resources made the southern part very wealthy. The general wealth of the Mayan civilization was localized in the southern part. In the central area, in what is today the southern half of the Yucatan peninsula, the climate was much worse than in the south. It was extremely hot and there were heavy rains. The forests grew quickly. The people had to work hard to control the forests so that they could grow something to eat. It was difficult to live in this central area. The northern area, what is today the northern part of the Yucatan peninsula, was even more difficult to live in than the central area. The northern area had very little rainfall and very few plants or trees. It was difficult for anything to grow in this northern area because there is a layer of rock below the surface of the ground. The soil in the northern Yucatan is very rocky. Generally, the people in the north had a difficult life. Out of these parts, the southern part, the central part, and the northern part, most of the cultural achievements came from the central area. In addition, most of the Mayan population lived in the central area. During the Mayan Classical Period, from 3000 BC to 900 AD, the central area was very important culturally. There were many large ceremonial centers in the central area. Tikal was the largest known of these centers. Originally, people did not live in these centers. The centers were used only for religious ceremonies and as market places. These places were empty except on market days and religious festivals. During those times thousands of people came in from the countryside. Apparently, towards the end of the Classical Period, in about 700 AD, more and more people began to move into these centers. They used these market centers as a place to live. This increase in population caused problems for the farmers near the centers. The farmers near these market centers had only a small amount of good farming land. However, with the migration of people to the centers they had to grow more and more goods on their land in order to feed these people. It became increasingly difficult for them to raise enough food. Because of overcrowding, the centers became noisy and polluted. Water pollution was one of the greatest problems in the centers. Because the population grew so quickly, the centers didnt have sufficient systems for bringing in clean water and for getting rid of dirty water. So this movement to the market centers caused several serious problems for the Mayas in the central area. At the end of the ninth century, in the late 800s, the population in the market centers dropped sharply. Many people moved to the north to places like Uxmal and Kabah. The market places, the great buildings, and the great artistic achievements all were left behind. Historians have studied these certain questions. Why did the population drop？ Why did the Mayas leave the market areas？ Why did they move to the North where it was so dry and where the soil was so poor？ One theory is that the centers collapsed because of environmental reasons. The overcrowding and the pollution may have caused such problems that people were no longer able to live in these centers. In any case, the great Mayan civilization began to decline around 900 AD. People continue to study the Mayan culture and are still trying to discover why the civilization declined. Now get ready to answer the questions. You may use your notes to help you answer. 11. In which part can we find the general wealth of the Mayan population？ 12. Which is NOT true about the central area？ 13. What caused problems for the farmers near the market centers？ Listen again to part of the conversation. Then answer the question. Professor During the Mayan Classical Period, from 3000 BC to 900 AD, the central area was very important culturally. There were many large ceremonial centers in the central area. Tikal was the largest known of these centers. Originally, people did not live in these centers. The centers were used only for religious ceremonies and as market places. 14. Why does the professor say this？ Professor During the Mayan Classical Period, from 3000 BC to 900 AD, the central area was very important culturally. 15. What caused the collapse of the market centers according to the talk？ 16. What can be inferred about the Mayan culture？Narrator Listen to part of a talk in a history class. Now get ready to answer the questions. You may use your notes to help you answer.

In which part can we find the general wealth of the Mayan population？

A．The northern part.

B．The southern part.

C．The central part.

D．The western part.

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第10题

听力原文：M：Did you hear about the air crash that occurred in South America recently？ It wa

s quite a tragic accident!

W：No, I didn't see anything in the news about it．What happened？

M：A foreign airliner was attempting to land at night in a mountainous area in Argentina and flew into a hill!

W：That sounds really terrible! Did anyone survive？

M：No，everyone aboard，including the crew，was killed instantly．

W：What were the circumstances？ Were they bad weather, a fire, or engine failure？

M：Apparently，there were some low clouds in the area，but mostly it was just miscommunication between the pilots and the air traffic controllers．

W：Weren't they both speaking in English，the official international aviation language？

M：Yes they were，but the transition from poor quality radios was slightly distorted and the accents of the Spanish speaking controllers was so strong that the pilots misunderstood a vital instruction．

W：How could a misunderstanding like that cause such a serious accident？

M：The pilots were told to descend to 22,000 feet．The instruction actually meant 22,000 feet，but they thought they heard descend 2,000 feet．That's a huge difference．and it should have been confirmed．but it was not．Unfortunately，the terrain of the mountains in Norweija ascend to 2,000 feet．

W：So the pilots did descend to the wrong altitude then，because they were following the air controller's instructions．

M：Sadly enough，yes they did．It was a really bad mistake．Many people died as a result of the simply misunderstanding．

W：Wow，that's a powerful lesson on how important it can be to accurately communicate with each other．

What was the cause of the tragedy？

A．Bad weather.

B．Human error.

C．Breakdown of the engines.

D．Communications system failure.

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In what area did Colin excel during recent training？A．team workingB．report writingC．priori