One Monday morning, Paul and his classmates were in science laboratory for their practical chemistry lesson. The students were going to work in pairs to do an experiment. Before they began, the teacher gave them this description of the different stages of the experiment.
Stage 1: Prepare the equipment: a test tube, a crucible, a Bunsen burner and tongs.
Stage 2: Weigh 5 grams of baking soda (sodium bicarbonate) and put it in a crucible.
Stage 3: Heat 10 ml of hydrochloric acid (盐酸) in a test tube.
Stage 4: Pour the warm acid onto the baking soda and continue to heat the mixture.
Result: The acid reacts with the bicarbonate（碳酸氢盐）to form water, carbon dioxide gas and salt. The hotter the mixture, the quicker the reaction. Continue to heat the mixture until the water evaporates, leaving the salt in the crucible.
Paul and his partner followed the instructions and set up their equipment. Paul went to the cupboard to get a bottle of hydrochloric acid. He found that there was only one bottle in the cupboard so he took that. There was no label on the bottle and Paul didn’t check with the teacher if it was the right solution.
He measured the liquid and poured it into a test tube. Using tongs to hold the test tube, he heated it over the Bunsen burner. That’s when things started to go wrong. The liquid in the test tube was not hydrochloric acid. When it was heated, it formed a thick cloud of white gas. Soon the room was full of this strong smelling white gas.
All the students started coughing and their eyes hurt. The teacher immediately opened the windows and ordered the students to leave the laboratory at once. She realized that the liquid was a crylamide (丙烯酰胺) and that it is poisonous.
Fortunately, nobody was injured in the incident. However, it taught the students and the teacher a good lesson.What lesson did the incident teach the students and the teacher?
| A．Never have a bottle without a label in the chemistry lab! |
| B．Obey your teacher’s instructions in the Chemistry lab. |
| C．A crylamide can’t take the place of hydrochloric acid. |
| D．Finding something unusual happened, you have to leave the laboratory at once. |
What substance were the students making in the experiment?
| A．Water | B．Carbon dioxide gas | C．Salt | D．Poisonous gas |
Why did Paul make the mistake?
| A．He went to the cupboard to get the bottle by himself. |
| B．He found that there was only one bottle in the cupboard so he took that. |
| C．There was no label on the bottle. |
| D．Paul didn’t check with the teacher that it was the right solution. |
Why did the teacher send the students out of the classroom?
| A．Becausethe room was full of this strong smelling white gas. |
| B．Because all the students started coughing and their eyes hurt. |
| C．Becausethe liquid was a crylamide and that it is poisonous. |
| D．Because someone was injured in the incident. |
Satellites are an important part of our ordinary lives．For example, the information for weather forecasts is sent by satellite．Some satellites have cameras which take photographs of the Earth to show how clouds are moving．Satellites are also used to connect our international phone calls．
Computer connections of the World Wide Web and Internet also use satellites. Many of our TV programs come to US through satellites．Airplane pilots also sometimes use a satellite to help them find their exact location．
We use satellites to send television pictures from one part of the world to another．They are usually 35，880 kilometers above the equator．Sometimes we can see a satellite in the sky and it seems to stay in the same place．This is because it is moving around the world at 11，000 kilometers an hour—exactly the same speed
that the earth rotates．A satellite must orbit the Earth with its antennae(天线)facing the earth．Sometimes, it moves away from its orbit，So there are little rockets on it which are used to put the satellite back in the right position．This usually happens about every five or six days．
Space is not empty! Every week, more and more satellites are sent into space to orbit the Earth．A satellite usually works for about 10-12 years．Satellites which are broken are sometimes repaired by astronauts or sometimes brought back to Earth to be repaired．Often，very old or broken satellites are left in space to orbit the Earth for a very long time．This is very serious because some satellites use nuclear power and
they can crash into each other．Which of the following is NOT done by satellites according to the passage?
| A．Sending information for weather forecast． |
| B．Taking photographs of the Earth． |
| C．Sending TV pictures． |
| D．Providing food for airplane pilots． |
What’s the speed the earth rotates at?
| A．35,880 kilometers per hour． | B．335,880 kilometers per hour． |
| C．11,000 kilometers per hour． | D．110,000 kilometers per hour |
Why does the satellite move around the world at the same speed as the Earth rotates?
| A．In order to take photographs． |
| B．In order to stay in a certain position in the orbit． |
| C．In order to move away from its orbit． |
D．In order to send television pictu res． |
What does the underlined word “This” in the 3rd paragraph refer to?
| A．A satellite． | B．A little rocket． |
| C．A satellite seems to stay in the same place in the sky． | |
| D．The satellite puts the rockets in the right position． |
Which is true of satellites?
| A．A satellite usually works for about 10-12 years． |
| B．Every time a satellite gets broken，it is brought back to the Earth to be repaired． |
| C．A broken satellite is never left in space． |
| D．They often crash into each other． |
Some people love eating food right after it is cooked. I prefer food just take out from the freezer. Fruit, candy, nuts, chocolate, cake with butter cream frosting(糖霜),even peas, all of them taste delicious when frozen. In fact, I often eat them that way.
I was a kid when I picked up the habit. In my family, lots of things were thrown into the freezer —finally, two freezers—to prevent them from going bad. Among them were some of the candies my sisters and I had collected on Halloween.
If we eat when they are still warm, we’ll find ourselves taking the cookies more than we should. It’s better if we can put them into the freezer and wait. That way we’ll eat less and enjoy them more because they are hard and chewing becomes a slower, more patient effort. That’s the point about frozen butter-cream frosting. Put it in your mouth at room temperature, and it’s gone very quickly. But when it’s frozen, you can enjoy the taste much longer as it melts(融化) in your mouth.
The freezer treats a lot of fruits kindly. Take frozen grapes for example, I keep a bowl of grapes in my freezer. They become a little icy, and somehow their sweetness is improved. They are perfect and healthy dessert(点心).This is the same with oranges, apples, bananas…You might think bananas would get super-hard when frozen. Wrong! They become cool, creamy and sweet. If you have wisely covered some or all of the bananas with melted chocolate before putting them into the freezer, they will have a double taste.
As long as you aren’t eating anything that truly has to be hot, go ahead and experiment. What is the passage intended to tell us ____________.
| A．Fruit should be frozen before one eats it. | B．Frozen food is better than hot food. |
| C．The author prefers frozen food. | D．Hot food is not healthy. |
The author began to enjoy frozen food when he _________.
| A．was young | B．learned cooking | C．got married | D．got a fever |
Why does the author NOT advise us to take hot cookies?
| A．Because they need more time to prepare. |
| B．Because the taste is not good when they are hot. |
| C．Because they are too delicious to avoid our overeating. |
| D．Because we may eat them quickly and enjoy them less. |
What does the underlined word “it” in the third paragraph refer to?
| A．The taste | B．Butter cream | C．The cookie | D．Frozen butter cream frosting |
Which of the following is the advice the author gives on eating fruit?
| A．Make bananas hard. | B．Keep grapes in a bowl. |
| C．Mix kinds of fruits together. | D．Add melted chocolate to bananas. |
When my first wartime Christmas came, I was in basic training in New Jersey and not sure if I would make it 
home for the holiday. Only on the afternoon of December 23 was the list of men who would have the three-day holiday posted. I was one of the lucky soldiers. It was Christmas Eve when I arrived home, and a little snow had fallen. Mothe
r opened the front door. I could see beyond her, into the corner of the living room where the tree had always stood. There were lights, colors, and ornaments (饰品) shining against the green of a pine.
"Where did it come from?" I asked.
"I asked the Gates boy to cut it," my mother said. "I wouldn't have had one just for myself, but when in great need... such a rush! He just brought it in this afternoon."
T
he pine reached to the proper height, almost to the ceiling, and the Tree Top Crystal（水晶）Star was in its place. A few green branches reached out a little awkwardly（难看）at the side, I thought, and there was a bit of bare trunk showing in the middle. But the tree filled the room with warm light and the whole house with the pleasant smell of Christmas.
"It's not like the one you used to find," my mother went on. "Yours were always in good shape. I suppose the Gates boy didn't know where to look for a better one. But I couldn't be fussy(挑剔的)."
"Don't worry," I told her. "It's perfect."
It wasn't, of course, but at the moment I realized something for the first time: All Christmas trees are perfect.
1. What did his mother's Christmas tree look like? 
2. From the passage we can infer (推断) that ________ .
A. all the soldiers had the three-day holiday
B. the writer could not go home for Christmas
C. the writer spent his first Christmas during the war
D. not all the soldiers went home for Christmas during the war
3. From the passage, we can conclude that ________ .
A. his mother didn't like Christmas trees
B. the writer didn't like the tree cut by someone else
C. the writer used to cut very beautiful Christmas trees
D. his mother didn't want to have a Christmas tree during wartime
4. The best title for this passage would be ________ .
A. The Perfect Christmas Tree
B. How to Choose a Christmas Tree
C. How Soldiers Spent Their Christmas
D. A Christmas with an Ugly Christmas Tree
5. What does the writer mean by saying "All Christmas trees are perfect"?
A. Nothing is as perfect as Christmas.
B. Once at home, everything is so nice.
C. During the war, trees are hard to find.
D. All Christmas trees are the most beautiful.
Chinese tradition says a different animal represents each new year of the 12-year Chinese Zodiac(黄道十
二宫) cycle. According to the Chinese calendar, the year you were born may determine your personality. Every year of this cycle is represented by an animal, and legend has it that people born under that animal have certain personality traits. Here are some of them:
Dragon
The Real Thing: The mythical dragon is a symbol of power and good fortune in Chinese culture. One of the most popular figures in Chinese art, the dragon is believed to be a combination of nine animals, including a frog, a tiger, an eagle, and a fish.
Born a Dragon: You go out of your way to help your friends, who often seek you out for advice. Your outgoing personality helps you get along with many types of people.
Snake
The Real Thing: Snakes have great instincts. Some “play dead” to fool predators（捕食者）, and most sense prey by detecting ground vibration（震动）. They can take more than an hour to swallow a meal, and they become inactive for up to two weeks before they shed their skin.
Born a Snake: You rely on yourself before asking others their opinions. At times you want to take a break from the action. It’s not that you are lazy---sometimes you just like to think.
Pig
The Real Thing: Domesticated（驯养）pigs have been helping human for about 9,000 years. Incredibly intelligent, a pig shows its smarts by rolling in mud and sticking its snout in dirt. Why? The mud keeps it cool, and rooting in the dirt provides important vitamins.
Born a Pig: Smart and caring, you live to
help other people. You have great taste and love to wallow in the nicer things in life.
Rat
The Real Thing: Most rats are highly adaptable. They can live just about anywhere and eat about anything. Before brown rats leave their underground burrows, these clever creatures send one rat ahead to make sure danger doesn’t exist outside.
Born a Rat: You welcome challenges and enjoy learning about new things. Funny and smart, you are generous and will protect your pack of friends.
______
The Real Thing: The largest of the big cats, they hunt alone. They secretly move tow
ards prey, then leap and attack when the time seems right. Dinner still escapes most of the time.
Born a _____: You are a natural leader but often like to do things by yourself. (That’s how you stay in charge!) You believe in fighting for what’s right, even if
you’ll lose in the end. According to the description of the last animal, we can choose _____ to fill in the blanks.
| A．Tiger | B．Lion  |
C．Ox | D．Monkey |
The underlined word “snout” probably means _____.
| A．back | B．nose | C．head | D．tail |
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 a traditional classroom. 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 ma
ke good use of open education. Because open education is so different from traditional education, these students may have a problem 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 th
at 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 schools.
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.Open education allows the students to __________.
| A．grow as the educated | B．be responsible for their futur e |
| C．develop their own interests | D．discover subjects outside class |
Open education may be a good idea for the students who __________.
| A．enjoy learning | B．worry about grades |
| C．do well in a traditional classroom | D．are responsible for what they do in life. |
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 the traditional education | D．they worry about the rules |
Which of the following best summarizes the passage?
| A．Open education is a really complex idea. | B．Open education is better than traditional education. |
| C．Teachers dislike open education. | D．The writer thinks that open education is a good idea in practice. |
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