A.calculate the value of
B.have confidence in
C.make a high assessment of
D.make a lower judgment of
【文章大意】本文是科普说明文。科学家通过实验预测,受全球气候变暖的影响,未来鱼类的体型将会缩小24%。
1.A 主旨大意题。文章介绍了科学家对600种鱼类进行电脑仿真模拟实验的情况。再结合第一段可明显看出答案为A项。
2.B 细节理解题。由第三段第四句中“the level of oxygen in the water is the key”以及第三段最后一句可知,海水含氧量的高低是影响鱼类体型大小的关键因素,故选B项。
3.B 数字计算题。由第四段中的“most fish populations will move towards the Earth’s poles at a rate of up to 36km per decade.”可计算出答案为B项。
4.D 词义推测题。文章最后一句表明,研究人员对大西洋中的鱼类体型进行研究记录的真实数据,比模拟实验预测的数据要小得多,可见模拟实验低估了鱼类真实的体型缩小程度。据此推断,underestimate应为“低估”之意。
二、语法填空(共10小题;每小题1.5分,满分15分)
As all amazing information resource,the Internet 1.(consider) one of the most powerful tools throughout the world.Students,teachers,and researchers use it as 2. investigative tool.Journalists use it to find information for stories.Doctors use it to learn more about unfamiliar diseases and the 3.(late) medical development.Ordinary people use it for shopping,banking,bill-paying,and communicating with family and friends.People all over the world use it to connect with individuals 4. are from different countries and cultures.However,5. there are many positive developments 6.(associate) with the Internet,there are also certain fears and concerns.One concern relates to a lack of control over 7. appears on the Internet.With television and radio there are 8.(edit) to check the accuracy or appropriateness of the content of programs,and with television there are restrictions on what kinds of programs can 9.(broadcast) and at what times of the day.With the Internet,parents cannot check a published guide to determine what is suitable 10. their children to see.
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