How does the man feel about the article in the end?
A.Satisfied. B.Annoyed. C.Bored.
Which floor is the Committee Room on?
A.The second floor. B.The third floor. C.The fourth floor.
Where did the man put the woman’s bike?
A.Under a street lamp. B.In a garage. C.In a backyard.
请认真阅读下面短文，并按照要求用英语写一篇150词左右的文章。
下图记叙的是一位种树人带着小狗Doggy 去种树时发生的事情, 假定你是下图中的种树人, 以第一人称写一篇150词左右的记叙文。
参考词汇: 桶pail 铲shovel
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Have you ever wondered why there are so many skin colors in the world? Do you know why people living in particular areas usually have a certain color? Biology and history are the two reasons for this.
Skin contains something called melanin, which determines a person’s skin color. The more melanin a person has, the darker his or her skin will be. The amount of and the production of melanin are controlled by genetics, but can be affected by other things, such as sunlight. If a person lives in a place with less sunlight, a person’s body will produce less melanin, making the skin lighter.
Skin color is also affected by another source ---- vitamin D. humans all need vitamin D to build bones. People can get it by eating foods such as fish and milk, or from sunlight, so sunlight absorbed by melanin cannot be used for vitamin D production. Therefore, a dark—skinned person will produce less vitamin D than a light—skinned person when they received the same amount of sunlight.
The connection between vitamin D production and skin color is clear when we look at evolution. The earliest humans lived in Africa, their dark skin produced less vitamin D because of their dark skin. As a result, their skin made less melanin, so they could get enough sunlight to produce vitamin D. their skin gradually got lighter and they lost hair. Now, people living in areas with strong sunlight like Africa, have darker skin, while people living in other areas have lighter skin. The exception to this is the Inuit, who live in a place with little sunlight, but have dark skin because they eat a lot of fish and have enough vitamin D.
Evolution has given us a rainbow of skin colors. Humans have always had melanin to determine our skin color. What has changed through history is the environment where we have lived. This has in turn changed our melanin production, and eventually, skin color.
Brief1. | People living in a particular2.usually have the same skin color and there are many different skin colors in the world. |
Reason for skin color | The reasons for different skin colors mainly3.in biology and history. |
Biology reasons | The amount of melanin, by which a person’s skin color is 4.varies from people to people. The more melanin a person has, the 5.his or her skin will be. |
Historical reasons | The earliest people in Africa hioknj006Dad dark skin with hair covering it because the sunlight is very strong. |
9. | Melanin 10.an important role in our skin color. With our living environment changing, melanin production is changed, which leads to the changes in our skin color. |
A research by the National Center for Health Statistics is seen as an important confirmation of the “Hispanic mortality paradox(西班牙裔死亡率悖论).”
On average, Hispanics outlive whites by 2.5 years and blacks by 7.7 years. Their life expectancy at birth in 2006 was 80.6 years, compared with 78.1 for whites, 72.9 for blacks and 77.7 years for the total population.
The report shows that the Hispanic population has higher life expectancy at birth and at almost every age despite a socioeconomic status lower than that of whites. “Mortality is very correlated with income, education and health care access,” says Elizabeth Arias, author of the report. “You would expect the Hispanic population would have higher mortality, in line with the black population.”
The Hispanic paradox has been documented for more than two decades, but this is the first time the government has had enough data to issue national numbers. Researchers are struggling to explain why Hispanics live longer.
“We don’t know,” says David Hayes-Bautista, director of the Center for the Study of Latino Health and Culture at UCLA’s David Geffen School of Medicine. “We thought it was a problem in the data, but we can pretty much say this is real.”
Potential factors:
·Culture and lifestyle. Support from extended family and lower rates of smoking and drinking. Latino groups in particular have very strong family and social ties.
·Migration. The “healthy migrant effect” argues that healthy people are more likely to emigrate. And when immigrants become ill, they might return home and die there.
“Solving the puzzle may help the nation deal with health care issues because Hispanics use health services less—they make fewer doctors visits and spend less time in hospitals,” Hayes Bautista says. “It’s clearly something in the Latino culture,” he says.
1.In 2006, Hispanics’ life expectancy is years longer than the average of the total population.
A.2. 5 B.7. 7 C.2. 9 D.80. 6
2.What does the underlined word “outlive” in the second paragraph probably mean?
A.To live longer than. . .
B.To live shorter than. . .
C.To die out.
D.To expect to live.
3.What is the main idea of paragraph three?
A.Hispanics were born better than whites.
B.Morality is closely related with health care access.
C.Whites should have longer life expectancy.
D.Even experts can’t explain the phenomenon.
4.What is Mr. Hayes-Bautista’s opinion about the paradox?
A.He supports there is a problem with the data.
B.He intends to trust the cultural factor.
C.He believes in the “healthy migrant effect”.
D.He thinks health care the most important factor.
