.

 -------Mum, I don’t know whether I should take a computer course at weekends or not.

-------- I leave _______ to your own judgment.

A. it          B. what             C. this            D. that

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科目：高中英語 來源： 題型：閱讀理解

Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.

“To provide enough power, we need certain methods with high energy density(密度)”，said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”

Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.

“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”

His new idea is not only in the battery’s size, but also in its semiconductor(半導(dǎo)體). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.

“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶體結(jié)構(gòu)) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”

Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.

1. Which of the following is true of Jae Kwon?

A. He teaches chemistry at MU. 

B. He developed a chemical battery.

C. He is working on a nuclear energy source.

D. He made a breakthrough in computer engineering.

2. Jae Kwon gave examples in Paragraph 4_________.

A. to show chemical batteries are widely applied.

B. to introduce nuclear batteries can be safely used.

C. to describe a nuclear-powered system.

D. to introduce various energy sources.

3. Liquid semiconductor is used to _________.

A. get rid of the radioactive waste  

B. test the power of nuclear batteries.

C. decrease the size of nuclear batteries

D. reduce the damage to lattice structure.

4. According to Jae Kwon, his nuclear battery _______.

A. uses a solid semiconductor       

B. will soon replace the present ones.

C. could be extremely thin          

D. has passed the final test.

5. The text is most probably a ________.

A. science news report        B. book review   

C. newspaper ad               D. science fiction story

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科目：高中英語 來源：2010年山西省臨汾一中高二上學(xué)期學(xué)段考試英語卷 題型：閱讀理解

You must have a favorite line or pet phrase you repeat often in your conversations. Studies say that pet phrases can reflect our changing society and reveal information about a person’s personality. Here are some of the most popular pet phrases among young people.
腦殘---nuts
I love the word and use it whenever I think a person is stupid, or a behavior is crazy. I learned the term from one of my classmates. Once, we saw two high school girls wearing miniskirts on a very cold winter day and my classmate called the two girls “nuts”. I don’t think the word reflects my personality. I use it because it sounds cool.
Diao Yujie, 22, computer science major at Nanjing University.
汗---stunning
I use this word very often. Once, my classmates and I were discussing how amusing QQ is. One guy suddenly burst out, “I have MSN too”. This comment had no relation with the topic we were discussing. I used this word and everybody laughed. I think it is a fantastic word that can change awkwardness to amusement.
Mu Li, 20, journalism major at Beijing Normal University.
暈死---I’m giddy!
I use this word a lot---more often than my classmates. It has became a symbol of me, as my friends sometimes refer to me as the guy who often says the word. I am a person who wants to be different and this word gives me that feeling.
Chen Zhou, 21, Nanjing University.
雷---stunning
I only use this word with my friends. My parents don’t understand it. The word, which is only used among people of my age, is intimate. I think it stands for being young and energetic. And I want to be young forever, so I like the word.
Chen Jianjun, 23, senior at Nanjing University.
【小題1】If a man wearing suit and a tie is climbing a mountain, what can we say to him according to the passage?

A．nutsB．I’m giddy.C．汗---stunningD．雷---stunning
【小題2】What’s the meaning of “pet phrase” in the first paragraph?
A．習(xí)慣用語B．寵物語言C．口頭禪D．座右銘
【小題3】 What’s young people’s attitude to pet phrase?
A．indifferentB．crazyC．reasonableD．a(chǎn)gainst
【小題4】Pet phrase can ________ according to studies.
A．reflect our changing society
B．reveal information about a person’s personality
C．make young people popular
D．both A and B

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科目：高中英語 來源：2014屆福建尤溪一中高三上期入學(xué)考試英語卷（解析版） 題型：閱讀理解

Restoring the quake­hit ecosystems is a question of balancing the interests of the local people and the environment. Rural methane (沼氣) projects can reduce the number of locals taking firewood from the mountainsides. The use of straw as food for animals will ensure that vegetation(草木) can grow. In Sihai township and Dazhuangke village, in Beijing, they now have a forestry coverage of 85% or more, compared to the 30% they had 15 years ago. Back then, land was used very inefficiently: one person would use 20 mu of forest just for firewood. With those pressures on the ecosystem, no amount of spending on reforestation will succeed. Then the government relocated the population and paid those who remained to tend the forest and provide coal. This reduced the pressures on the ecosystem and it was able to recover naturally.

         When an ecosystem has not been pushed past certain limits, it is able to recover on its own. Human involvement should only play a minor role, including after an earthquake. This is particularly the case for sandy grasslands, grasslands deserts, the mountains of the south and the northern sides of mountains in the north. In these areas soil remains and the water, light, heat and nutrients needed are available. Less human involvement is even more appropriate in areas with a small population, where it can avoid money being wasted on ineffective efforts, such as creating forests in dry areas.

         The creation of nature reserves should be a model to allow damaged ecosystems to recover. Funding can start at the national level; centrally­funded nature reserves can enforce environmental protection laws and help to promote the local economy. This will solve the problems of reserves being run to make money. When national reserves are funded, local governments will be able to adopt the same model and provide the funds for nature reserves from their own budgets. The first project should be established in nature reserves hit by the quake; these can then become models for other areas.

1.To restore the quake­hit ecosystem, government should ________.

A. forbid locals from taking firewood from the mountainsides

B. encourage local people to feed their animals just with straw

C. spend large amounts of money relocating the population

D. protect the environment without harming locals' interests

2.The forestry coverage in rural Beijing has increased greatly because ________.

A. pressures on land were reduced         B. a large amount of coal is provided

C. no people live in that area             D. locals take good care of the forest

3.According to the passage ________ play(s) a major role in ecosystem recovery.

A. local people                                                                B. nature itself

C. human involvement                                                 D. government's effort

4.According to the last paragraph, which of the following is NOT true?

A. Nature reserves could be helpful to recover the damaged ecosystems.

B. Centrally­funded nature reserves are beneficial to local economy.

C. Some nature reserves are created for the purpose of making money.

D. The first projects on nature reserves should be set up in quake­hit areas.

 

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科目：高中英語 來源：2014屆吉林通化第一中學(xué)高三第一次月考英語卷（解析版） 題型：閱讀理解

Batteries can power anything from small sensors to large systems．While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves．University of Missouri（MU） researchers are developing a nuclear energy source that is smaller, lighter and more efficient．

“To provide enough power, we need certain methods with high energy density（密度）”，said Jae Kwon, assistant professor of electrical and computer engineering at MU．“The radioisotope（放射性同位素） battery can provide power density that is much higher than chemical batteries．”

Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems （M/NEMS）．Although nuclear batteries can cause concerns, Kwon said they are safe．

“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems．”

His new idea is not only in the battery’s size, but also in its semiconductor（半導(dǎo)體）．Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor．

“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure（晶體結(jié)構(gòu)） of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem．”

Together with J．David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery．In the future, they hope to increase the battery’s power, shrink its size and try with various other materials．Kwon said that battery could be thinner than the thickness of human hair

1.The text is most probably a ________．

A．science news report                   B．book review

C．newspaper ad                     D．science fiction

2.Liquid semiconductor is used to _________．

A．get rid of the radioactive waste

B．test the power of nuclear batteries

C．decrease the size of nuclear batteries

D．reduce the damage to lattice structure

3.According to Jae Kwon, his nuclear battery _______．

A．uses a solid semiconductor        B．will soon replace the present ones

C．could be extremely thin              D．has passed the final test

4.Jae Kwon gave examples in Paragraph 4_________．

A．to show chemical batteries are widely applied

B．to introduce nuclear batteries can be safely used

C．to describe a nuclear-powered system

D．to introduce various energy sources

 

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科目：高中英語 來源：2015屆陜西省高一上學(xué)期期中考試英語試卷（解析版） 題型：書面表達(dá)

從每小題的A .B C .D四個(gè)選項(xiàng)中，找出所給單詞的正確讀音。

1.music    

A．/mu:zik/         B．/m?zik/          C．/mju:zik/         D．/mju:sik/

2.favourite 

A．/fæv?rit/         B．/feiv?rit/         C．/feivu:rit/        D．/fev?rit/

3.trousers  

A．/traus?z/         B．/trauz?s/         C．/tr?z?z/          D．/trauz?z /

4.worry   

A．/w?uri/          B．/w?ri/           C．/w?urei/         D．/w?rei/

5.education  

A．/edju:kei??n/                        B．/edju:kei??n /

C．/ed?ukei?n /                         D．/ed?ukei?n /

 

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