【正文】 rogress.”可知正確選項(xiàng)為B。50．Which kind of people may be infected with HIV?A. Babies. B. Mother.C. Drug users. D. Workers.答案：C　細(xì)節(jié)理解題。根據(jù)文章最后一段“But she noted that the populations most at risk are also those who have the least access to populations include sex workers，drug users and homosexual men.”可知C為正確選項(xiàng)。E A nosebleed can be frightening to get or see, but try to stay calm. Most nosebleeds look much worse than they really are. Almost all nosebleeds can be treated at home.If you get a nosebleed, sit down and lean slightly forward. Keeping your head above your heart will make your nose bleed less. Lean forwards so that the blood will flow out of your nose instead of down the back of your throat. If you lean back, you may swallow the blood. This can make you unfortable.Use your thumb and index fingers to press together the soft part of your nose. Keep holding your nose until the bleeding stops. Don39。t let go for at least 5 minutes. If it39。s still bleeding after that, hold it again for 10 minutes straight. You can also place an ice pack across the toe of your nose. Once the bleeding stops, don39。t do anything that may make it start again, such as bending over or blowing your nose.The most mon causes of nosebleeds are dryness (often caused by indoor heat in the winter) and nose picking. These two things work together173。nose picking occurs more often when the liquid in the nose is dry. Other, less mon causes include injuries, colds or cocaine use. Children may stick small objects up their nose. Old people may have infections or high blood pressure. The cause of nosebleeds is often unknown.Most nosebleeds aren39。t serious. They occur in the front part of the nose and stop in a few minutes.A few nosebleeds start in large vessels(血管) in the back of the nose, which can be dangerous. They may occur after an injury. This type of nosebleed is more mon in the elderly and is often due to high blood pressure, daily aspirin use or bleeding disorders.51．According to the text, nosebleeds________.A. are not frightening to get or see [來(lái)源:]B. are usually not serious and can be cured with the right method at homeC. must be treated by doctors in the hospitalD. aren39。t dangerous at all答案：B　推理判斷題。由第一段最后一句可知B項(xiàng)正確，其余選項(xiàng)與文章不符。52．Which of the following is NOT the right way to treat nosebleeds?A. Cool your nose with ice or other cold things.B. Press your nose slightly with your fingers.C. Lean backwards to slow down the flow of flood.D. Lean your head forwards, just above your chest.答案：C　細(xì)節(jié)理解題。由第二段第一句可知，正確的方法是lean forwards，而不是lean backwards。53．What39。s the main idea of Paragraph 4?A. Nosebleeds are caused by some diseases.B. Nosebleeds are caused by the dry weather.C. Your nose may be infected.D. The causes of nosebleed.答案：D　主旨大意題。第四段主要講述了流鼻血的原因。54．When does nose picking often cause nosebleeds?A. When your nose feels dry.B. When you have a cold.C. When you have a headache.D. When the liquid in your nose is wet.答案：A　細(xì)節(jié)理解題。根據(jù)第四段第二句可知鼻腔干燥常引起流鼻血。55．Which of the following is TRUE according to the passage?A. It may be more dangerous if the back part of your nose bleeds.B. Nosebleeds can cause the disease related to blood pressure in older people.C. Nosebleeds occur to kids because of infections.D. Many nosebleeds are not as serious as they look.答案：A　細(xì)節(jié)理解題。根據(jù)最后一段第一句可知鼻子后部的血管流血會(huì)更嚴(yán)重。Ⅳ.寫(xiě)作(25分)中暑是非常普遍的一種疾病，嚴(yán)重者可以危及生命。請(qǐng)根據(jù)圖片內(nèi)容并結(jié)合自己所了解的常識(shí)，寫(xiě)一篇介紹中暑以及如何對(duì)中暑患者進(jìn)行急救的短文。詞數(shù)：120～150。參考詞匯：中暑heatstroke；抬起elevate；保持呼吸通暢maintain an open airway________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________參考范文：Heatstroke is an illness caused by being in great heat for too long. The most important characteristic of heatstroke is the high body temperature.Care should be centered on lowering the body temperature as quickly as possible. Failure to do this may result in death. The right first aid measures for heatstroke are as follows：First, have the victim lie down and elevate his or her feet. Be sure to maintain an open airway of the victim. Then，try to move the victim to a cool environment. After this, apply cold and wet towels to the victim and use a fan to lower his or her temperature. If possible, have the victim drink some water or something like that. The last but most important step is to transport the victim to the hospital in time.23