Sunscreens (防晒霜) can offer protection from two types of ultraviolet (UV) rays (紫外线): UVB, which according to the Skin Cancer Foundation, are the chief cause of sunburn and play a key role in the development of skin cancer, and UVA, which get through the skin more deeply and are largely responsible for skin aging and wrinkling, as well as skin cancer risk. The SPF (防晒指数) measurement on sunscreens refers to the UVB protection level — and the number may not mean what you think it does. SPF 15 doesn’t protect you from 15% of UVB rays, just as SPF 100 doesn’t protect you from 100% of the rays. In fact, as you get into the higher numbered SPF sunscreens (think: 50 and above), the difference in UVB protection is actually pretty small.
Theoretically, though the increase in UVB protection with a super-high SPF sunscreen may be not worth considering, it may help, and certainly can’t hurt, to use it — that is, as long as you do so correctly. “The only downside is whether you’re giving yourself a sense of false security,” Dr. Gohara says.
Indeed, as Dr. Wang also pointed out, when people choose increased SPFs, they may actually feel so protected by the product that they finally ignore proper sun protection. “When people use really high SPF products, they tend not to reuse, they tend to stay out in the sun much longer, and they don’t use other protective measures such as clothing and hats,” he says. Regardless of any increase in protection that a high SPF may or may not offer, one thing is certain: It doesn’t give your body a free pass from sunburns, aging, or cancers, and it doesn’t protect you from those things for any greater length of time than the lower SPF options. Both Dr. Wang and Dr. Gohara emphasized that, no matter what the SPF is, it’s important to reapply your sunscreen every two hours.
1.What rays can cause skin cancer according to the text?
A. UVB. UVAC. UVBD. UVA&UVB
2.What can we know about SPF from Paragraph 1?
A. It tells us the UVB protection level.
B. It’s better to use higher numbered SPF.
C. SPA100 means preventing 100% rays.
D. There’s a big difference between SPF 50 and above.
3.Which of the following can replace the underlined word “downside” in Paragraph 2?
A. protectionB. disadvantage
C. resultD. method
4.Why are we advised to reapply our sunscreen every two hours?
A. We choose too low SPF products.
B. The higher SPF can make us stay outside longer.
C. Clothing and hats are not enough for sun protection.
D. It can’t completely protect us from aging, sunburns or cancers.
科目:高中英语 来源:2016届高考试卷分项版解析专题11英语试卷(解析版) 题型:单项填空
Not until I came home last night ________ to bed.
A. Mum did go B. did Mum go
C. went Mum D. Mum went
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科目:高中英语 来源:2016届高考试卷分项版解析专题09英语试卷(解析版) 题型:单项填空
The meaning of the word "nice' changed a few tines it finally came to include the sense "pleasant."
A. before B. after
C. since D. while
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科目:高中英语 来源:2017届新疆兵团农二师华山中学高三上期学前考试英语试卷(解析版) 题型:完形填空
阅读下面短文。从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
Mr Jackson was blind from birth. He owned a fruit ______ on a very busy street. ________ he was visually disabled, he ran his business pretty handsomely. He could see nothing and he could only ________ the things within his reach. _________ he was able to handle it and was content with everything he had.
One day his son came to him. He told Mr Jackson in ___________ that he read in the newspaper of a _________ who could operate on his eyes and allow him to see. The father and son traveled to the doctor and paid for the ________.
After the operation, the doctor asked Mr Jackson, “What is the first thing you are _________ to see when I take the bandages off?” He replied, “I really want to see my beautiful ________ on my stand!”
The doctor and the son _________ Mr Jackson down to the busy street where his fruit stand had been located for so many years. The doctor _________ unwrapped the bandages ________ he could lay his eyes on the beautiful fruit! Mr Jackson was so full of __________ that he could finally see his life’s work—taking care of his fruit! After a few hours of ________ his beautiful fruit stand, he looked down the street both ways and saw there were quite a few fruit stands in both directions. He looked ________ the street and saw many other fruit stands. He spent so much time looking at other people’s fruit stands and ___________ the competition. Soon his own business ________.
From Mr Jackson’s failure, we should know that everyone is a _________ individual with different fingerprints, DNA and thinking. What we need to do is just be ourselves and __________ everyone else to be who they are. Mind our own business and we should never be afraid of _________.
1.A. standB. companyC. storeD.center
2.A. BecauseB. AsC. AlthoughD.When
3.A. rememberB. describeC. imagineD.feel
4.A. ThereforeB. HoweverC. OtherwiseD.Besides
5.A. prideB. doubtC. excitementD.surprise
6.A. doctorB. nurseC. chemistD.volunteer
7.A. informationB. medicineC. serviceD.operation
8.A. nervousB. eagerC. luckyD.afraid
9.A. flowersB. vegetablesC. fruitD.clothing
10.A. sentB. accompaniedC. followedD.invited
11.A. suddenlyB. curiouslyC. firmlyD.carefully
12.A. so thatB. in caseC. even ifD.if only
13.A. regretB. joyC. courageD.relief
14.A. enjoyingB. checkingC. judgingD.making
15.A. aboveB. withinC. throughD.across
16.A. preparing forB. focusing onC. worrying aboutD.taking up
17.A. improvedB. failedC. appearedD.expanded
18.A. simpleB. reliableC. uniqueD.perfect
19.A. forceB. requireC. persuadeD.allow
20.A. competitionsB. changesC. differencesD.disabilities
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科目:高中英语 来源:2017届山东省高三上学期开学考试英语试卷(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仅限一词;
2. 只允许修改10处,多者(从第11处起)不计分。
California has the distinction of being the most multicultural state in the USA. The customs and languages of the immigrants live up in their new home. Scientists believe these settlers arrived in America by mean of a land bridge. Of the first Spanish to going to California, the majority was religious men. After the war, some returned home, and most remained in California to make life for themselves despite great hardship. In 1911 a great much immigrants from Denmark established a town of their own, which today still kept up their Danish culture. From 1882 to 1940 Angel Island was a famous immigration station that some Chinese people were applied for right to live in America.
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科目:高中英语 来源:2017届宁夏石嘴山市高三上学期第一次月考英语试卷(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:在错的词下画一横线,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仅限一词;
2.只允许修改10处,多者(从第11处起)不计分。
As is often the case, when people are attending to meetings, having meals or waiting for buses, you can always find them addicting to their phones, completely ignoring others.
This is really a commonly phenomenon in our life. The reason is why smart phones nowadays can be used for people to play mobile games and kept in touch with friends through QQ and WeChat. Therefore, too much exposure to phones are bad for people in terms of health. Moreover, people involved in phones fail to communicate well with these around them.
As far as I am concerned, people should wisely make use of their phones to help their work and study. Meanwhile, care much about their family and friends rather than mobile phones.
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科目:高中英语 来源:2017届宁夏石嘴山市高三上学期第一次月考英语试卷(解析版) 题型:阅读理解
Finally,I entered the university. Because of my careful savings,I did not have to work during the school years. Then summer came and it was time to work harder than ever. I continued working as a waitress at night,instructed tennis camps several mornings a week and worked as a secretary for a few hours in the afternoons. I even decided to take a class at a community college. This class at the community college saved me $650.It was an extremely tiring summer and made me anxious to return to my relatively easy life at the university.
During my second and third years of undergraduate schooling,I decided to work about five hours per week in the campus admissions office answering phones. This provided a little spending money and kept me from drawing my savings out .The overall situation looked hopeful as I approached my senior year as long as I could make as much money as I had the previous summer. I wanted to go to Israel to study for 3 weeks,but I hesitated in making this decision because it would cost me $1,600 more to get the credits in Israel. About two weeks later my mom called to tell me that I had $1,600 in the bank that I had forgotten about!One of my concerns about this trip was not only the cost,but the loss of time to make money;however,I made as much that summer in the ten weeks when I was at home as I had made during the fourteen weeks when I was at home the summer before. The way everything worked together to make this trip possible was one of the most exciting things that have ever happened to me.
This experience has shaped me in many important ways. The first thing that I learned was the importance of a strong work ethic. Working long hours did a lot to develop my character and helped me learn the value of a dollar. It also made me learn how to search for creative ways to settle difficult situations.
1.Where did the writer probably work part?time before attending the university?
A. In a restaurant.
B. In the tennis camps.
C. In a company.
D. In the campus admissions office.
2.The writer took a class at a community college mainly because ________.
A. she wanted to save money
B. life there was relatively easy
C. summer time was tiring
D. it was required by the university
3.The writer’s major concern about the trip to Israel was that ________.
A. her mother would not give her approval
B. she would fail to get credits in Israel
C. a well?paid summer job would be lost
D. $1,600 couldn’t be drawn out in time
4.The passage is mainly about how the writer ________.
A. made money on the college campus
B. managed to make full use of her vacation
C. was forced to support herself by her mother
D. was shaped by working part?time through college
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科目:高中英语 来源:2016-2017学年贵州遵义航天高中高一上期入学考试英语卷(解析版) 题型:阅读理解
On October 31st, 2009, Chinese famous scientist Qian Xuesen, died in Beijing when he was 98 years old. He is famous as “the country’s father of space technology and king of rocketry”.
Qian was born in 1911 in Hangzhou. He left for the United States after winning a scholarship to graduate school in 1936. He studied at the Massachusetts Institute of Technology and later at the California Institute of Technology.
Qian began his career in the US and was regarded as one of the brightest minds in the new field of aeronautics(航空学) before returning to China in 1955.
After he returned, Qian set up the first missile(导弹)and rocket research institute(学院) of China. The institute later helped start Chinese space program. He led the development of China's first nuclear-armed ballistic missile (弹道导弹) and worked on its first satellite.
He retired in the year before Chinese manned space program was launched in 1992. But his research formed the basis(形成基础)for the Long March CZ -2F rocket that carried astronaut Yang Liwei into orbit in 2003.
In August, 2009, Chinese Premier Wen Jiabao visited Qian and praised him for devoting his life to Chinese defense technologies. Qian told him, “I'm trying to live to be 100 years old”.
1.Qian was regarded as ________ before returning to China.
A. a father of space technology
B. king of rocketry
C. one of the brightest minds in the new field of aeronautics
D. one of the best-known scientists
2.When did Qian Xuesen retire?
A. In 1970.B. In 1991.C. In 1992.D. In 2009.
3.What does the underlined word mean in Chinese?
A. 发奖品B. 批评C. 赞扬D. 鼓励
4.List the following things in correct orders. Which is the correct?
①left for the United States
②won a scholarship to graduate school
③returned to China from the United States
④set up the first missile and rocket research institute of China
⑤studied at the Massachusetts Institute of Technology
A. ②①③④⑤B. ②①⑤③④
C. ⑤③④②①D. ⑤②①③④
5.Which of the following is TRUE according to the passage?
A. Qian was born in 1936 in Hangzhou.
B. Qian began his career in China.
C. The long March CZ-2Frocket carried YangLiwei into orbit in 2009.
D. Wen Jiabao visited QianXuesen in August 2009.
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科目:高中英语 来源:2017届黑龙江哈尔滨六中高三上期开学考试英语试卷(解析版) 题型:单项填空
—How did the game ________ last night? —I don't know. I fell asleep in the middle of it.
A. come out B. bring out C. pick out D. get out
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