Your cellphone holds secrets about you. Besides the names and numbers that you’ve programmed into it, traces of your DNA remain on it, according to a new study.
DNA is genetic material that appears in every cell. Like your fingerprint, your DNA is unique to you-unless you have an identical twin. Scientists today usually analyze DNA in blood, saliva(唾液), or hair left behind at the scene of a crime. The results often help detectives identify criminals and victims.
Meghan J. McFadden, a biologist at McMaster University in Hamilton, Ontario, heard about a crime in which the suspect bled onto a cellphone and later dropped it. This made her wonder whether traces of DNA remained on cellphones-even when no blood was involved. To find out, she and a colleague collected flip-style(翻盖式) phones from 10 volunteers. They collected invisible traces of the users from two parts of the phone: the outside, where the user holds it, and the speaker, which is placed at the user’s ear.
The scientists cleaned the phones using a liquid mixture made mostly of alcohol. The aim of washing was to remove all delectable traces of DNA. The owners got their phones back for another week. Then they returned the phones and the researchers collected traces on each phone once more. They discovered DNA that belonged to the phone’s owner on each of the phones.
Surprisingly, DNA was even picked up immediately after the phones were cleaned. That suggests that washing won’t remove all traces of evidence from a criminal’s cellphone. So cellphones can be added to the list of clue the can settle a crime-scene investigation.
68. What’s the main idea of the passage?
A. The cellphone means most secrets of its owner.
B. McFadden is famous for her secrets of its owner.
C. The investigation of a crime is a hard job.
D. DNA can be available on the user’s cellphone.
69. In a crime-scene investigation, now experts are likely to turn to .
A. the criminal’s fingerprint B. the DNA analysis of physical items
C. the detectives D. the criminal’s cellphone
70. According to the passage, McFadden was inspired by .
A. the secrets stored in people’s cellphones B. the special characters of DNA
C. a cellphone-involved case D. the challenging job of detectives
71. According to the passage, the potential application of the new study would be .
A. identifying criminals B. designing new cellphones
C. protecting individual privacy D. preventing cellphone-involved crime
科目：高中英语 来源： 题型：阅读理解
Ⅱ.完形填空（共20小题；每小题1.5分，满分30分）
After spending a weekend away with my adult son, I was so impressed by his generous heart that I sent him this letter.
Dear son,
I was to thank you for teaching me a very 16 lesson in life by the great example you 17 . When we were eating at that café in Bondi and a person who had 18 his hamburger didn’t have enough money to pay for it, without any 19 , you went over and put the 20 $ 2 into his hand.
When we were leaving, you 21 threw a five-cent coin onto the pavement and said 22 like, “Some kid will really enjoy 23 this.”
Last week, a young man 24 me in the line at a petrol station didn’t have 25 money to pay for his petrol. I asked money collector, “How much 26 is he?” she told me he had meant to put $ 15 of petrol in his car 27 he had been looking at the wrong gauge (计量表) and had put in 15 28 , which came to just over 29 . That is an easy mistake 30 both gauges run fast.
Something made me think of you and 31 you did that night at the café in Bondi. I handed the man $6. He was so 32 and said, “but why would you do this for me?” I just smiled as I thought of you.
Thank you, son, for teaching me that “it’s 33 to give than receive”. Now when I see a five-cent coin on the 34 and want to pick it up, I think of you and leave it 35 , just in case some kid will get a kick out of finding it.
Love always, Mum
16. A. humorous B. private C. reasonable D. valuable
17. A. followed B. gave C. set D. took
18. A. ordered B. booked C. offered D. bought
19. A. hesitation B. doubt C. permission D. difficulty
20. A. other B. last C. extra D. rest
21. A. again B. already C. only D. also
22. A. nothing B. everything C. anything D. something
23. A. finding B. accepting C. looking for D. pointing at
24. A. behind B. beyond C. ahead of D. next to
25. A. much B. some C. any D. enough
26. A. far B. long C. short D. high
27. A. and B. but C. so D. while
28. A. liters B. kilograms C. pounds D. kilometers
29. A.$15 B. $20 C. $25 D. $30
30. A. until B. as C. although D. unless
31. A. what B. which C. whatever D. whichever
32. A. excited B. surprised C. interested D. encouraged
33. A. easier B. better C. faster D. worse
34. A. corner B. way C. ground D. carpet.
35. A. there B. here C. out D. around
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科目：高中英语 来源： 题型：阅读理解
High-tech machines have made life easier for millions around the world. However, some people still prefer low-tech ways of doing things. Here’s an example of why this is happening. You can microwave a frozen hamburger in 60 seconds. However, it won’t taste as good as one you cook on the stove. And if you’re in that much of a hurry, you probably won’t take time to toast the bun. High-tech cooking saves time, but it doesn’t make for better tasting meals.
Most people get their news from high-tech sources like television or the Internet. This has many advantages. For example, electronic news is more up to date than newspapers or magazines. It’s also more exciting to see live and videotaped news events than photographs. However, newspapers and magazines have some important advantages. They give more background and details. They also let you read the parts that are important to you and skip the rest.
Other high-tech timesavers have similar disadvantages. For example, most people use the phone or email to stay in touch with friends and family members who live in other places. But when you use the Internet or the phone, you don’t always think carefully about what you are saying, and sometimes you forget the important things you want to communicate. Similarly, when you word process a home work assignment instead of handwriting it, you can check your spelling electronically and put in fancy headings. However, some students are so busy with the computer that they don’t pay enough attention to the actual words they are writing.
72. Which of the following statements is TRUE according to the passage?
A. The writer likes high-tech cooking.
B. Low-tech cooking produces better-tasting meals.
C. High—tech news programs always keep you reading what is important to you.
D. Handwritten homework is better than word-processed homework.
73. How does the writer feel about high—tech tools?
A. Better late than never. B. Easy come, easy go.
C. Every coin has two sides. D. Learn to walk before you run.
74. What is the main subject discussed in the text?
A. High—tech vs. low—tech.
B. Advantages vs. disadvantages.
C. Newspapers and magazines vs. television and the Internet.
D. Word—processing vs. handwriting.
75. How is the text organized?
A. Main idea — Argument — Explanation.
B. Opinion — Discussion — Description.
C. Topic — Comparison — Supporting examples.
D. Introduction — Supporting examples — Discussion.
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科目：高中英语 来源： 题型：
II. 完形填空（共10题；每小题2分， 满分20分）
阅读下面短文，掌握其大意，然后从21—30各题所给的A、B、C和D项中，选出最佳选项。
Married couples 21 more than their homes, cars and finances. They are also likely to have some of the same 22 , experts say. If one of them 23 from asthma (哮喘) , depression, high blood pressure or raised cholesterol n. (胆固醇) levels , his or her partner 24 be afflicted ( vt. 使苦恼,折磨) with the 25 illness , Julia Cox of the University in northern England said. Cox and her team said the most likely 26 for the shared diseases was environment. Married couples usually eat the same foods, are exposed to the same allergens (n. 过敏原) and often have similar exercise patterns, all of 27 contribute to ailments (n. 小病, 疾病) such as allergies, high blood pressure and raised cholesterol. The scientists 28 the medical history of 8,000 married couples, aged 30 to 74. 29 is known, the proper use should be 30 some efficient measures to stop this.
21. A. share B. spare C. own D. use
22. A. cancer B. diseases C. ill D. throat
23. A. keeps B. goes C. suffers D. comes
24. A. should B. shall C. could D. will
25. A. different B. difficult C. similar D. same
26. A. season B. promise C. reason D. approach
27. A. who B. which C. whose D. that
28. A. studied B. read C. copied D. understood
29. A. As B. For C. It D. What
30. A. made to B. made of C. making of D. to make of
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科目：高中英语 来源： 题型：
－Let's go to the park tomorrow morning.
－Sorry, I've got an important appointment at 9 o'clock and I can't______to miss it. (济宁市)
A.manage B.help C.wait D.afford
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his body and soul to bringing up-to-date technology and international attention to China’s AIDS problem, Dr. Pavid Ho, born in Taiwan, spent little time with his family.
A．Devoted B．To devote C．Being devoted D．Devoting
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科目：高中英语 来源： 题型：
Word comes _____ free books will be given to ______come first in this book fair.
A. which,no matter who B. that, anyone who C.which,whoever D.that,those who
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科目：高中英语 来源： 题型：
Haitian officials said it was the strongest earthquake to ____the country in more than 200 years.
A. happen B. strike C. hit D. occur
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科目：高中英语 来源： 题型：
With challenges before you, you should believe your courage is makes a difference.
A．that B．what C．which D．whatever
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