发布时间 : 星期四 文章北京市海淀区2017届16年11月期中考试 高三上学期期中考试英语试题（解析版） - 图文更新完毕开始阅读2efe3e4fbf1e650e52ea551810a6f524cdbfcb5a
B
Have you ever lost your car on a parking lot? You don’t have a clue where your car is after shopping. Then you start walking around clicking on your car keys so the alarm goes off. It can be annoying, especially on a hot sunny day.
No, you needn’t install(安装) an expensive GPS system to keep track of your car. That’s too expensive. You would need to pay a monthly fee to use it.
But is there a way to track your vehicle without spending a fortune? Yes, now there is! A California-based company has created a tiny device that works with your smartphone, which could be exactly what you’re looking for! ? What is it?
It’s called TrackR. It is a state-of-the-art tracking device the size of a coin. It’s changing the way we keep track of the important things in our lives.（60题） ? How does it work?
It’s easy! Install the free TrackR app on your smartphone, connect the app to your device and you’re ready to go! Simply attach TrackR to whatever you want to keep an eye on. The entire process of setting it up only takes 5 minutes or less.
You can attach it to your keys, briefcase, wallet, your latest tech gadgets and anything else you don’t want to lose. Then use the TrackR app to locate your missing item in seconds.（60题）
If you forget where you have parked your car, pull out your smartphone and open the TrackR app. Tap on the “find device” button on the screen and the app will tell you the exact spot of the last known location of the TrackR.
? What else can I do with TrackR?
The device is small and unnoticeable enough that you can attach it to your pet. Put it on their collar, and the issue of searching for them when they run away to nearby places will be over! You’ll never waste a minute searching the whole house for it.
TrackR even comes with a double-sided glue so you can stick it to your laptop or under your bike seat. Track down and punish the thieves who steal your expensive things! ? How much does it cost?
You’re probably thinking that this device is very expensive. False! TrackR only costs $29! That’s a small price to pay for peace of mind, isn’t it?
? Where can I buy one?
You
can
buy
it
directly
from
the
company’s
website
by
clicking
here
https://buy.thetrackr.co/gu/special-offers/15/ .（62题）
60. From the passage, we learn that TrackR can ______. A. help you locate your important things B. track your wallet through GPS system C. work better after you pay monthly fee D. take good care of your pets at home 61. This passage is mainly developed by ______. A. answering questions C. listing advantages
B. providing statistics D. making comparisons
62. Where is this passage most likely taken from? A. A research report. B. A website.
60．A
C. A personal blog. D. A journal.
【解析】细节理解题。根据文章第四段的句子“It’s called TrackR. It is a state-of-the-art tracking device the size of a coin. It’s changing the way we keep track of the important things in our lives.”可知，TrackR帮助你定位重要的东西。故选A。
61．A
【解析】推理判断题。根据文章每部分的黑体的小标题，可知，文章首先是提问，然后解决问题。故选A。
62．B
【解析】推理判断题。根据文章最后一段的句子“You can buy it directly from the company’s website by clicking here https://buy.thetrackr.co/gu/special-offers/1/ .”可知，文章可能是选自网站。故选B。 【备注】文章介绍一家加利福利亚的公司发明的手机装置TrackR，可以帮助人们定位重要的东西，并很容易地找回它们。
C Old Fossils
Scientists have found what they think is probably the oldest fossil on Earth, a remnant of life from 3.7 billion years ago when Earth’s skies were orange and its oceans green.
In a newly melted part of Greenland, Australian scientists found the leftover structure from a community of microbes(微生物) that lived on an ancient seafloor. Based on their analysis of the fossils, the researchers determined that they are 220 million years older than those discovered in Western Australia, which were 3.48 billion years old.（66题）
The discovery shows life may have formed quicker and more easily than once thought, about half a billion years after Earth formed. And that may also give hope for life forming elsewhere, such as Mars, said study co-author Martin VanKranendonk of the University of New South Wales and director of the Australian Center for Astrobiology. “It gives us an idea how our planet evolved and how life gained a foothold,” VanKranendonk said.（63题）
Scientists had thought it would take at least half a billion years for life to form after the molten Earth started to cool a bit, but this shows it could have happened quicker, he said. That’s because the newly found fossil is far too complex to have developed soon after the planet’s first life forms, he said.（64题）
In an outcrop of rocks that used to be covered with ice and snow which melted after an exceptionally warm spring, the Australian team found stromatolites(叠层石), which are layered structures that are often produced by a community of microbes. The stromatolites were about 1 to 4 centimeters high.
“It is like the house left behind made by the microbes,” VanKranendonk said. “Scientists used the layers of ash from volcanoes and tiny zircon(锆石) with uranium and estimated that they date back to 3.7 billion years ago.”
The dating seems about right, said Abigail Allwood, a NASA astrobiologist who found the previous oldest fossil, from 3.48 billion years ago, in Australia. But Allwood said she is not completely convinced that what VanKranendonk’s team found once was alive. She said the evidence wasn’t conclusive enough that it was life and not a geologic quirk(地质巧合).（65题） “It would be nice to have more evidence, but in these rocks that’s a lot to ask,” Allwood said in an email.
63. The underlined words “gained a foothold” in Paragraph 3 mean______. A. continued
B. changed
C. increased
D. started
64. We can learn from Paragraph 4______.
A. the fossil appeared soon after the birth of the earth
B. the fossil formed soon after the earth’s first life C. life formed earlier than the newly found fossil D. life appeared about half a billion years ago
65. What is Abigail Allwood’s attitude towards the newly found fossil?
A. Neutral. B. Sceptical. C. Objective. D. Supportive. 66. According to the passage, ______. A. the previous fossils are a geologic quirk B. the previous fossils are made up of stromatolites C. the newly found fossils come from Western Australia D. the newly found fossils have a history of 3.7 billion years
63．D
【解析】词义猜测题。根据文章第三段的句子“It gives us an idea how our planet evolved”这让我们了解星球是怎么形成的，下文是生命是怎么开始的。可知，“gained a foothold” 意为“开始”。故选D。
64．C
【解析】推理判断题。根据第四段的句子“the newly found fossil is far too complex to have developed soon after the planet’s first life forms, he said.”可知，生命形成要早于新发现的化石。故选C。
65．B
【解析】观点态度题。根据文章最后一段的句子“She said the evidence wasn’t conclusive enough that it was life and not a geologic quirk(地质巧合).”可知，Abigail Allwood 对于新发现的化石态度是怀疑的。故选B。
66．D
【解析】细节理解题。根据文章第一段的句子“remnant of life from 3.7 billion years ago”和第二段的句子“the researchers determined that they are 220 million years older than those discovered in Western Australia, which were 3.48 billion years old.”可知，新发现的化石有37亿年历史。故选D。 【备注】文章介绍科学家发现距今37亿年前的化石。
D
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