The way to see water's temperature Here's how to tell whether a glass contains(容纳)hot water or cold water-without ever touching it! | ||
You'll need •2 drinking glasses that are exactly alike •Ice cubes(块) •Adult helper •Bathtub(浴缸)or shower •Pencil and paper | 1.Fill one glass with cold tap water and cool it with ice cubes. Don't use a lot of ice; just cool it a little. 2.Fill the other glass with very hot water. 3.Pour both glasses out into the tub at the same tirme and speed. Repeat this process(过程)a fewtimes,and watch closely each time. 4.Ask your helper to fill the glasses again and not tell you which is which. When you see the water splash in the tub.guess which one is the hot water. 5. Repeat several times. Keep score on your paper. You should be able to guess correctly more than half the time. | |
Cold water is more dense(稠密的)than hot water.so a cup of cold water is just a little bit heavier than a cup of hot water. | When you pour hot water onto a hard surface,it splashes(溅起)around more than the cold water because it's less dense. SOURCE:TNS | |
1.Where can you find such a picture? ______
A.A news report B.A story book
C.A comic D.A science poster
2.What can we learn from the picture? ______
A.You can do it without others' help.
B.At least two different drinking glasses are needed.
C.Cold water seems much heavier than hot water.
D.You don't have to touch the water to find it's cold or hot.
3.What is the way to see temperature according to the picture? ______
A.By watching. B.By weighing. C.By feeling. D.By guessing.
九年级英语阅读单选中等难度题
The way to see water's temperature Here's how to tell whether a glass contains(容纳)hot water or cold water-without ever touching it! | ||
You'll need •2 drinking glasses that are exactly alike •Ice cubes(块) •Adult helper •Bathtub(浴缸)or shower •Pencil and paper | 1.Fill one glass with cold tap water and cool it with ice cubes. Don't use a lot of ice; just cool it a little. 2.Fill the other glass with very hot water. 3.Pour both glasses out into the tub at the same tirme and speed. Repeat this process(过程)a fewtimes,and watch closely each time. 4.Ask your helper to fill the glasses again and not tell you which is which. When you see the water splash in the tub.guess which one is the hot water. 5. Repeat several times. Keep score on your paper. You should be able to guess correctly more than half the time. | |
Cold water is more dense(稠密的)than hot water.so a cup of cold water is just a little bit heavier than a cup of hot water. | When you pour hot water onto a hard surface,it splashes(溅起)around more than the cold water because it's less dense. SOURCE:TNS | |
1.Where can you find such a picture? ______
A.A news report B.A story book
C.A comic D.A science poster
2.What can we learn from the picture? ______
A.You can do it without others' help.
B.At least two different drinking glasses are needed.
C.Cold water seems much heavier than hot water.
D.You don't have to touch the water to find it's cold or hot.
3.What is the way to see temperature according to the picture? ______
A.By watching. B.By weighing. C.By feeling. D.By guessing.
九年级英语阅读单选中等难度题查看答案及解析
A strong EI Nino(厄尔尼诺暖流)causes the temperature around the world to rise. “That’s how we will see the influences of climate (气候) change", says Michael Mann, a climate scientist at Penn State University.
The Great Barrier Reef (礁) is far beyond its name. Coral (珊瑚) of all shapes, sizes and colors covers more than 130,000 square meters off the coast of Australia, making it the world's largest reef system with many amazing kinds of life under the sea.
But today the Great Barrier Reef is dying. The waters around the reef become warmer. That warming then causes the bleaching(白化).The bleaching takes the color and the life out of the coral. Bleaching happens when the warm water and pollution drive away the living things that live on the coral and give it color. Within weeks, the reef could die, leaving behind a forest of lifeless, bone white coral. Scientists believe the bleaching may kill more than 15% of the world’s coral. The Great Barrier Reef isn't alone. This is the longest bleaching event ever recorded, " says David Kline, a scientist.
But a bigger worry may be what the bleaching suggests about future climate(气候)change. Climate change may be slow sometimes, but other times it takes great leaps forward, "says Steve Palumbi, an ocean scientist at Stanford University.
Local solutions like reducing fishing and cleaning up, pollution can help slow reef loss, but scientists say a global(8)problem requires a global solution. Nearly 200 countries agreed last year to work to keep global temperatures from rising more than 3. 6F by 2100, but that goal will be hard to reach.
1.The underlined word “It” in Paragraph 2 refers to (指代)_____________.
A. the country –Australia B. the coast of Australia
C. the coral under the sea D. The Great Barrier Reef.
2.What does the writer mean by saying "The Great Barrier Reef isn’t alone. "?
A. There are many other reefs beside the Great Barrier Reef.
B. There are kinds of living things on the Great Barrier Reef.
C. The Great Barrier Reef is becoming warmer and warmer.
D. Some other reefs have the same problem as the Great Barrier Reef.
3.After reading the article, you can learn that__________.
A. the climate is changing quickly within a short time
B. it's hard to see colorful coral when bleaching happens
C. the global warming is the only reason for the death of reefs
D. lots of countries found it easy to make the temperature low
4.What's the writer’s main purpose in writing the article?
A. To draw more attention to global warming B. To explain how bleaching happens.
C. To advise Australians to solve global warming. D. To explain why the world gets warm
九年级英语阅读单选中等难度题查看答案及解析
—Excuse me, could you please tell me the way to the ? I have had too much water.
—Go along the street and you will find one.
A.bedroom B.living room
C.classroom D.restroom
九年级英语单项填空中等难度题查看答案及解析
—Excuse me, could you please tell me the way to the ? I have had too much water.
—Go along the street and you will find one.
A.bedroom B.living room C.classroom D.restroom
九年级英语单项填空中等难度题查看答案及解析
Can you tell me the way to the railway station?
A.where is | B.how can I get to | C.the way at | D.how to get to |
九年级英语单项填空中等难度题查看答案及解析
—Excuse me, can you tell me the way to the nearest underground station?
—Walk straight on you see a white building. It’s right there.
A. though B. since C. until D. if
九年级英语单选题中等难度题查看答案及解析
Can you swim? Yes? Well, how can you learn to swim? I think the best way is to go into the water and learn. I’m afraid you’ll never learn to swim just by reading books about swimming or looking at others swimming. It’s the same with the English study.
Listening and speaking are very important for beginners. We can listen to English programs on the radio. Just be relaxed, try to catch every word. Somebody may be a good listener but he doesn’t dare to speak. He’s afraid of making mistakes. You know we sometimes make mistakes when we speak Chinese. Don’t be afraid. We must be brave. If you really want to learn English well, you must try to speak with people who knows English. Remember, the more you speak, the fewer mistakes you’ll make.
Reading and writing are more important for senior school students. First we must choose the books we’re interested in. A lot of reading will improve your language sense.
Easier said than done. Well, let’s do more practice from now on. I’m sure you’ll learn English well in this way.
1.You can learn to swim by __________.
A. going into the river and learning
B. looking at others swimming
C. having lessons on it
D. reading books about it
2.We can listen to English ______, according to the passage.
A. by train B. on the radio
C. every minute D. now and then
3.What will you do with mistakes when you speak? __________.
A. Don’t make mistakes. B.Study hard
C. Try not to speak English D.Don’t be afraid.
4.What’s more important for senior school students? __________.
A. Listening. B. Speaking.
C. Reading and writing. D. Learning.
5.We should learn English by __________.
A. listening and speaking B. reading and writing
C. swimming D. A and B
九年级英语阅读理解中等难度题查看答案及解析
—Could you tell me __________?
—Sorry, I don’t know.
A. how can I get to the Water Sports Center
B. when will Mr. Black come back
C. why is Tom late for class
D. where Mr. Green has gone
九年级英语单项填空中等难度题查看答案及解析
Excuse me, could you tell me ?
A. which is the way to the restroom.
B. where is the restroom
C. how can I get to the restroom
D. is there a restroom near here
九年级英语单项填空简单题查看答案及解析
—Excuse me,Miss Smith. Could you tell me how to improve my spoken English?
—OK. The best way is to practice *
A. as soon as possible B. as quickly as possible
C. as much as possible D. as clear as possible
九年级英语单项填空中等难度题查看答案及解析