Read the following article and select the best answer. Article: The first Beijing Fair of National Culture and Art kicked off August 3 and ran till August 12. The fair features more than 21 old Beijing business brands, more than 80 examples of intangible cultural heritage and 6 official Olympics merchandise. One of the highlights is a show featuring 15 lanterns. The fair aims at starting cultivating the cultural atmosphere for the Beijing Olympic Games, by highlighting the long history and culture of the city. The fair is divided into 12 districts and is open from 430--930 pm. There are both exhibitions and performances and interactive items tourists can enjoy. Sports competitions and craftmaking are available to teenagers, who can learn from old masters. Some of the most notable art elements include three luxury items worn by nobles in ancient China:a wooden craft called"pillow of Lu Ban", after a legendary civil engineer and carpenter who lived from 507--444 B.C., and whose designs are still used, and glass grapes. Some items are for sale and shoppers can hear about the history of the items from craftspeople. The lantern show includes 15 pieces installed along the park's main roads, providing both light and decor. There will be lantern shows accompanied by music and some lanterns feature designs including flowers, the moon and animal paintings. The fair also provides opportunities to teenagers to take part in interactive activities. For example, children can learn how to make dough figures from artist Wang Xingshan. They can also learn the art of papercutting, get some practice of braiding Chinese knots, and learn how to make sugar figures. Question: The first Beijing Fair of National Culture and Art lasted  _  days. - 9 - 21 - 8 - 15
9
Read the following article and select the best answer. Article: People who drink moderately  , exercise, quit smoking and eat five servings of fruit and vegetables each day live on average 14 years longer than people who adopt none of these behaviors, researchers said on Tuesday.   Much evidence has shown these things contribute to healthier and longer lives, but the new study  actually quantified   their combined effect, the British team said.   "These results may provide further support for the idea that even small differences in lifestyle may make a big difference to health in the population," the researchers wrote in the journal PLoS Medicine. Between 1993 and 1997 the researchers questioned 20,000 healthy British men and women about their lifestyles. They also tested every participant's blood to measure vitamin C intake, which shows how much fruit and vegetables people ate. Then they assigned the participants aged 45-79 a score of between 0 and 4, giving one point for each of the healthy behaviours.   After allowing for age and other factors that could affect the possibility of dying, the researchers determined people with a score of 0 were four times as likely to have died. Also a person with a health score of 0 had the same risk of dying as someone with a health score of 4 who was 14 years older.   The lifestyle change with the biggest benefit was giving up smoking, which led to an 80 percent improvement in health, followed by eating fruits and vegetables. Moderate drinking and keeping active brought the same benefits.   With this information, public-health officials should now be better encouraging behavior changes likely to improve the health of middle-aged and older people. Question: Who is the most likely to benefit from behavior changes according to the passage? - A 15-year-old student. - A 25-year-old soldier. - A 35-year-old teacher. - A 45-year-old housewife.
A 45-year-old housewife.
Q: Read the following article and select the best answer. Article: During her sixty-year career performing, Lena Horne entertained people with her beauty and rich, emotional voice. She used her fame to fight social injustices toward African-Americans. Lena Horne was born in New York in 1917. At sixteen, Lena became a dancer at the famous Club in New York City. After taking voice lessons, she soon became a singer. In 1940, Lena Horne became the first African-American to perform with an all-white jazz band. After performing at a club in Hollywood, California, she caught the attention of filmmakers. She soon began making movies. Her films became very popular. In the 1940's, Lena Horne was the first African-American in Hollywood to sign a long-term contract with a major movie studio. Her deal with MGM stated that she would never play the role of a servant. She refused to play roles that represented African-Americans disrespectfully . But this refusal also limited her movie career. Lena Horne once said that World War Two helped make her a star. She was popular with both black and white soldiers. She sang on army radio programs and traveled to perform for the troops. Once, she noted that German prisoners of war were permitted to sit closer to the stage than black soldiers. She was very angry. These experiences led to Lena Horne's work in the civil rights movement. Lena Horne sang at civil rights gatherings. She took part in the March on Washington protest in 1963. It was during this event that Martin Luther King Junior gave his "I Have a Dream" speech. She protested racial separation at the hotels where she performed. She took action so that she and her musicians would be allowed to stay in those hotels. Black musicians at the time generally stayed in black neighborhoods. Lena Horne died in New York in 2010. Question: How old was Lena Horne when she died? - 86 years old. - 93 years old. - 98 years old. - 88 years old.
A: 93 years old.
(Q).
Read the following article and select the best answer. Article: Can people change their skin color1 without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin color1.     The gene comes in two versions, one of which is found in 99 percent of Europeans. The other is found in 93 to 100 percent of Africans, researchers at Pennsylvania State University report in the latest issue of science.     Scientists have changed the color1 of a dark-striped zebrafish to uniform gold by inserting a version of the pigment gene into a young fish. As with humans, zebrafish skin color1 is determined by pigment cells, which contain melanin  . The number, size and darkness of melanin per pigment cell determine skin color1.     It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation   in the gene for melanin production. This results in less pigmented skin. However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes.     Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun , which can cause skin cancer. But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.     "Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin color1," said Cheng.     The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin color1 without damaging it like chemical treatment did on Michael Jackson. ks5u Question: The reason why Europeans are light-skinned is probably that   _ - they are born light-skinned people - light-skinned Europeans have mutation in the gene for melanin production - they have fewer activities outside - they pay much attention to protecting their skin
(A).

light-skinned Europeans have mutation in the gene for melanin production