1、Wildlife Protection Posters 同步练习同步练习（答题时间：（答题时间：40 分钟）分钟）一、阅读理解Flu is a common infection of the nose and throat，and sometimes the lungs. The cause is avirus that passes from one person to another. The virus spreads through the air when an infectedperson expels air suddenly.Flu develops after the vir
2、us enters a persons nose or mouth. The flu causes muscle pain，sudden high body temperature，breathing problems and weakness. Generally，most people feelbetter after a week or two. But the flu can kill. It is especially dangerous to the very young，thevery old and those with weakened defenses against di
3、sease.Medical experts have recognized for some time that people become infected with flu duringthe winter months. But they did not really know why until recently.American researchers say they now know why the flu virus spreads in the winter and not inthe summer. They say it is because the virus rema
4、ins in the air longer when the air is cold and dry.Researchers in New York carried out twenty experiments with guinea pigs to investigate howthe virus spreads. The researchers found the virus spread the most when the temperature was aboutfive degrees Celsius and the humidity was twenty percent. Few
5、of the guinea pigs developed flu asthe temperature increased. The virus stopped spreading completely at thirty degrees Celsius andeighty percent humidity. The researchers also found that the animals spread the virus amongthemselves nearly two days longer when the temperature was low.One of the resea
6、rchers said the study shows that flu virus is more likely to infect peopleduring an outdoor walk on a cold day than in a warm room. He said cold air helps the virussurvive in the air and low humidity helps it stay there longer. That is because particles of the virusride on the extremely small drops
7、of water floating in the air. When the air is very humid，waterdroplets fall to the ground more quickly.The researchers say， however， that people should not stay in warm places all the time in coldweather to avoid the flu. They say the best way to prevent the sickness is to get yearly injectionsof a
8、vaccine that prevents flu.1. From the passage we can conclude that _.A. flu sometimes is deadly to weak peopleB. flu virus can be killed by the warm weatherC. flu virus can be killed by the low humidityD. animals get infected with flu easier than human beings2.According to the passage，why is a perso
9、n infected with the flu easily in winter?A. Because in winter people tend to stay in the warm room.B. Because in winter some people stay outdoor for long.C. Because flu virus survive longer in cold and dry weather.D. Because people are weaker in winter.3. Which of the following words can replace the
10、 underlined word in the first paragraph?A. Exposes.B. Breathes.C. Frees.D. Faces.4. Which of the following will probably be discussed next?A. How many kinds of flu have been identified.B. How bird flu affected human being.C. How the government controlled the flu.D. How much the vaccine will cost.二、阅
11、读七选五The MississippiThe Mississippi is a great river whose relationship with man goes way back beyond itsdiscovery in the 16th century. The River Indians used it as a highway and as a source of food, andit was they who gave it its name “misi” meaning “great” and “sipi” meaning “water”. When thelength
12、 of its branch, the Missouri, is added to it, the Mississippi becomes greater. 1. _.From the source of the Missouri to the tip of the delta (三角洲), it is 2,480 miles long.Great rivers are likely to suffer floods. In 1927 the Mississippi flooded 26 thousand acres,sweeping away farms, towns, everything
13、 in its path. In 1938 its floods drowned or killed 200people and made millions homeless. Today the river has largely been controlled. 2. _.Industries have spread down some of the waterways of the delta, but otherwise the delta is aremote place, the homeland of a little colony of French Canadians tha
14、t the British drove out ofNova Scotia in the 18th century. They still speak French, mixed with English, Indian, Spanish andNegro idioms. They keep to themselves, fanning the rich soil of the delta. 3. _4. _. Pioneers who first reached its banks wondered not only where it went, butwhat lay beyond. In
15、 1764 the French founded a city on the right bank of the river, and named itafter their king, Louis XV. This city, named St. Louis, became the jumping-off place for theadventurous men and women who opened up the Great Plains, and the way to the Far West.Some 40 years earlier, at the beginning of the
16、 18th century, the French had founded anothercity just above the Mississippi delta, New Orleans. 5. _ New Orleans is one of the greatports of the world, and one of the greatest terminals for both sea and river traffic.A. It was the Mississippi that made the city what it isB. Levees, high banks built
17、 of earth, hold back the flood watersC. Therefore, as we know, its the third longest river in the worldD. It is known that the “Great Water” has also been a frontier riverE. However, they paddled up and down the Mississippi in their boats to seek their fortuneF. The “Great Water” always remains a th
18、read (分界线), for the streets of the city are belowthe level of the riverG. They call themselves Cajuns, who have actually been leading fairly primitive lives andpreserving their own traditions三、写作假定你是李华， 正在英国接受英语培训， 住在一户英国人家里。 今天你的房东 Mrs Wilson不在家，你准备外出，请给 Mrs Wilson 写一留言条，内容包括：1. 外出购物2. 题房东还书3. Trac
19、y 来信留言：1）咖啡屋（Bolton Coffee）见面取消2）此事已告知 Susan3）尽快回电注意：1. 词数 100 左右；2. 可以适当增加细节，以使行文连贯。Wildlife Protection Posters 同步练习参考答案同步练习参考答案一、阅读理解1.A解析：推理判断题。文章第二段提到：It is especially dangerous to the very young，thevery old and those with weakened defenses against disease.所以对于身体比较弱的人来说， 流感有时是致命的疾病。2. C解析： 细节理解题
20、。 文章第四段提到： the virus remains in the air longer when the air iscold and dry.3. B解析：词义猜测题。从文意知病毒是通过空气传播的，故此处指当一个被感染的人突然呼气。所以用 breathe。4.A解析：推理判断题。前面讲了流感是什么，有什么样的危害，在什么情况下最容易感染，并提出了解决办法。所以后面最可能说明目前知道的流感有哪几种。二、阅读七选五1. C 考查上下文联系。 根据上句When the length of its branch, the Missouri, is added to it, theMississ
21、ippi becomes greater.加上它的支流密苏里河的长度，密西西比河变得更壮观了。因此密西西比河成为世界上第三大长河。故选 C 项。2. B 考查上下文联系。根据上句 Today the river has largely been controlled.现在密西西比河大部分已经得到控制，那么下句应该谈治理的手段。因此选 B 项。3. G 考查上下文联系。第三段主要讲三角洲历史和居民。G 选项的意思是：他们称自己为卡津人，保持着原始的生活方式和自己的传统。故选 G 项。4. D 考查上下文联系。根据下文讲述的密西西比河的历史，可以推断第一句是本段的主题句或过渡句。句意：众所周知，T
22、he Great Water 是一条边境河流。选 D 项。5.A 考查上下文推断。根据上句 the French had founded another city just above theMississippi delta, New Orleans.法国人在密西西比三角洲上建立了另一个城市，新奥尔良市。可知，是密西西比河塑造了新奥尔良市现在的样子。故选 A 项。三、写作参考范文：Mrs Wilson,Im going out shopping, and wont be back until about 5:00 pm. I have taken with me the twobooks y
23、ou asked me to return to the City Library.At about 1 oclock this afternoon, Tracy called,saying that she couldnt meet you at Bolton Coffee tomorrow morning as she has somethingimportant to attend to. She felt very sorry about that, but said that you could set some other timefor the meeting. She wanted you to call her back as soon as you are home. She has already toldSusan about this change.Li Hua
