Read the following article and select the best answer. Article: Not all think laughter is the best medicine, but it seems to help.So scientists carried on a new study of diabetes patients who were given a good dose of humor for a year to prove it. Researchers divide 20 high-risk diabetic patients into two groups.Both groups were given standard diabetes medicine.Group L viewed 30 minutes of humor of their choice, while Group C, the control group, did not.This went on for a year of treatments. By two months into the study, the patients in the laughter group had lower level of the hormones epinephrine , considered to cause stress, which is known to be deadly.After the 12 months, _ rises 26 percent in Group L but only 3 percent in Group C.In another measure, C-reactive proteins, a maker of heart disease, drop 66 percent in the laughter group but only 26 percent in the control group. "The best doctors believe that there is a physical good brought about by the positive emotion, happy laughter," said study leader Lee Berk of Loma Linda University.And other research has found that humor makes us more hopeful.Still, more study is needed, Berk said.The research by Berk found that humor can bring about similar changes in body chemistry, which was proved in the new study.The research result will be presented this month at the meeting in the US.Research at the University of Maryland School of Medicine shows that laughter causes the inner lining of blood vessels to expand, increasing blood flow in a way thought to be healthy. "Lifestyle choices have an important effect on health and these are choices which we and patients should pay attention to, rather than prevention and treatment," Berk said in a statement this week. Question: In what way does laughter benefit people's health? - Blood is made thick by laughter. - Laughter makes blood vessels thin. - Laughter increases blood pressure. - Laughter makes blood flow fast.
Laughter makes blood flow fast.

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Read the following article and select the best answer. Article: Alex stared through the cabin window at the darkness. Soon his dad would call him. And he didn't want to go. He wished he hadn't come to the lake for the weekend. "We're ready," Dad said as he came in from the porch. " Grab your rod." Alex turned away from the window and slowly picked up his fishing rod. "Have fun!" Mom said. "Sure," said Alex, trying to make his voice bright. "We should have done this before." Dad said. "Let's catch a big one!" Dad picked up his tackle box, rod, and bait can from the porch. He clicked on the flashlight. They walked down the hill toward the lake in the narrow beam of light. The only thing Alex could see was the circle of weeds and rocks at their feet, lit by the flashlight. Insect voices filled his ears---clicks, hums, buzzes, whines. Hundreds of bugs waited in the darkness to attack. "Ow!" he blurted as he felt a sting on his arm. "Mosquitoes," Dad said. "I have brought some spray to keep them off." When they reached the boat, Alex stumbled as he climbed over the side. "I don't like this much," he said. "It's so dark." Dad squeezed his shoulder. "Don't worry. It's not as dark as you think. After a while your eyes will get used to the night." Suddenly something rushed past Alex's head. He gasped. "What was that?" "Probably a bat," Dad said. How could Dad act as if it were nothing! "Will bats be flying around our heads the whole time?" "This is their time to be out catching insects," Dad explained. "They won't hurt you. They're too busy grabbing dinner." He pushed the boat off the gravel and jumped in. Alex gazed back at the cabin. A square of light from the window glowed in the darkness. Dad rowed to the middle of the lake and stopped. "We'll just let the boat drift. Keep the flashlight in the bottom of the boat. The fish won't bite if they see light flashing around. When we've done baiting our hooks , we'll turn the light off." Leaning down to get closer to the light, Alex tried to thread a worm on his hook, but he couldn't seem to work his fingers right. So... Question: From the passage you know that _ . - Alex would like to go fishing there. - Alex was used to fishing in the lake. - Alex regretted going fishing at night. - Alex didn't want to be there.
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Alex regretted going fishing at night.

Question: Read the following article and select the best answer. Article: Stephen Hawking was born on January 8, 1942. He is known for his contributions to the fields of cosmology and quantum gravity , especially in the context of black holes. He experienced extreme difficulties and obstacles in his life, which only made him stronger. Finally he contributed much to the careers he devoted to and became one of the most famous scientists in the world. Hawking was outstanding in his school life. After a successful period of education at St. Albans School, the entrance of Oxford opened to him. In March 1959, at the age of 17, Hawking took the scholarship examination with the aim of studying natural sciences at Oxford. Then Hawking went to Cambridge to do research in cosmology. When Stephen Hawking was dreaming about his future, he faced extreme difficulties and obstacles. Symptoms of disorder first appeared while he was enrolled at Cambridge; he lost his balance and fell down a flight of stairs, hitting his head. The diagnosis of motor neuron disease came when Hawking was 21, shortly before his first marriage, and doctors said he would not survive more than two or three years. Hawking gradually lost the use of his arms, legs, and voice, and is now almost completely paralyzed . Despite his disease, he describes himself as "lucky" --- not only has time to make influential discoveries, but also has, in his own words, "a very attractive family". As someone has said, when we meet frustration, someone fights, someone cries, someone escapes, someone tries. Hawking succeeds because he tries. Question: What's the main idea of the passage? - Hawking is famous for his contributions. - Hawking has a successful school life. - Hawking overcame extreme difficulties and achieved his aims. - Hawking suffers from disease and is completely paralyzed.
Answer:
Hawking overcame extreme difficulties and achieved his aims.