In the future，people may travel to Mars by water-powered spaceship!Today's spaceships are fine for getting things into space，but they are not so good at travelling long distances.These spaceships burn chemical fuels （燃料） and they are very expensive.Scientists say that a water-powered spaceship could make the trip to Mars much cheaper.The idea is just in the planning stages（階段） now，but scientists think such a spaceship could be developed soon.The key to the water-powered spaceship is the engine （發(fā)動機）.Regular engines push spaceships by burning fuel.The water engine will use steam，created by solar panels （太陽能板） that heat water to a high temperature.Of course，the spaceship will have to carry a lot of water for the long trip to Mars.
Today's spaceships could not carry that much water.But scientists think that a spaceship blown up like a balloon （氣球）will be able to.
One US company has already developed a spaceship like this.These spaceships are made of a strong material （材料）.Two of them have already been sent up into space，using rockets and then later filled with air. "Balloon" spaceships could be very large and carry enough water for a long trip.With the "Balloon" spaceships，enough water could be carried to power （驅(qū)動）the engines and grow food during the trip.And the people on the spaceship might even get to take a hot bath!
Scientists say the biggest advantage of such a spaceship would be cost.The "Balloon" spaceship uses water to push it through space and costs about one thirtieth of a normal spaceship.Such savings naturally encourage continued research into "Balloon" spaceships and water engines.If these scientists are correct，we may soon be on our way to Mars in a spaceship powered by water.
（1）What's the key to the water-powered spaceship？
The engine.The engine.
（2）According to scientists，how can the future spaceship carry much water？
A spaceship blown up like a balloon will be able to.A spaceship blown up like a balloon will be able to.
（3）What can water do for the spaceship trip？
Water can power the engines，grow food and take hot baths.Water can power the engines，grow food and take hot baths.
（4）What do scientists think of the water-powered spaceship？
Low cost.Low cost.
（5）What's the main idea of this passage？
Water-powered spaceship.Water-powered spaceship.
【答案】The engine.；A spaceship blown up like a balloon will be able to.；Water can power the engines，grow food and take hot baths.；Low cost.；Water-powered spaceship.
【解答】
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發(fā)布：2024/6/27 10:35:59組卷：1引用：1難度：0.5
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Here are five ways for teens to improve their ability to balance their emotions（情緒）.A.It also helps create a sense of achievement.
B.That can be true even if the strong feelings are good ones.
C.It is harder to deal with strong emotional challenges.
D.Only less than nine percent of teens get enough sleep.
E.Artistic expression is a powerful way for teens to manage emotions.
F.Then they can try taking a few moments each day to practise this method of calming down.
Keeping enough Sleep
Getting more sleep improves the way teens feel when they're awake.However，one study showed a surprising result.（1）
Doing physical exercise
Physical activities are helpful for teenagers.Exercise helps produce a certain chemical which can do good to emotions.（2）In this way，teens ' self- confidence is improved.
Developing creativity
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Trying meditation（冥想）
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Learning to ride the wave
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2．The 2022 Hangzhou Asian Games has been put off and will be held from September 23 to October 8，2023.It will be a good chance for Chinese to watch some games during the National Day holiday.If you'd like to watch games in Hangzhou，here are some rules for you.
閱讀以上材料，根據(jù)其內(nèi)容回答其后各個小題。
ArcherySit at the back or on either side of the field.
Keep quiet during the match.Turn off your cellphone or keep it silent.
Do not use the flash on your camera or your phone.
When the athletes are trying to shoot the target（射擊靶子），keep your voice down.
BasketballYou cannot bring drinks in glass bottles.
Keep the cheers down at important moments.Do not use the camera flash.
If you easily get nervous，bring some snacks.Keep your mouth moving to calm you down.
▲Audience（觀眾）should keep off the track（跑道）.Control your pets.
Athletes might look tired and thirsty，but do not hand them water or anything else.
If an athlete falls，do not touch or help him.
（1）When will the 2022 Hangzhou Asian Games begin？
A．On September 8，2023.
B．On September 23，2023.
C．On October 8，2023.
D．On October 23，2023.
（2）What does the underlined word"flash"mean in Chinese？
A．閃光燈
B．外殼
C．屏幕
D．鏡片
（3）What would be the most suitable to replace ▲in the picture？
A．Football.
B．Running.
C．Roller skating.
D．Cycling.
（4）Which of the following is TRUE according to the passage？
A．You can use the camera flash during the basketball game.
B．You should hand the athletes water when they feel thirsty.
C．You shouldn't shout loudly when watching the archery game.
D．You can't eat anything when you're watching the basketball game.
（5）What is the passage mainly about？
A．Some most popular games.
B．Introduction to some games.
C．The best time to watch games.
D．Rules for watching some games.發(fā)布：2024/12/27 18:30:2組卷：11引用：4難度：0.5 -
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