Could your cellphone give you cancer? Whether...

Could your cellphone give you cancer? Whether it could or not，some people are worrying about the possibility that phones，powerlines and wi-fi could be responsible for a range of illnesses，from rashes to brain tumors.

For example，Camilla Rees，48，a former investment banker in the US，moved out of her apartment in San Francisco because of the radiation coming from next door．Rees told the Los Angeles Times that when her neighbors moved in and installed a wi-fi router she lost her ability to think clearly．“I would wake up dizzy in the morning．I’d fall to the floor．I had to leave to escape that nightmare，” she saiD． Since then，she’s been on a campaign against low-level electromagnetic fields，or EMFs（低频电磁场）.

And she’s not alone．Millions of people say they suffer from headaches，depression，nausea and rashes when they’re too close to cellphones or other sources of EMFs.

Although the World Health Organization has officially declared that EMFs seem to pose little threat，governments are still concerneD． In fact，last April，the European Parliament called for countries to take steps to reduce exposure to EMFs．The city of San Francisco and the state of Maine are currently considering requiring cancer-warning labels on cellphones.

If these fears are reasonable，then perhaps we should all be worried about the amount of time we spend talking on our phones or plugging into wi-fi hotpots.

Some say there is evidence to support the growing anxieties．David Carpenter，a professor of environmental health sciences at the University at Albany，in New York，thinks there’s a greater than 95% chance that power lines can cause childhood leukemiA． Also there’s a greater than 90% chance that cellphones can cause brain tumors.

But others believe these concerns are unreasonable paranoia (猜疑)．Dr．Martha Linet，the head of radiation epidemiology at the US National Cancer Institute，has looked at the same research as Carpenter but has reached a different conclusion．“I don’t support warning labels for cellphones，” said Linet．“We don’t have the evidence that there’s much danger.”

Studies so far suggest a weak connection between EMFs and illness — so weak that it might not exist at all．A multinational investigation of cellphones and brain cancer，in 13 countries outside the US，has been underway for several years．It’s funded in part by the European Union，in part by a cellphone industry group．

According to Robert Park，a professor of physics at the University of Maryland in the US，the magnetic waves aren’t nearly powerful enough to break apart DNA，which is now known threats，such as UV rays and X-rays，cause cancer.

Perhaps it’s just psychological．Some experts find that the electro-sensitivity syndrome seems to be similar to chemical sensitivity syndrome，which is a condition that’s considered to be psychological.

Whether EMFs are harmful or not，a break in the countryside，without the cellphone，would probably be good for all of us.

高三英语填空题中等难度题查看答案及解析

Cell phones:　 is there a cancer link?

Could your cell phone give you cancer? Whether it could or not, some people are worrying about the possibility that phones, power lines and Wi-Fi could be responsible for a range of illnesses, from rashes to brain tumors.

Some say there is evidence to support the growing anxieties. David Carpenter, a professor of environmental health sciences at the university at Albany, in New York, thinks there’s a greater than 95 percent chance that power lines can cause childhood leukemia(白血病). Also there’s a greater than 90 percent chance that cell phones can cause brain tumors. “It’s apparent now that there’s a real risk, ” said Carpenter.

But others believe these concerns are unjustified. Dr Martha Linet, the head of radiation epidemiology(流行病学) at the US National Cancer Institute, has looked at the same research as Carpenter but has reached a different conclusion. “I don’t support warning labels for cell phones, ” said Linet. “We don’t have the evidence that there’s much danger. ”

Studies so far suggest a weak connection between EMFs(电磁场) and illness— so weak that it might not exist at all. A multinational investigation of cell phones and brain cancer, in 13 countries outside the US, has been underway for several years. It’s funded in part by the European Union, in part by a cell phone industry group. The final report should come out later this year, but data so far don’t suggest a strong link between cell phone use and cancer risk.

1.From the passage we can learn that some people are worried because _______.

A. they have evidence that the use of cell phones can lead to cancer

B. they make a fuss over cell phone use

C. some experts have given a warning

D. cell phones are responsible for brain tumors

2.By saying “I don’t support warning labels for cell phones, ” Dr Martha Linet has the idea that _______.

A. the worrying is unnecessary

B. cancer-warning labels should be on cell phones

C. there is a link between cell phones and cancer

D. cell phones have nothing to do with cancer

3.Which of the following best describes the attitude of the author towards the debate?

A. Optimistic.                         　　 B. Objective.

C. Opposite.                             　　 D. Casual. ]

高三英语阅读理解中等难度题查看答案及解析

Whether it is Mozart or Miley，your choice of music could determine whether you will perform well al your work．

A new study suggests that listening to music in the office improves the speed and accuracy of tasks such as data entry，proof reading and problem solving．

In an office-based experiment，88 pet cent of participants were found to produce their most accurate work when listening to music．

The study also found that 81 per cent completed their fastest work when music was played．

And it matters what type of music you listen to．For instance，if you’re doing your tax returns，then classical music is the most effective as it improves maths skills．

Listening to Jessie J or Justin Bieber could also improve your speed，with 58 per cent of participants completing data entry tasks faster while listening to pop songs．

During proof-reading，dance music，such as David Guetta，had the biggest positive impact with participants increasing their speed by 20 per cent compared to tests undertaken with no music at a11．

Dance music also had a positive effect on spell-checking with a 75 per cent pass rate compared to 68 percent when no music was played al a11．

The research，undertaken by Brighton-based Mindlab International，suggests that silent offices may be the least productive．

“The music experiment showed that when listening to music，nine out of 10 people performed better，”said Dr．David Lewis．Chairman of Mindlab International．

“Proper music enables people to quickly process and keep information，regulate their behaviors，make good choices，solve problems，plan and adjust to changing mental demands，”a senior investigator of Mindlab International explains．

“While many schools are cutting music programs and spending more and more time on test preparation，our findings suggest that musical training may actually help to set up children for a better academic future．”added D r．David Lewis．

1.What does the passage mainly talk about?

A．The positive relationship between music and efficiency．

B．The speed and accuracy of problem-solving tasks．

C．The comparison of different kinds of music．

D．The experiment on productivity of office staff.

2.According to the passage，we can conclude that______．

A． different kinds of music lead to the same effect

B．silent offices can make people perform better

C．listening to proper music can improve efficiency in office

D．more tests prepare children for a better academic future

3.What is the author’s attitude towards school music programs?

A．Respectful．　　 B．Doubtful．

C．Tolerant．　　　 D．Supportive．

高三英语阅读理解中等难度题查看答案及解析

阅读理解

Whether it is Mozart or Miley, your choice of music could determine whether you will perform well at your job. A new study suggests that listening to music in the office improves the speed and accuracy of tasks such as data entry, proofreading and problem solving. In an office­based experiment, 88 per cent of participants were found to produce their most accurate work when listening to music.

The study also found that 81 per cent completed their work fastest when music was played. And it matters what type of music you listen to. For instance, if you're doing your tax returns, then classical music is the most effective as it improves maths skills.

Listening to Jessie J or Justin Bieber could also improve your speed, with 58 per cent of participants completing data entry tasks faster while listening to pop songs. During proofreading, dance music, such as David Guetta, had the biggest positive impact with participants increasing their speed by 20 per cent compared to tests undertaken with no music at all. Dance music also had a positive effect on spell­checking with a 75 per cent pass rate compared to 68 per cent when no music was played at all.

The research, undertaken by Brighton­based Mindlab International, suggests that silent offices may be the least productive. The Music Works experiment revealed a positive correlation between music and productivity. Overall, it showed that when listening to music, nine out of ten people performed better, said Dr David Lewis, chairman of Mindlab International.

1.Whose music can help you do maths homework according to the study?

A．The music of Justin Bieber.

B．The music of Mozart.

C．The music of David Guetta.

D．The music of David Lewis.

2.Which of the following is NOT mentioned according to the passage?

A．Music makes you relaxed.

B．Music helps you to enter data faster.

C．Music improves maths skills.

D．Music has a positive effect on spell­checking.

3.The result of the experiment showed that when music was played, ________.

A．88% of people worked faster

B．81% of people did their most accurate work

C．90% of people worked better

D．75% of people completed data entry task faster

4.What can we conclude from the passage?

A．Music may be helpless to people in office.

B．Silent offices can make people work better.

C．Different kinds of music have the same effect.

D．Silent offices may make people work least profitably.

高三英语阅读理解中等难度题查看答案及解析

…I wonder if I could use your cellphone．

…　　　　 _．It is on the desk next to you．

A．No way　　　　　　　 　　　　 B．That's right

C．It’s a pleasure　　　　 D．Be my guest

高三英语单项填空中等难度题查看答案及解析

—I wonder if I could use your cellphone．

—_______．It is on the desk next to you．

A．No way    B．That's right

C．It’s a pleasure    D．Be my guest

高三英语单项填空中等难度题查看答案及解析

I would appreciate ________ you could give me some advice on learning English.

A．it whether     B．it if

C．that when     D．that if

高三英语单项填空中等难度题查看答案及解析

Han Mei, I would appreciate ______ you could give me some suggestions on GRE test.

A. it whether     B. it if           C. that when          D. that if

高三英语单项填空中等难度题查看答案及解析

I would appreciate _______ you could give me some advice on TOFEL test.

A. that when        B. it whether         C. it if              D. that if

高三英语单项填空中等难度题查看答案及解析

I’d appreciate ________ if you could let me know in advance whether or not you will come.

A. it　　　　　　　     B. you　　　　　　　     C. one　　　　     D. this

高三英语单项填空中等难度题查看答案及解析