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科目:初中英語(yǔ) 來(lái)源:不詳 題型:聽力題
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科目:初中英語(yǔ) 來(lái)源:不詳 題型:完形填空
We are now living in the modern society. Most of the energy we use for heating, lighting, transportation and manufacturing (制造業(yè)) comes from fossil (化石) fuels. These are carbon-based fuels from oil, coal and natural gas. When we burn these fuels we release heat which p__小題1:
___ the energy.小題2:
___ Effect. When we burn fossil fuels they produce carbon dioxide which causes global warming. Secondly, when we have used up all our coal, oil and natural gas, we will have n__小題3:
__ left to burn. Thirdly, they are not very efficient. The internal combustion engine (內(nèi)燃機(jī)) that we use in most cars, trucks and buses, for example, is only about 14% efficient.小題4:
__ surface is water and water is made of hydrogen and oxygen. There is an almost unlimited supply of hydrogen. Secondly, burning hydrogen does not cause global warming. Thirdly, it is much more efficient than carbon-based fuels.小題5:
___, and there is the difficulty of storing it. It can be stored under pressure but high pressure tanks are far from safe. It can also be stored as a liquid but only at extremely low temperatures. It seems likely, therefore, that there will have to be a completely new technology before hydrogen replaces fossil fuels. S__小題6:
___ these problems is an urgent (急迫的) matter. Although China, India and Australia have huge amounts of cheap coal, and there are still l__小題7:
___ oil and gas reserves(儲(chǔ)藏量) elsewhere, the effects on the planet’s climate will be bad if they are used.查看答案和解析>>
科目:初中英語(yǔ) 來(lái)源:不詳 題型:完形填空
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科目:初中英語(yǔ) 來(lái)源:不詳 題型:單選題
A.He | B.His | C.Him | D.Himself |
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科目:初中英語(yǔ) 來(lái)源:不詳 題型:單選題
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科目:初中英語(yǔ) 來(lái)源:不詳 題型:完形填空
Today, there are plenty of opportunities(機(jī)會(huì)) to get to know people from otherc 小題1:
. Don’t just stare at your shoes, go and say “Hi”. These ice-breakers will help you get through the embarrassing(尷尬的)moments:小題2:
in Britain is unpredictable (不可預(yù)測(cè)的), so, it’s one of the topics the British talk a lot about. And there’s a s 小題3:
rule about weather conversation: just say, “Yes” whether you agree with the person’s idea on the weather or not. That’s because the British s 小題4:
a conversation using the weather so that they can find common ground and move on to something else.小題5:
holiday?” To get close to a French student, the safest way is to ask about his or her l 小題6:
holiday. French students enjoy a 10-to-15-day holiday every two months. And the French are famous for their conversations over a cup of coffee. Then, all you need to do is keep your ears o 小題7:
when the conversation starts.小題8:
. They go to see movies, visit friends’ houses or go shopping. S 小題9:
“What did/will you do on the weekend?” is a good way to turn the conversation on and get to know more about your new f 小題10:
.查看答案和解析>>
科目:初中英語(yǔ) 來(lái)源:不詳 題型:聽力題
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