题目内容
The virus “Ebola” is named after the Ebola River in what is now the Democratic Republic of the Congo. That’s where the virus was discovered in 1976. A person can only get Ebola through direct contact with an infected person’s bodily fluids, for example, sweat or spit. Additionally, the virus can get into your body through your eyes and mouth if those areas come into contact with something that contains the bodily fluids of an infected person. That’s why health care workers are supposed to keep themselves completely covered while treating patients.
The deadliest Ebola outbreak is spreading fast in Western Africa, taking over 900 lives so far. The health systems in Guinea, Sierra Leone and Liberia are severely lacking in resources, and health care workers may not have access to adequate protective clothing when working in rural clinics, where the proper protections are lacking. Since Guinea, Sierra Leone and Liberia share a border; it’s easier for people to move from one country to another, increasing the risk for disease spread.
For now, all doctors can do is treat the symptoms and provide supportive care like monitoring heart rate, blood pressure, and breathing while making sure the patients’ fluids are supplied. Sometimes patients are given antibiotics(抗生素) to treat other possible infections. The hope is to make the patient pull through the infection so their immune system can eventually clear the virus. The people who survive Ebola have created enough antibodies to kill it.
There are several promising drugs and vaccines in development, but since Ebola is less common—and research about it is not well funded — there is no drug or vaccine that has been approved for use in humans. Many of the other drugs and vaccines have not yet been tested in humans. The WHO (World Health Organization) is meeting next week to discuss whether experimental treatments should be used during this outbreak.
1.According to the passage, Ebola only spreads through _________.
A. patients’ sweat B. bodily fluids
C. people’s spit D. your body
2.Which is the possible reason why Ebola spreads in West Africa quickly?
A. The Ebola river is polluted by the virus.
B. There aren’t any protections.
C. The protective clothing is adequate.
D. Three western countries share a border.
3.Why have there been no cures used for Ebola in humans so far?
A. There are not enough drugs for the infected people.
B. Ebola is rare and its research money is lacking.
C. The people have enough antibodies to kill Ebola.
D. The WHO has decided not to use them.
4.Which of the following can be the best title?
A. The Prevention from Ebola.
B. No Cure for the Virus “Ebola”.
C. The Deadliest Ebola in Africa.
D. Introduction to the Virus “Ebola”.
1.B.
2.D
3.B
4.C
【解析】
试题分析:一场始于西非的致命疫情---埃博拉,不到半年便成为国际关注的突发公共卫生事件,几内亚、塞拉利昂、利比里亚已经因埃博拉病毒危机而宣布进入全国紧急状态。由于埃博拉病毒很罕见,而且缺乏资金,至今没有治愈的方法。
1.】细节理解题。根据第一段A person can only get Ebola through direct contact with an infected person’s bodily fluids, for example, sweat or spit.得知埃博拉病毒通过体液传播,例如,汗水或唾液。 选B。
2.】细节理解题。根据第二段Since Guinea, Sierra Leone and Liberia share a border; it’s easier for people to move from one country to another, increasing the risk for disease spread. 得知因为西非的三个国家几内亚、塞拉利昂和利比利亚只有一个边境,人员流动快,当然传播病毒也很快。故选D。
3.】推理判断题。根据最后一段but since Ebola is less common—and research about it is not well funded得知由于埃博拉病毒很罕见,而且缺乏资金,故选 B。
4.最佳标题。全文主要在讲述爆发在西非的致命疫情---埃博拉,因此选C。
考点:医学类文章
Until just a few years ago,we doctors believed that the brain stopped making new neural(神经系统的)connections (meaning that your memory began to get worse)when the body stopped developing,usually in your early 20s. And we knew that,like any other body part,neurons weaken as we age. Loss of brain function due to neural breakdown was assumed to be a normal,unavoidable part of aging.
It turns out that we were wrong. In the past few years,it has been discovered that you can,in fact,make new neurons starting in your 20s and continuing well into old age. You can literally rewire the brain with new parts as the older parts wear out. How?Simple:Keep learning. Just as your body can pack on and condition new muscle,your brain can rebuild used-up neurons.
How strong is the evidence for this?Strong enough that a $200 million industry devoted to brain boosting software (products like Brain Age,MindFit,and Lumosity that supposedly improve your memory function)has sprung up out of nowhere. All“mental fitness”means are keeping your memory intact(everything from phone numbers to how to throw a football).So what can you do to stay smart?
Keep blood pressure down. People with high blood pressure are more likely to develop cognitive impairment later in life.
Eat more vitamins. Like E(in nuts and sunflower seeds),B6 and B12(beef,tuna),and folic acid(leafy greens,citrus,berries),which help keep your brain’s chemistry in balance.
Exercise your brain. This is the best way to rebuild and strengthen those precious neurons. Learn to play chess or the guitar. When you’re at a stoplight,try to recall the starting lineup of the 1983 Celtics. See a movie that doesn’t feature Ben Stiller. Or read,like,a book.
Title:How to keep the 1.________smart?
Previous 2.____ | The brain no longer makes new neural connections once the 3.________ of one’s body has stopped. |
New 4. ________ | ●New neurons continue to occur even in one’s old age. ●5.________contributes to the development of the new parts of your brain. ●Many products which claim to improve your brain function appear in 6.the _________. |
7. _______ | ●Keep yourself away from 8._________blood pressure. ●9._________in more vitamins for the needs of your brain. ●10._______your brain as much as you can. |