It is easier to float in the ocean than it is to float in a swimming pool. Do you know why?
Ocean water is full of salt— and salt water can hold up more weight than fresh water. See for yourself!
You Will Need:
● 3 cups of warm water
● Measuring cup (量杯)
● Wide-mouthed jar
● Salt
● Spoon
● Raw (生的)potato
You Will Do:
1. Pour 1.5 cups of warm water into the jar.
2. Add 1/3 cup of salt.
3. Stir(搅拌) until the salt is completely dissolved.
4. Add another 1.5 cups of water. Pour it slowly over the back of the spoon into the jar so that the two liquids will not mix together.
5. Gently place the potato into the jar. Do not drop it.
What Will Happen:
The potato will sink— but only halfway!
Why?
Salt water is heavier than fresh water, so it will stay on the bottom. The fresh water will remain on top.
The potato is heavier than the fresh water, but it is lighter than the salt water. That is why the potato will sink halfway down.
1.In the experiment, what should you do right after you pour the water over the spoon?
A. Add the salt to the water. B. Stir the salt into the water.
C. Place the potato in the jar. D. Pour warm water into thejar.
2.In Step 4 of the experiment, why do you pour the water over the spoon “slowly”?
A. It is easier to see what you are doing.
B. It pushes the fresh water to the bottom.
C. It will keep the water from coming out.
D. It will keep the liquids from mixing together.
3.In which step of the experiment do you add the salt?
A. Step 1 B. Step 2
C. Step 3 D. Step 4
高一英语阅读理解中等难度题
It is easier to float in the ocean than it is to float in a swimming pool. Do you know why?
Ocean water is full of salt— and salt water can hold up more weight than fresh water. See for yourself!
You Will Need:
● 3 cups of warm water
● Measuring cup
● Wide-mouthed jar
● Salt
● Spoon
● Raw potato
You Will Do:
1. Pour 1.5 cups of warm water into the jar.
2. Add 1/3 cup of salt.
3. Stir(搅拌) until the salt is completely dissolved.
4. Add another 1.5 cups of water. Pour it slowly over the back of the spoon into the jar so that the two liquid will not mix together.
5. Gently place the potato into the jar. Do not drop it.
What Will Happen:
The potato will sink— but only halfway!
Why?
Salt water is heavier than fresh water, so it will stay on the bottom. The fresh water will remain on top.
The potato is heavier than the fresh water, but it is lighter than the salt water. That is why the potato will sink halfway down.
1.In which step of the experiment do you add the salt?
A. Step 1. B. Step 2.
C. Step 3. D. Step 4.
2.In Step 4 of the experiment, why do you pour the water over the spoon “slowly”?
A. It is easier to see what you are doing.
B. It pushes the fresh water to the bottom.
C. It will keep the water from coming out.
D. It will keep the liquids from mixing together.
3.In the experiment, what should you do right after you pour the water over the spoon?
A. Add the salt to the water. B. Stir the salt into the water.
C. Place the potato in the jar. D. Pour warm water into the jar.
高一英语阅读理解中等难度题查看答案及解析
It is easier to float in the ocean than it is to float in a swimming pool. Do you know why?
Ocean water is full of salt— and salt water can hold up more weight than fresh water. See for yourself!
You Will Need:
● 3 cups of warm water
● Measuring cup (量杯)
● Wide-mouthed jar
● Salt
● Spoon
● Raw (生的)potato
You Will Do:
1. Pour 1.5 cups of warm water into the jar.
2. Add 1/3 cup of salt.
3. Stir(搅拌) until the salt is completely dissolved.
4. Add another 1.5 cups of water. Pour it slowly over the back of the spoon into the jar so that the two liquids will not mix together.
5. Gently place the potato into the jar. Do not drop it.
What Will Happen:
The potato will sink— but only halfway!
Why?
Salt water is heavier than fresh water, so it will stay on the bottom. The fresh water will remain on top.
The potato is heavier than the fresh water, but it is lighter than the salt water. That is why the potato will sink halfway down.
1.In the experiment, what should you do right after you pour the water over the spoon?
A. Add the salt to the water. B. Stir the salt into the water.
C. Place the potato in the jar. D. Pour warm water into thejar.
2.In Step 4 of the experiment, why do you pour the water over the spoon “slowly”?
A. It is easier to see what you are doing.
B. It pushes the fresh water to the bottom.
C. It will keep the water from coming out.
D. It will keep the liquids from mixing together.
3.In which step of the experiment do you add the salt?
A. Step 1 B. Step 2
C. Step 3 D. Step 4
高一英语阅读理解中等难度题查看答案及解析
The earth is our home. We must take care of it. Life today is easier than it was _____ years ago, but it has brought some new problems. One of the biggest problems is pollution. We can see it, smell it, drink it and even hear it.
Man has polluted the _____. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so _____ people. When the land was used up or the river was not clean in a place, man went to _____ place. Now man is slowly polluting the whole world.
_____ pollution is still the most serious, it’s bad for _____ things in the world. Many countries don’t let people burn _____ for air in the houses and factories in the city. Pollution by SO2 is now the most dangerous kind of air pollution. It’s caused by heavy traffic. People say it’s _____ to ride bikes. When you are riding, there is no pollution. But even in developed countries, most people don’t go to work by bike. It’s not because bikes are expensive or people are tired if they ride to work. It’s because the number of cars on the roads becomes larger. So more people _____ their bikes and go to work by car, then things are getting worse and worse. We should have special roads only for bikes and make it ______ difficult and expensive for drivers to take their cars into the city that they will go back to using their bikes.
1.A. hundred B. hundreds of C. hundred of D. hundreds
2.A. moon B. star C. earth D. sun
3.A. lot B. little C. many D. much
4.A. others B. the others C. the other D. another
5.A. Air B. Food C. Water D. Noise
6.A. life B. live C. living D. lives
7.A. something bad B. bad something C. something good D. good something
8.A. least B. best C. most D. worst
9.A. put on B. look at C. put away D. look up
10.A. suite B. such C. very D. so
高一英语完形填空中等难度题查看答案及解析
.
______ it is to have a bath in the ocean in hot summer.
A.How fun | B.How a fun | C.What a fun | D.What fun |
高一英语单项填空简单题查看答案及解析
There is a Malay saying: “It is easier to teach a stupid person than a ______ one”.
A.useless | B.selfish | C.stubborn | D.mean |
高一英语单项填空中等难度题查看答案及解析
There is a Malay saying: “It is easier to teach a stupid person than a ______ one”.
A.useless | B.selfish | C.stubborn | D.mean |
高一英语单项填空中等难度题查看答案及解析
There are lots of plastic bags ____ in the river, ____ it very dirty.
A.floating; making B.to float; made
C.being floated; made D.floated; making
高一英语单项填空中等难度题查看答案及解析
The word “music” is easier to use in practice than to explain. Music is a reminder (提醒物) of how things once were, a symbol of how things are and a view of where society is headed. Music can bring us back to memories we wish to never forget, or bring us hope when we feel that all is lost. According to Nietzsche, “Nothing is worth living for without music.” And Albert Einstein once said, “Without the music education in my childhood, I would succeed in nothing.”
Most of us enjoy different kinds of music just to entertain (娱乐). Are there other reasons for us to listen to music? Some types of music can make us feel relaxed. After a long workday, classical music or certain types of jazz can physically relax our bodies and take our attention away from the cares of the day—at least for a while. On the other hand, loud, fast music with a strong beat can excite us. In fact, sometimes we may prefer one kind of music, but at other times, that’s the last thing we want to listen to.
Music also affects our feelings. Movie music can most clearly show this. If you close your eyes in an action movie or a disaster movie, you can pretty much tell what’s happening on the screen by the music alone. The same is true for a love story. Film composers (作曲家) such as John Williams get paid big money for their ability to change your feelings from moment to moment. So what’s going on between you and music? Clearly, music and feelings are closely connected in some non-physical way.
1.Why are Nietzsche and Albert Einstein mentioned in Paragraph 1?
A.To show music helps people succeed. B.To show the development of music.
C.To show the importance of music. D.To show music is everywhere.
2.Which of the following statements would the author agree with?
A.Classical music is more popular than jazz.
B.Entertainment is the whole story of music.
C.An artist’s character decides his music style.
D.People need different music at different times.
3.According to the last paragraph, what is film composers’ ability?
A.They can introduce different music to people.
B.They can produce an effect on people’s feelings.
C.They can connect with people non-physically.
D.They can help people become confident.
4.What’s the best title for the text?
A.The Power of Music B.Different Kinds of music
C.The True Meaning of Music D.The Entertainment Value of music
高一英语阅读理解中等难度题查看答案及解析
In my opinion, life in the twenty-first century is much easier than ____.
A.what used to be | B.that it used to be |
C.it used to be | D.what it used to be |
高一英语单项填空简单题查看答案及解析
Can you imagine a cloud floating in the middle of your room? Do you want to know what it feels like to fly like a bird? Find your answers in Time Magazine's 25 "Best Inventions". Here, we have picked out the most interesting 4 to share with you.
Talking Gloves
Ever felt confused by the sign language used by disabled people? Here is the "helping hand" you need. Four Ukrainian students have created a pair of gloves that helps people with hearing and speech problems communicate with others. The gloves are equipped with sensors that recognize sign language and translate it into text on a smartphone. Then the smartphone changes the text to spoken words.
Google Glasses
Google Glasses are like a computer built into the frame of a pair of glasses. With its 1.3-centimeter display, the glasses allow you to surf the Internet and make calls without even lifting a finger. The glasses also have a camera and GPS mapping system. Users can take and share photos, check maps and surf the Internet just by looking up, down, left and right.
Indoor Clouds
It's not virtual.That's a real world. Dutch artist Smilde managed to create a small but perfect white cloud in the middle of a room using a fog machine. But it required careful planning—the temperature, humidity(湿度)and lighting all had to be just right. Once everything was ready, the cloud formed in the air with the machine. But it only lasted for a short while.
Wingsuits
The suit fulfills your dreams of flying like a bird.Well, not exactly flying, but gliding(滑翔)through the air. It increases the surface area of the human body, which makes it easier for people to float in the air. Fliers wearing wingsuits can glide one kilometer in about 30 seconds.
1.Who will probably be the users of “Talking Gloves”?
A.Disabled people B.Normal people.
C.Trained people. D.Working people.
2.How can users of Google Glasses surf the Internet?
A.By moving the mouse. B.By tapping the keyboard.
C.By moving the eyeballs. D.By pressing the button.
3.Which of the following can help you fly?
A.Talking Gloves. B.Wingsuits.
C.Google Glasses. D.Indoor Clouds.
高一英语阅读理解中等难度题查看答案及解析