题目
题型：不详难度：来源：
The sea has always interested man. From it he can get food, minerals and treasure. 小题1: But he couldn’t go far beneath its surface.
小题2: However, he isn’t a fish. Because he must breathe air, he can’t stay under the water’s surface for any length of time. To explore deep water, man faces even more dangers and problems.
A diver who wants to stay under water for more than a few minutes must breathe air or a special mixture of gases. 小题3: He can carry a tank of air on his back and breathe through a hose and a mouthpiece. Water weighs 800 times as much as air. Tons of water pushes against a diver deep in the sea. 小题4: .
When a diver is under great pressure, his blood takes in some of the gases he breathes. As he rises to the surface, the water pressure becomes less. If the diver rises too quickly, the gases in his blood form bubbles. The diver is then suffering from the bends（潜水员病）. The bends can cause a diver to double up in pain. 小题5:
| A．His body is under great pressure. |
| B．Scientists are trying to find more about the sea. |
| C．For thousands years, he could sail on it |
| D．They can even kill him． |
F. The water pressure can cause a diver to breathe with difficulty.
G. Man wants to explore deep into the sea.
答案
小题1:C
小题2:G
小题3:E
小题4:A
小题5:D
解析
试题分析：本文介绍了在几千年以前，人类就可以在海上航行，但是却无法潜入海下很远，人类很想探索深海，但人类不是鱼，潜入深海面临很多危险和困难。在深海中，大量的水挤在潜水员身上，他的身体承受巨大的压力，上岸后，可能会得潜水员病，潜水员病甚至会致命
小题1:根据But he couldn’t go far beneath its surface. 可知这里想说在几千年以前，人类就可以在海上航行，但是却无法潜入海下很远，故选C。
小题2:根据However, he isn’t a fish. Because he must breathe air, he can’t stay under the water’s surface for any length of time. To explore deep water, man faces even more dangers and problems. 可知这里想说人类想要探索深海，故选G。
小题3:根据He can carry a tank of air on his back and breathe through a hose and a mouthpiece.可知这里想说他可以穿潜水服，从上面向下输送氧气，故选E。
小题4:根据Tons of water pushes against a diver deep in the sea.可知这里想说在深海中，大量的水挤在潜水员身上，他的身体承受巨大的压力，故选A。
小题4:根据The diver is then suffering from the bends（潜水员病）. The bends can cause a diver to double up in pain. 可知这里想说潜水员病甚至会致命，故选D
核心考点
试题【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。The sea has always interested man. From】；主要考察你对数词等知识点的理解。[详细]
举一反三
By taking control of 小题4: you spend your time, you"ll increase your chances of becoming 小题5: more successful student. Perhaps more importantly, the better you are at managing the time you devote 小题6: your studies, the more time you"II have to spend on your outside interests .
The aim of time management is 小题7: to schedule every moment so we become slaves of a timetable 小题8: governs every waking moment of the day. Instead, the aim is to make informed choices as to how we use our time.
In the beginning, Facebook was just meant for Harvard University students to find and contact fellow students. It was meant to serve the purpose of keeping track of who was new to college to get in touch with each other for project purposes. It was an online directory(目录) , and was founded in 2004 0n the Harvard University campus. However, as soon as it was launched, almost two thirds of the total number of students registered themselves on Facebook. Mark Elliot Zuckerberg, along with Chris Hughes, Dustin Moskovitz. and Eduardo Saverin. helped in the launch of the site. To pursue this, Mark dropped out of Harvard and got into making Facebook a worldwide accessible site, and then to its current stand of being the top social networking site in the world.
Today, Facebook rules the social networking world, with one person in fourteen using it. It is also the second most popular site in the US, and is worth billions of dollars. And it has been a success story for the four co-founders, making them all accidental billionaires.
Title : Facebook-the most popular social networking site in the world
I . Definition :
*One popular website 小题1:
Ⅱ. 小题2: :
* Enabling people to gather for 小题3: 0n it
* 小题4:
* Offering a brilliant platform for businesses to reach out to their customers
Ⅲ Birth :
* Time: in 2004
* Place: 小题5:
lV. 小题6: :
* To help students contact each other
V. 小题7: :
* Mark Elliot Zuckerberg, along with Chris Hughes, Dustin Moskovitz, and Eduardo Saverin
VI. Popularity:
* As an 小题8: : having almost two thirds of the students on it
* As the top social networking site :
ruling the social networking ;
having over 小题9: in the world;
being 小题10: billions of dollars
Now Smith is at the booking office.
Clerk: Freedom Travel．Can I help you?
Smith: 小题1:
Clerk: What is your destination?
Smith: Well，I’d like to fly to Helsinki, Finland. I’d like the cheapest flight available.
Clerk: Okay. 小题2: There is one flight heading out then for $980. Will that be OK for you?
Smith: All right. I’ll take it.
Clerk: That’s Flight 1070 from Salt Lake City to New York, Kennedy Airport, transferring to Flight 90 from Kennedy to Helsinki.
Smith: _小题3:_
Clerk: It leaves Salt Lake City at 10:00 a.m. and arrives in New York at 4:35 p.m. You will then transfer to Flight 90 at 5:55 p.m., and arriving in Helsinki at 8:30 a.m. the next day.
Smith: All right. 小题4:
Clerk: Sure , no problem. We will inform the airlines. 小题5:
Smith: Will Smith.
| A．Cheap flights might not be comfortable. |
| B．I’d like to make a reservation for 23rd. |
| C．Can I request a vegetarian meal? |
| D．When will the plane leave New York? |
F. Could I have your name, please?
G. What are the departure and arrival times of those flights?
A . The different structure of blue holes.
B. Why scientists are interested in blue holes.
C. How a blue hole comes into being.
D. Blue holes exploring is becoming popular.
E. Rules to obey when diving into blue holes.
F. The general definition of a blue hole.
小题1:______________
A blue hole is a flooded sea cave with a hole that opens up at the land"s surface. These cave systems form in carbonate rock, often on islands. Some blue holes have very special rock formations and water chemistry. Far below sea level, they contain some of the harshest environments on Earth, with no oxygen and no light. Yet these areas are filled with life forms that have adapted to the extreme conditions.
小题2:___________
Blue holes get their name from the color some have when seen from the air. The color is usually a reflection of the sky on the water. Blue holes are the result of erosion in which water breaks down rock. Rain falling thousands of years ago contained chemicals which slowly wore away at the limestone landmass. These holes later filled with sea water as the sea level changed. The rising and falling of sea levels and the mixture of salt and fresh water further wore away at these cave formations.
小题3:___________
These flooded cave systems can be found in the ocean, or they can be found inland. Ocean caves are affected by tides, so they always have water movement. But blue holes on land are very still. They have several layers of water, chemicals, and bacteria. The top layer of fresh water comes from rainfall. This layer acts like a cap on top of the layered mixture, and keeps out oxygen from the atmosphere. The fresh water floats on a denser layer of saltwater. Underneath this is a layer of poisonous hydrogen sulfide, produced by bacteria living in the water. Underneath this layer is anoxic seawater -- water that does not contain any oxygen.
小题4:___________
Information gathered from these blue holes is helping scientists to increase their understanding of biology, archaeology and geology. But exploring these blue hole environments brings danger as well as discovery. Scientists are interested in these caves because oxygen-free conditions there are similar to those on Earth long ago, before oxygen existed on our planet. But there are many difficulties involved in diving into blue holes.
小题5:___________
One reason blue holes have not been fully explored is that they can be extremely dangerous. There are many safety rules that divers must follow to help ensure their survival. First, divers must have training and experience to swim in these caves. Divers who explore a cave for the first time must establish a thin rope called a guideline. This line helps them to safely enter and exit the cave without getting lost.
增加：在此处加一个漏词符号（∧），并在其下面写出该加的词。
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.每处错误及修改均仅限一词；
2.只允许修改10处，多者（从11处起）不计分。
Dear Brad,
I’m very glad to hear from you. In your last letter you ask about the post-80s in China. Actually I am the boy who belongs to this group. Comparing with our parents, life for us is getting much hard. The job market is tough and the house is expensively to afford. Now many girls prefer to marry with a man who owns a house and a car. Therefore, I don’t think love built on house and cars is true love, and I doubt how long it will last.
As a matter of fact, though situations are tough today, a lot of we post-80s are making great efforts live a good life. I believe we will have a nice future.
Li Hua
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