【正文】 om this fly puts you into a deadly sleep.C.A mosquito that can carry deadly diseases.D.The parasite causing ＂sleeping sickness＂ is easy to detect now.C.＂Sleeping sickness＂ will be pletely eliminated by 2020.D.If left untreated, it can possibly be deadly.C.It is formally called＂human American trypanosomiasis＂.D.all species of tsetse fly can transmit diseasesC.it can put its thin mouthpart directly into your blood More problematically, a series of new studies have shown that the parasite is more plicated than previously believed. Since then, better screening programmes and earlier interventions have reduced the number of cases dramatically. In 2009 there were fewer than 10,000 cases for the first time since records began, and in 2015 this figure dropped to fewer than 3,000, according to the latest figures from the World Health Organisation. The WHO hopes the disease will be pletely eliminated by 2020. While medication does help, some treatments are toxic and can themselves be deadly, especially if they are given after the disease has reached the brain. There are two closelyrelated singlecelled parasites that cause this deathly sleep: Trypanosoma brucei rhodesiense and T. b. gambiense. The latter is far more mon: it is responsible for up to 95% of cases, mostly in western Africa. It takes several years to kill a person, while T. brucei rhodesiense can cause death within months. There are still other forms that infect livestock. Like so many tropical diseases, sleeping sickness has often been neglected by medical researchers. However, researchers have long endeavored to understand how it avoids our bodies39。s mouth has tiny saws on it that saw into your skin on its way to suck out your blood.最新高一英語閱讀理解的基本方法技巧及練習(xí)題及練習(xí)題(含答案)一、高中英語閱讀理解1．閱讀理解 A bite from a tsetse fly (采采蠅) is an extremely unpleasant experience. It is not like a mosquito, which can put its thin mouthpart directly into your blood, often without you noticing. In contrast, the tsetse fly39。 To make matters worse, several species of tsetse fly can transmit diseases. One of the most dangerous is a parasite that causes ＂sleeping sickness＂, or ＂human African trypanosomiasis＂to give it its official name. Without treatment, an infection is usually fatal. defence mechanisms. Some of their insights could now help us eliminate sleeping sickness altogether. After the initial bite, sleeping sickness symptoms often start with a fever, headaches and aching muscles. As the illness goes on, those infected bee increasingly tired, which is where it gets its name. Personality changes, severe confusion and poor coordination can also happen. It is worth noting that sleeping sickness is no longer as deadly as it once was. In the early 20th Century several hundred thousand people were infected each year. By the 1960s the disease was considered ＂under control＂ and had reached very low numbers, making its spread more difficult. But in the 1970s there was another major epidemic, which took 20 years to control. While this decline looks positive, there may be many more cases that go unreported in rural Africa. To eliminate the disease pletely, infections have to be closely monitored. Sleeping sickness has always been considered —— and diagnosed —— as a blood disease, because T. brucei parasites can readily be detected in the blood of its victims.（1）A tsetse fly is different from a mosquito in that________. A.B.it can spread a parasite that causes ＂sleeping sickness＂its mouth has larger saws than those on a mosquito（2）What can be learned about ＂sleeping sickness＂ according to the text ? A.B.It remains as deadly as it used to be.It usually draws attention from medical researchers.（3）What is implied in the last three paragraphs ? A.B.T. brucei parasites can only be detected in the blood of its victims.Data about ＂sleeping sickness＂cases may not be so accurate.（4）What would be the best title of this passage ? A.B.Symptoms that are characteristic of ＂sleeping sickness＂.How to control deadly＂sleeping sickness＂ from a tsetse fly.【答案】（1）C（2）B（3）D（4）B 【解析】【分析】本文是一篇說明文，作者介紹了70年代被采采蠅咬傷很容易感染疾病，傳播病菌，一定要小心。根據(jù)第二段中的＂several species of tsetse fly can transmit diseases. One of the most dangerous is a parasite that causes 39。,＂可知，采采蠅可以傳播一種寄生蟲，導(dǎo)致“昏睡病”故選C。根據(jù)第二段中的＂Without treatment, an infection is usually fatal.＂可知，如果不加以治療，它可能是致命的，因此選B。根據(jù)倒數(shù)第三段中的＂While this decline looks positive, there may be many more cases that go unreported in rural Africa.＂可知，非洲農(nóng)村可能還有更多的病例未報(bào)告，因此關(guān)于“昏睡病”病例的數(shù)據(jù)可能不那么準(zhǔn)確，故選D。整篇文章介紹了采采蠅，尤其說明它可以傳播一種＂昏睡?。ⅲ@種病會讓患者喪命，因此選B。2．閱讀理解 Our generosity and hospitality (好客), he replied in a strong local accent. Your car breaks down in the middle of nowhere, someone will stop to help. People here are kind like that. Little did I know we were about to experience some of that remarkable Newfoundland kindness for ourselves. Our teenagers hurried ahead, and as we walked behind, admiring the scenery, two women in sunglasses and summer hiking gear stopped. d heard us discussing different routes, then asked if we39。They looked to be in their 40s, and were both enthusiastic to share their local expertise. I explained that there were no cars available during our week on the island, so we had to rely on cabs instead. Dumbfounded, my husband and I just smiled in disbelief. But you don39。That doesn39。Stunned, I looked over at her friend, who shrugged and said, That39。Forty minutes of talking later, my family climbed into Alma39。We spent the rest of our vacation discovering different areas of this beautiful island. t the groups of whales we saw, or the vast areas of woodland, that made this place so memorable. Next year, there39。ll be taking our summer vacation. Who knows what act o