题目内容
COOL INVENTIONS
CHARGE ON THE GO
From school to band practice, the Venturi Eclectic is an Earth-friendly way to get where you want to go. This battery-powered, zero-emission(meaning it doesn’t pollute the air) vehicle runs mainly on renewable energy. Solar panels on the Eclectic’s roof absorb sun rays when you’re driving. On windy days, you can connect a machine to the car’s roof collects energy from the wind while you’re parked. The Eclectic’s top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged. Zipping （迅速行进）round the neighborhood has never been better.
WATER CLOCK
Here’s an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock’s tank（箱）with water, add some lemon juice, and the clock will display the time without the need for environmentally harmful batteries. There are two sets of metal electrodes（电极）inside the water tank. Water contains ions（离子）that carry negative and positive charges. These ions complete a charge between the electrodes creating enough energy to power the clock. Just refill the tank every few weeks, and this clock will keep on ticking.
LAND ROCKET
Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the 1,000-mile-an-hour barrier. (The current record is 763 miles an hour.) a concept for now, the rocket-shaped car gets its initial push to 350 miles an hour from a jet engine. Then a rocket fires up, pushing the SSC past 1,000 miles an hour. In order to keep the car streamlined（流线型的）the driver lies back at a 45-degree angle.
COOL CAMERA
You’re having a blast at your friend’s birthday party. But when it’s time to bring out the cake, everyone crowds around, blocking your view. No worries. Throw the Triops into the air, and this clever camera captures the view from above. The Triops can take three pictures at once, each from different angles. You can also record sounds and command the Triops to start shooting whenever it hears that noise. That’s one smart camera.
1．According to the passage, the Venturi Eclectic______.
A．is popular with businessmen
B．is suitable for a long trip
C．can turn wind into energy
D．has only a little gas emission
2．What is the common characteristic of the Venturi Eclectic and the Bedol Water-powered Clock?
A．They don’t need batteries.
B．They are difficult to operate
C．They can be powered by water
D．They are environmentally friendly
3．The underlined phrase “having a blast” in the last paragraph means______.
A．looking at a picture B．enjoying yourself
C．blowing out a candle D．recording sounds
4．Which of the following is TRUE according to the passage?
A．The Triops in sensitive to sounds.
B．The driver of the SSC must be of great size.
C．The color of the Bedol Water-powered Clock is like that of lemon
D．The SSC doesn’t have anything to do with a rocket actually.
【小题1】C
【小题2】D
【小题3】B
【小题4】A
解析
智趣寒假作业云南科技出版社系列答案Celebrating sleep
World Sleep Day, observed on 21 March, was created to bring attention to the growing number of sleep problems worldwide. Sleep is a natural part of human life, but many people in the modern world ignore its importance. As a result, sleep problems are increasingly common.
In 2002, scientists at the University of Athens in Greece conducted a survey of over 35,000 people in 10 countries around the world, including China, Belgium and South Africa. Of the people that responded to the survey, 24 percent said that they did not sleep well, and based on their responses, 31.6 percent were diagnosed with insomnia (失眠) and another 17.5 percent were diagnosed with borderline insomnia. In addition, 30.7 percent of survey respondents reported visiting a doctor for help with sleep problems and 11.6 percent said that they felt very sleepy during the day.
Overall, the survey found that many people suffer from the effects of poor quality sleep, some examples of which are being unable to fall asleep and waking up in the middle of the night. The main factors causing these problems are pressure from school or work and a fast pace of life, but noise pollution and light pollution also interfere with sleep and contribute to poor quality sleep. The survey’s findings are particularly troubling because large numbers of people were found to have difficulty sleeping at night. The shortterm effects of this are tiredness and trouble concentrating. If this happens for a long time, the risk of gaining weight and having a heart attack may increase.
There are many things you can do to improve the quality of your sleep. First, you should have regular sleep habits. Try to go to bed and wake up around the same time each day. You also need to make your bedroom a cool, dark, quiet place to sleep so that heat, light and noise do not disturb you. At night, you should also avoid things that contain caffeine, such as chocolate, coffee, tea and many soft drinks, as caffeine may keep you from sleeping.
Getting a good night’s sleep is important for everyone. By following the advice above, you can rest better at night and work better during the day.
Title: Celebrating Sleep
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Topic |
Content |
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World Sleep Day |
Owing to 1.________ of the importance of sleep, people celebrated World Sleep Day, bringing attention to the increasing problems of sleep. |
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Responses of the survey |
Of 35,000 people in 10 countries in the world, there were 24% of the people2._______ from sleeplessness. 31.6 % were diagnosed with insomnia and another 17.5% were on the edge of insomnia. The 3.________ of the people feeling sleepy during the day is 11.6. 30.7 % reported 4._______ to a doctor for sleep problems. |
|
5._______ causing sleep problems & their consequences |
Under 6._______ from school or work, people may have sleep problems. Poor quality sleep also 7._______ from noise or light pollution. Feeling tired and sleepy, people have difficulty 8._______ on what they are doing. It is likely that sleepless people easily put on weight and have a heart attack. |
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9._______ to take to improve sleep quality |
Have regular sleep habits. Make your bedroom cool, dark and quiet. Avoid things 10._______ caffeine. |