It doesn't take a rocket scientist long time to figure out that there are better things you could do for your health than take deep breaths on a smoggy（烟雾的）day. A growing pile of research suggests that even relatively low levels of air pollution may be more harmful than previously realized, to both heart and lungs(肺). The latest articles from researchers, published this week in the New England Journal of Medicine, focuses on how particulate (微粒) matter from air pollution affects lung function.
“The effect of low levels of particulate pollution found in many urban areas is not unlike secondhand smoke,” experts say. Studies show that short-term effects from particulates include diminished（减少） lung function, coughing, wheezing, and heart attacks. Long-term exposure can also slow normal lung growth, damage lung airways, and increase the risk of dying from lung cancer.
Certain populations, such as the very old and the very young, are the most vulnerable to air pollution. However, even the most alarming studies conducted in the most polluted areas suggest that the average person's individual risk from exposure (暴露) is very slight. Relative risk numbers often seem more frightening than they actually are. For example, an earlier study published in the New England Journal of Medicine found that short-term exposure to traffic fumes tripled ( 成为3倍) the risk of heart attacks in heart-attack survivors.
Short of moving to the countryside or at least away from busy roads, shielding yourself from the effects of air pollution is not easy. Masks won't work. “At the very least,” suggests Murray Mittleman, a cardiologist at Harvard University, “people who regularly exercise outdoors near highways may want to consider remapping their route.”
66. What does the underlined sentence in the first paragraph mean?
A. Rocket scientists are making researches on people’s health.
B. It's obvious that air pollution has a bad effect on people’s health.
C. People aren't sure whether taking deep breaths on a smoggy day is bad.
D. People often have a hard time when taking deep breaths on a smoggy day.
67. The word "vulnerable" in Paragraph 3 probably means _________.
A. easy to be hurt B. easy to be protected
C. easy to be used D. easy to be saved
68. The main idea of Paragraph 3 is _________.
A. that even small risk from particulate causes big problems
B. that air pollution often leads to heart attack
C. who are most likely to get affected
D. that we shouldn't worry about the average low risk
69. In order to be healthier, you'd better _________.
A. take deep breaths B. wear a mask
C. live in a countryside D. clean the busy road
70. The passage is written in a(n) _________ tone.
A. subjective B. humorous C. doubtful D. objective
Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer, saying studies showed a clear link. “Our suggestion is for people to increase their intake (吸入，摄入), through diet or a vitamin supplement,” Dr. Cedric Garland said in a telephone interview.
Garland's research team reviewed 63 studies, including several large long-term ones, on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. “There's nothing that has this ability to prevent cancer,” he said, urging governments and public health officials to do more to fortify (增强) foods with vitamin D. Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses, usually at around 100 international units（IU）a serving. “People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day” Garland said， adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas, which receive less vitamin D from sunshine.
“African Americans, who don't produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake,” the authors said.
61. According to the passage, people are advised to take more Vitamin D, because__.
A. it is nutritious B. it can‘t harm people’s health
C. it can lower cancer risk D. it is not taken enough every day
62. Which of the following can not help people get more Vitamin D?
A. Have some sunshine B. Have more meat
C. Have more fortified cheese D. Have a vitamin supplement
63.Who can Garland probably be?
A. A health researcher B. A doctor
C. A scientist D. A public health official
64.Which of the following food can lower people‘s chance of getting cancer?
A. Milk B. Fortified orange juice
C. Fortified yogurt D. All of the above
65.People from which area should take more Vitamin D according to the passage?
A. Asian people B. African people
C. American people D. European people
The most important holiday in spring, especially for Christians, is Easter. This Christian holiday is not on the same date every year，but it’s always on a Sunday. It can be any Sunday between March 22 and April 25. Many people celebrate Easter by buying new clothes. Children celebrate by hunting for colored eggs that their parents have hidden around the house. People also give Easter baskets filled with candy and other goodies to one another to celebrate the day.
But the holiday is more than new clothes and good things to eat. On Easter, many people go to church to celebrate Jesus’ resurrection（复活）from the dead. Most people color Ester eggs. Some people hide them. Others just eat them. But no matter what one does with Easter eggs，they are an important Easter tradition throughout the Western world. People from many different cultures celebrate Easter. In both America and Belgium, children look for Easter eggs hidden on lawns and in bushes. In America, children believe the eggs are hidden by the Easter bunny (兔子).But in Belgium, the hidden eggs are supposed to have fallen from church bells. In Bulgaria (保加利亚), red Easter eggs are lucky in churches. Bulgarian families also hit these Easter eggs together to see whose is the strongest. The winner looks forward to good fortune that year. Still dozens of other Easter traditions exist. In parts of Austria，for example，children sing from door to door and are rewarded with colorful eggs.
56. Easter comes _______.
A. on the same date every year B. on Sunday on March 22
C. on Sunday on April 25 D. on a Sunday between March 22 and April 25
57. To celebrate Easter, people ___________.
A. go shopping, hide colored eggs and children hunt for them
B. give Easter baskets filled candy and goodies to one another
C. buy new clothes, hide colored eggs and children look for them around the house
D. both B and C
58. For Christians the more important thing to do on Easter is________.
A. going to church to celebrate Jesus’ resurrection
B. buying new clothes
C. eating delicious food and paint color eggs
D. exchange beautiful gifts each other
59. People from different cultures have different ideas about Easter egg _________.
A. In both American and Belgium, children hunt for Easter eggs hidden in rooms and in bushes
B. In Belgium, the hidden eggs are thought to have fallen from doorbells
C. In American, children believe the eggs are hidden by the Easter bunny
D. In America, the hidden eggs are supposed to have fallen from doorbells
60. In some places of Austria, children sing from door to door for_______.
A. blesses B. Easter eggs C. candy and goodies D. Easter bunny
语法填空（共10小题，满分15分）
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中的词的正确形式填空。
Although English is not as old as Chinese, it is spoken by many people around the world every day. English speakers are always making new words and we should be able to know ______46_____ most words come from.
Did you ever think about why hamburgers are called hamburgers, ____47___ (especial) when they are not made ___48___ ham? About a hundred years ago, some men went to America from Europe. They came from a big city in Germany ___49___ (call) Hamburg.
They did not speak good English, __50__ they ate good food. Some Americans saw them eating round pieces of beef. Never ___51____ they seen such a strange way. They couldn’t help ___52____ (ask) the Germans what it was. The Germans did not understand the question and answered, “We came from Hamburg.” One of these Americans owned a restaurant, and had an idea ___53____ he could do something new. He cooked some round pieces of beef like ____54___ the men from Hamburg ate and sold them in quite a few countries around the world.
Whether this story is true or not, it may be considered to be an interesting ___55___.
The owner of the restaurant was afraid of ___________ in debt and decided to do some research _______ healthy foods to change the situation.
|
A．to be; on |
B．being; to |
|
C．to be; in |
D．being; into |
I love the quiet, clean countryside, which is _______ I want to go and work there.
|
A．what |
B．how |
C．that |
D．why |
