答案 B [词义猜测题。根据第三段的“... his program uses historical data to predict traffic conditions even before the driver leaves the house.”以及第四段内容,不难判断hit the road为“上路”的意思。]
4.What's Professor Shahabi's attitude toward his invention?
A.Disappointed.
B.Proud.
C.Optimistic.
D.Worried.
答案 C [推理判断题。由文章第四段的“... certainly are examples that can immediately use this.”可知谢哈比教授希望自己的发明能够得到进一步推广,对它的发展前景很乐观。]
Passage 2限时:7分钟
体裁:说明文 题材:科普类 难度:易词数:286
[2016·枣强中学期末]
Eating 40 percent less food could extend a person's life by 20 years, according to scientists.
Researchers at the Institute of Healthy Aging at University College London are developing a treatment that they hope will fight the “disease” of getting older.
They are looking into how genetics (遗传学) and lifestyle can affect aging and add years, possibly decades, to a person's life.
Agerelated diseases such as cardiovascular diseases, cancer and neuro degeneration can also be treated, it is claimed.
They want to find out how the life of a rat can be increased by up to 30 percent simply by reducing its food intake.
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