山西省怀仁县20xx届高三上学期期中考试英语试题word版含答案

山西省怀仁县20xx届高三上学期期中考试英语试题word版含答案内容摘要：

tten mainly to . A. stress the importance of the positive life style B. analyze the intentions and thoughts in our mind C. offer advice on having sunshine from our inside D. warn us about the bad effects of negative attitudes C LondonIf it really is what39。 s on the inside that counts, then a lot of thin people might be in trouble. Some doctors now think that the internal fat surrounding important ans like the heart or liver could be as dangerous as the external fat which can be noticed more easily. Being thin doesn39。 t surely mean you are not fat, said Dr Jimmy Bell at Imperial College. Since 1994, Bell and his team have scanned nearly 800 people with MRI machines to create fat maps showing where people store fat. According to the result, people who keep their weight through diet rather than exercise are likely to have major deposits of internal fat, even if they are slim. Even people with normal Body Mass Index scores can have surprising levels of fat deposits inside. Of the women, as many as 45 percent of those with normal BMI scores（ 20 to 25） actually had too high levels of internal fat. Among men, the percentage was nearly 60 percent. According to Bell, people who are fat on the inside are actually on the edge of being fat. They eat too many fatty and sugary foods, but they are not eating enough to be fat. Scientists believe we naturally store fat around the belly first, but at some point, the body may start storing It elsewhere. Doctors are unsure about the exact dangers of internal fat, but some think it has something to do with heart disease and diabetes. They want to prove that internal fat damages the body39。 s munication systems. The good news is that internal fat can be easily burned off through exercise or even by improving your diet. If you want to be healthy, there is no short cut. Exercise has to be an important part of your lifestyle, Bell said. 29. Doctors have found . A. being slim doesn39。 t mean you are not fat inside B. internal fat is the cause of heart disease and diabetes C. being slim is not dangerous at all D. the exact dangers of internal fat 30. According to the passage, which of the following is WRONG? A. People with heart disease all have internal fat. B. People can get rid of internal fat by improving diet. C. Men are more likely to have too much internal fat. D. Exercise can help to reduce the internal fat. 31. From the last paragraph, we can find that . A. whether internal fat can lead to disease has been proved B. exercise plays in important role in peopled life for keeping healthy C. thin people usually have internal fat even if they are slim D. it is easier to bum off internal fat than external fat D Some colors people see late at night could cause signs of clinical depression. That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression. Doctors use the word clinical depression to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide. In the new study, American investigators designed an experiment that exposed hamsters（仓鼠）to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and arc active at night. The animals were separated into four groups. One group of hamsters was kept in the dark during their nighttime period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light. After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water. Randy Nelson heads the Department of Neuroscience at Ohio State University. He says animals that slept in blue and white light appeared to be the most depressed. What we saw is that these animals didn39。 t show any sleep uneasiness at all but they did mess up biological dock genes and they did show depressive sign while if they were In the dim（微弱） red light, they did not. Randy Nelson notes that photosensitive（感光） cells in the eyes have little to do with eyesight. He says these cells send signals to the area of the brain that controls what has been called the natural sleepwake cycle. He says ther。