A Simple Scientific Experiment
| Below is a description of a single scientific experiment. It shows us how iron reacts ( 反应) with air and with water. Aim : To find out if iron rusts( 生锈) (a) in dry air ; (b) in water that has no air in it ( air- free water) ; (c) in ordinary water. Materials : 3 clean iron nails ( 铁钉) ; test tubes ; test tube holder ; cotton wool ; oil ; Bunsen burner. |
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| Iron in dry air Method (1)Put some iron nails at the bottom of a test tube. (2)Push some cotton wool down the tube. (3)Leave the tube for one week. Result After one week, the nails have not rusted. Conclusion Iron does not rust in dry air. Iron in air-free water Method (1)Half-fill a test tube with water. (2)Boil the water for three minutes. (This makes sure there is no air in the water. (3)Put two or three clean nails in the water. |
(4)Add some oil to the water. (This will keep air out of the water.) (5) Leave the tube for one week. Result The nails do not rust in the tube with air-free water. Conclusion Iron does not rust in air- free water. Iron in ordinary water Method (1)Half –fill a test tube with water and add two or three clean nails. (2)Leave the tube for one week. Result The nails rust in the tube with ordinary water. Conclusion Iron rusts in ordinary water. (238 words) |
In the first part of the experiment the cotton wool is most probably used to ______________.
| A．keep the air dry | B．keep the tube wet |
| C．make the nails rust | D．keep the tube clean |
What are necessary steps to make sure the water in the tube is air free?
①Leave half a tube of water in it
②Boil the water for some time
③Put some clean iron nails in the tube
④Add some oil to the water
| A．①② | B．①③ | C．②③ | D．②④ |
We can conclude from the experiment that only ____________ makes iron rusty.
| A．dry air | B．cotton wool | C．ordinary water | D．air-free water |
Let me tell you my penfriend Ivan. He is 12 years old. He likes playing football. He usually plays football with his friends at weekends.
Ivan lives with his father and mother in a city in France. They have a home with five rooms, a swimming pool and a garden. They often have a party in the garden at weekends. They like to help their neighbours. His home is not near his school, so Ivan takes a bus for an hour and then walks for 10 minutes to school. There is a Basketball Club near his school. He likes playing basketball in the club.
Ivan’s father is a worker. He is busy. Ivan’s mother is a doctor. She is nice to the patients. Ivan wants to be a teacher when he grows up.1 want to be a teacher, too. Every month Ivan writes two letters to me. He’ll come to China next year. We’ll meet then.How old is Ivan now?
| A．He is 11. | B．He is 12. | C．He is 13. | D．He is 14. |
What are Ivan’s hobbies?
| A．Basketball and swimming. | B．Football and basketball. |
| C．Football and swimming. | D．Reading and swimming. |
How often does Ivan write to me?
| A．Twice a month. | B．Twice a week. | C．Every day. | D．Every week. |
Ivan studies in ________ now.
| A．America | B．China | C．France | D．Japan |
Which is the best title(标题)for the passage?
| A．How To Make Penfriends | B．Something About Ivan |
| C．What Is Ivan’s Home Like | D．Ivan’s School Life |
| Sunny English Club For students 16:00 ~ 18:00 Every Saturday 200 yuan a month 9 Zhou Yu Street Tel: 3786290 Foreign teachers, English songs and films and more! |
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| Ocean Museum 9:00~17:00 From Thursday to Sunday ticket: 50 yuan 132 Xue Yuan Street Tel: 5439871 Show you a full picture of sea lives! |
Health Centre 9:00 ~ 17:00 16 Yong Le Street Tel: 3801451 Free examinations for those over 70 Give you good advice to keep healthy! |
Sunny English Club is for ______.
| A．nurses | B．policemen | C．businessmen | D．students |
You will pay ______ if you want to stay in the English club for half a year.
| A．300 yuan | B．600 yuan | C．1,200 yuan | D．2,400 yuan |
You can visit Ocean Museum ______.
| A．on Saturday | B．on Wednesday | C．on Monday | D．anytime |
One can get free examinations in Health Centre if he is ______.
| A．9 | B．17 | C．67 | D．73 |
If you are interested in the life of fish, you should go to ______.
| A．Health Centre | B．Ocean Museum |
| C．Sunny English Club | D．16 Yong Le Street |
Modern life is impossible without traveling. The fastest way of traveling is by plane. With a modern plane it takes one day to travel places which took a month or more to get to a hundred years ago.
Traveling by train is slower than by plane, but it has its advantages（优势）. You can see the country you are traveling through. Modern trains have comfortable seats and dining-cars. They make even the longest journey enjoyable.
Some people prefer to travel by sea when possible. There are large planes and river boats. You can visit many other countries and different parts of your country on them. Ships are not as fast as trains or planes, but traveling by sea is a very pleasant way to spend a holiday.
Many people like to travel by car. You can make your own timetable. You can travel three or four hundred miles or only fifty or one hundred miles a day, just as you like. You can stop wherever you wish --- where there is something interesting to see, at a good restaurant where you can enjoy a good meal, or at a hotel where you can spend the night. That is why traveling by car is a popular pleasant trip, while people usually take a train or a plane when they are traveling on business.From the passage (短文), we know the fastest way of traveling is ____.
| A．by train | B．by sea | C．by plane | D．by car |
If we travel by car, we can _____.
| A．make the longest journey enjoyable |
| B．travel to a very far place in several minutes |
| C．make our own timetable |
| D．travel only fifty or one hundred miles a day |
The underlined (划线的) word “They” in the passage refers to (指的是)____.
| A．modern trains in the country |
| B．comfortable seats and dining-cars |
| C．the travelers on the modern trains |
| D．the slower ways of traveling |
When people travel on business, they usually take ____.
| A．a plane or a car | B．a car or a boat |
| C．a boat or a train | D．a train or a plane |
How many ways of traveling are mentioned (被提到的) in the passage?
| A．Four. | B．Three. | C．Two. | D．Six |
Every day when I enter the classroom, I will take a look at the wall beside my seat. You will find nothing special about this old wall if you just look at it. But for the students in my class, it is a special wall. Take a good look at it, and you will get to know the real feelings and thoughts of us, the 9th graders.
In the middle of the wall, there is a big “VICTORY”. It was written in pencil. I guess it must have been written by someone who got a good mark in an exam.
A little higher above the formulas, there is a poem. It only has two sentences. It reads: All those sweet memories have disappeared. Like tears dropping in the heavy rain.
Oh! It must have been written at the end of the last semester in middle school. Classmates had to leave school and good friends had to part. What a sad poem!
If you look at the wall more carefully, you will find many other interesting things, like a crying face, or a happy face, and other patterns(图案). There are still some patterns and letters that I can’t understand, but they all show the feeling of the students who drew them.
For years, the wall has witnessed(目睹) all the things that have happened in the classroom. I don’t know how it will be next year, two years from now, or even ten years from now. But I hope more smiling faces will be drawn on it.There is ____ special on this wall.
| A．something | B．anything | C．nothing | D．everything |
What was the “VICTORY” written in?
| A．Chalk | B．Pencil | C．Pen | D．Brush |
When has the poem been written?
| A．At the beginning of the last semester. | B．At the end of the year. |
| C．At the end of the last semester. | D．At the beginning of the last month. |
What’s the meaning of the underlined word?
| A．部分 | B．分离 | C．和好 | D．聚集 |
What’s the title of the passage?
| A．The Pictures of the Wall | B．The Feelings of the Students |
| C．The Patterns of the Classroom | D．The Hope of the Writer |
Two magazines recently listed the best cities to live in. Here are two of the cities listed as “the world’s best.”
SAN JOSE, COSTA RICA The city has comfortable weather all year round (15℃ to 26℃). Housing is not very expensive in San Jose. Also, many of the city’s older neighborhoods are very beautiful and have small hotels and cafés.Beautiful mountains are around the city. Lots of people go sightseeing there every year. But air pollution is a problem in the city center.
HONG KONG, CHINA This lively city—once a small fishing village—is today an international business center. It is an interesting mix of East and West, old and new. Modern tall buildings are next to small temples (庙宇). Popular nightclubs are close to traditional teahouses. Busy people fill the streets at all hours of the day. But outside the city, there are parks for walking or relaxing. Hong Kong is famous for its wonderful native dishes. There’s also food from Europe, North America, and other parts of Asia. However, this small city has a large population of nearly seven million! That’s why housing is often very expensive. Traffic and air pollution are also a problem.Which of the following is NOT mentioned about San Jose?
| A．The weather. | B．The mountains. | C．The air. | D．The traffic. |
What makes Hong Kong the world’s best according to this passage?
| A．The lively city and the wonderful dishes. | |
| B．The large population and the traffic. | |
| C．The expensive housing. | D．The beautiful temples. |
The writer thinks housing in Hong Kong is expensive because ________.
| A．it is a small fishing village | B．it is a mix of East and West |
| C．it is a beautiful city | D．there are too many people in the city |
What do the two cities have in common?
| A．They both have beautiful mountains. | B．They both have a large population. |
| C．Air pollution is a problem in both. | D．They are both crowded. |
From the passage, we can know that .
| A．San Jose and Hong Kong are the only two cities of the world’s best |
| B．San Jose has more natural sights than Hong Kong does |
| C．the weather in both cities is fine |
| D．San Jose used to be small fishing village |
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