Nature is full of color, from rainbows and roses to butterfly wings and peacock tails. Even the fruits and vegetables you eat have different colors: blue blueberries, red strawberries, green broccoli, and orange carrots.
Plant and animals often use color to attract attention. The substances responsible for these colors belong to a class of chemical called antioxidants(抗氧化物). Plants make antioxidant to protect themselves from the sun's ultraviolet(紫外线)light.
Ultraviolet light causes chemicals called free radicals(自由基)to form within plant cells. They can destroy parts of plant. Free radicals also have damaging effects on human beings. Some of these effects like wrinkled skin can be seen. The damage is caused by the free radicals attacking cells in our bodies. Certain cancers and heart disease are linked to free radicals.
Our bodies have natural defences for fighting off free radicals. While we are young, our defences are pretty strong. However, they get weaker as we get older. The body’s built-in defences can only go so far without extra help.
The key to fighting free radicals with fruits and vegetables is to mix and match colors. It’s like sunscreen(防晒霜)for the inside of your body. Go for a range of very bright colors. Colorful foods contain hundreds of healthy chemicals not found anywhere else.
Research into how chemicals in blueberries affect the brain's function in rats suggests that these chemicals may help our own brains work more efficiently.
Don't just blame the sun. Ultraviolet light isn't the only source of free radicals. If you breathe polluted air such as smog, automobile exhaust(废气), or wasted gas from a factory, you take in chemicals that also cause such damage. And, the body itself produces free radicals as it processes food.
1.Which of the following NOT true?
A．Antioxidants are responsible for plant colors.
B．Plants use color to attract attention.
C．Antioxidants help free radicals to attack plants.
D．Antioxidants can protect plants from ultraviolet light.
2.In which order do the following facts occur?
a .Wrinkled skin can be seen
b .Ultraviolet light causes free radicals to form
c .Free radicals damage cells in our bodies
d .The sun gives out ultraviolet light
A．a,b,c,d B．d,b,a,c
C．c,a,d,b D．d,b,c,a
3. We need extra help for fighting off free radicals from fruits and vegetables because ____.
A．our defences get weaker as we get older
B．our bodies’ defences are not natural
C．we are too young to defend ourselves
D．our bodies’ built-in defences can only go away
4.Which of the following can NOT cause free radicals to form?
A．Ultraviolet light from the sun
B．Colorful food
C．Polluted air
D．The body itself
小学课时特训系列答案科目：高中英语 来源：2016届湖北省松滋市高二下学期6月月考英语试卷（解析版） 题型：完形填空
完形填空
The cultures of the East and the West really disting?uish from each other a lot.This is because the culture systems are two separate systems ____.
The origin of the eastern cultures is mainly from two countries：China and India.Both of the two cultures are gestated(孕育) by ___.In China，the mother river is the Yellow River ___ the Indian one is the Hindu River.These two cultures were ____ for several thousand years and formed their own styles.Then in the Tang Dynasty of China，the Chinese culture ____ went overseas to Japan，____ into the Japanese society and ___ the Japanese culture nowadays.Though a bit different from the Chinese one，it ____ to the same system.
When the two mother rivers gave birth to the eastern culture，another famous culture was ____ on the Mesopotamian Plain(美索不达米亚平原)—the Mesopotamian Civilization.This civilization later on developed into the cultures of the Ancient Greece and Ancient Rome.And these two are well?known as the ____ of the European culture.____ the Chinese culture，the European one also ____ waters.When the colonists of England ____ in America，their culture went with them over the Atlantic Ocean.So the American culture doesn’t ___ from the European one a lot.
At the same time，the ____ of the language systems adds to the cultural differences.In the East，most languages belong to the pictographic(象形文字的) languages while the Western languages are ____ based on the Latin system，for example，the one I’m using to write this paper.
Other factors like human race difference ____ as well.However，___ the far distance and the steep areas between the East and West，the two cultures seldom ___ until recent centuries.____ they grew up totally in their own ways with almost no interference(干扰) from the other.
1.A.above all B．on the whole C．in all D．in no case
2.A.mountains B．plains C．lakes D．rivers
3.A.or B．for C．while D．when
4.A.developed B．improved C．created D．protected
5.A.suddenly B．quietly C．gradually D．naturally
6.A.mixed B．changed C．decided D．forced
7.A.expanded B．interrupted C．influenced D．shaped
8.A.comes B．belongs C．amounts D．adds
9.A.brought up B．carried out C．given out D．picked up
10.A.result B．sign C．base D．content
11.A.Via B．Except C．With D．Like
12.A.affected B．spread C．crossed D．formed
13.A.joined up B．went up C．broke down D．settled down
14.A.come B．suffer C．result D．differ
15.A.difference B．developmen C．appearance D．feature
16.A.properly B．partl C．simply D．mostly
17.A.last B．count C．reduce D．change
18.A.in terms of B．due to C．as to D．in case of
19.A.transform B．display C．communicate D．distinguish
20.A.Furthermore B．Meanwhile C．Therefore D．However
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科目：高中英语 来源：2016届云南玉溪一中学高三下学期第一次月考英语试卷（解析版） 题型：完形填空
完形填空
阅读下面短文，掌握其大意，然后从各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Whenever my child caused me to change my schedule, I thought to myself, “We don’t have time for this.” ________ , the two words I most commonly spoke to my child were: “Hurry up” But my promise to ________was made almost three years ago, and I began my journey to grasp what ________in life. My younger daughter is my living ________ of why I must keep trying. In fact, the other day, she reminded me once again.
The two of us had taken a bike ride to the ________ . After buying a cool treat for my daughter, she sat down at a table in ________ admiring the ice cream she held in her hand. Suddenly a look of worry ________ on her face. “Do I have to rush, Mama?”
I could have ________.Perhaps the pains of a ________ life don’t ever completely disappear, I thought sadly. As my child looked up at me waiting to know________ she could take her time, I knew I had a(n) ________ . I could sit there________ about the number of times when I rushed my child through life….or I could celebrate the fact that today I’m trying to do things________ . I chose to live in today.
“You don’t have to rush. Just take your time,” I said in a(n) ________ way. Her whole face instantly brightened and her shoulders________ . And so we sat side by side talking about things that interested us.
When she got to the last bite, she held out a spoonful of ice crystals and sweet juice for me. “I ________ the last bite for you, Mama,” my daughter said ________. As I left the icy goodness put out my thirst, I ________ I just got the deal of a lifetime. I gave my child a little time… and ________, she gave me her last bite and reminded me that things taste sweeter and love is ________ to get when you stop rushing through life.
1.A. However B. Instead C. Therefore D. Besides
2.A. speed up B. slow down C. give up D. keep on
3.A. works B. happens C. minds D. matters
4.A. reminder B. message C. example D. guide
5.A. church B. park C. supermarket D. school
6.A. relief B. sorrow. C. advance D. delight
7.A. brought in B. turned up C. went by D. made up
8.A. cried B. hated C. wondered D. regretted
9.A. difficult B. desperate C. hurried D. terrified
10.A. when B. if C. how D. what
11.A. duty B. chance C. choice D. idea
12.A. thinking B. complaining C. worrying D. talking
13.A. differently B. vividly C. perfectly D. casually
14.A. angry B. obvious C. gentle D. cautious
15.A. raised B. relaxed C. shook D. trembled
16.A. saved B. tasted C. purchased D. rushed
17.A. frequently B. carefully C. proudly D. slowly
18.A. realized B. imagined C. expected D. remembered
19.A. in contrast B. in return C. in charge D. in control
20.A. harder B. better C. closer D. easier
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科目：高中英语 来源：2016届四川双流中学高三10月月考英语试卷（解析版） 题型：完形填空
阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
Around twenty years ago, I was going through hard times. I couldn’t find a 1. (satisfy) job. To my shame, I had to drive a school bus to make ends meet. One afternoon, while 2. (drive) through a suburban neighborhood, I was 3. sad that I kept asking myself, “Why has my life become so hard?” “What’s wrong with the world?” Then I pulled over the bus to drop off a little girl. As she passed, she 4. (hand) me a pretty earring, saying she found it 5. the floor and I should keep it in case the owner came to look for it. In the evening, the owner did come to look for her earring. When I gave it to her, she got excited and said, “Thanks, you are a 6. (really) gentleman.” I told her that she should thank the little girl 7. had found it. She said, “Yes, and you are a good driver, too. 8. a lovely world it is!” Then she left with satisfaction. I 9. (touch) by her words, I had thought something was wrong with the world just because of my poor condition. In fact, 10. was wrong with the world. I should change my attitude towards life.
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科目：高中英语 来源：2016届黑龙江大庆一中高三下学期开学考英语试卷（解析版） 题型：短文改错
短文改错
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处，每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均限一词。
2.只允许修改10处，多者（从第11处起）不计分。
Recently, as the development of the Internet, there is a kind of language calling the Web Language. The other day our class had a discussion about if we should welcome the Web Language.
Forty percent of the students think it ridiculous. They argue that it does no good help people communicate, nor is it useful for learning languages. Beside, it'll make Chinese more standard and pure, finally ruining our mother tongue. However, 69% of our class is fond of it. They think it is simple, convenient and helpful in expressing them.What's more, it may make the language more interesting.
Personally, it’s not good habit to use the Web Language. It may be popular, but you may also make yourself be misunderstood.
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科目：高中英语 来源：2016届山东潍坊一中高三下学期起初考试英语试卷（解析版） 题型：语法填空
阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
I always have my own ways to learn English. First, I always read the text in advance so that I can know what I must pay much attention to in class. 1.______ my delight, when my teacher raises a question, I know how to answer more often. And whenever I answer a question 2._____ (correct), I have a strong sense of achievement.
Besides, I always try to take notes in class. Important language points, grammar rules, useful 3.___ (express) and key words are4.____ we want to take down. After class, I organize the notes so that I can have a better5._______ (understand) of them. Of course, I will certainly read aloud the notes in the morning.
To develop my interest in English, after class I 6._____ (wide) read English materials. By this means I can also develop my ability of reading.
7.____ (chat) with my teachers and classmates is also one of my ways to learn English. We often talk8.____ English about different topics concerning friendship, sports, etc. Free expression in English always 9.____ (give) me a sense of pride, 10._____ in turn inspires me to learn English better.
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科目：高中英语 来源：2015-2016学年浙江温州中学高二上学期期末英语试卷（解析版） 题型：完形填空
完形填空
阅读下面短文， 掌握其大意，然后从1～20各题所给的四个选项(A、B、C和D)中，选出最佳选项。
We live in a fast-paced and anxiety-filled world that often times seems to shift beneath our feet. Thus we are sometimes affected by fears or anxiety impacting our life. For as long as I could remember I had struggled with anxiety. After I left university, I made friends with a Moroccan woman at work. One day she invited me to ________ her and her family back home. I wanted to, but I would have to travel there ________ and I knew we would be in a very rural area. How would I cope with my ________ ?
Then one day it ________to me that I had a life to live. I could choose to let anxiety________me or I could go to Morocco and ________ something different. I was 23 years old and had never been out of the UK alone. The journey to Morocco________ something inside me. I managed to cope with my anxiety. The sense of ________ was overwhelming and still to this day when I get afraid of going somewhere alone, I remember how ________it felt when I arrived in Morocco.
Upon arrival I was so ________ for the generous welcome I received. My friend’s family had arranged a welcome party. The people were so loving toward me. As a moment of ________ felt in a faraway village, this reminded me that I was “good enough”, which helped to ________ my anxiety.
Waking up the next day, in the morning light, I saw the area where we were. I was________by how rural it was – and the realization that these people had very few ________.
In the days afterwards, I traveled around Morocco. We went to Marrakesh and ________ the Atlas mountains. We had the most amazing food – lots of fresh fruits and vegetables.
At the end of my ________ something inside me had changed. I realized I had not felt anxious for nearly two weeks.
Experiencing a different culture far away from home helped me to realize what is important in life, what really________ , and with that my anxiety ________ . When I returned home I was much more active in ________ my anxiety. Working with people, helping them________ their anxiety, is how I can share the love I found in Morocco.
1.A. send B. consult C. call D. visit
2.A. alone B. soon C. free D. safe
3.A. work B. curiosity C. homesickness D. worries
4.A. appeared B. hit C. struck D. occurred
5.A. impress B. control C. reach D. persuade
6.A. enjoy B. experience C. take D. experiment
7.A. changed B. moved C. supported D. impressed
8.A. achievement B. fear C. disappointment D. embarrassment
9.A. good B. ashamed C. afraid D. proud
10.A. sorry B. confused C. confident D. thankful
11.A. doubt B. luck C. love D. surprise
12.A. improve B. hold C. protect D. reduce
13.A. inspired B. moved C. pleased D. shocked
14.A. lands B. difficulties C. resources D. friends
15.A. discovered B. explored C. examined D. recognized
16.A. opportunity B. rush C. stay D. life
17.A. rules B. exists C. matters D. hurts
18.A. disappeared B. expanded C. remained D. removed
19.A. expressing B. challenging C. forgetting D. remembering
20.A. drop B. notice C. pass D. overcome
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科目：高中英语 来源：2015-2016学年浙江温州中学高一上学期期末英语试卷（解析版） 题型：单项填空
I bought a shirt because it was not only good ______ but also reasonable in price.
A. of quality B. in quality
C. of a quality D. in a quality
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科目：高中英语 来源：2014-2015学年天津静海县第一中学高三上学期期末考试英语试卷（解析版） 题型：单项填空
I would rather I________ with her about it, but I didn’t control my feelings at that time.
A. didn’t argue B. hadn’t argued
C. wouldn’t argue D. not have argued
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