中学英语单词用法总结学习精编their和then和there等
their   [ðeə]
pron.他们的；她们的
Children depend on their parents for clothing.小孩依赖他们的父母供给衣食。

theirs   [ðeəz]
pron.他(或她、它)们的(名词性物主代词)
They were off to visit a friend of theirs.他们动身去拜访他们的一个朋友。

them    [ðem; ðəm]
pron.他们；她们（宾格）
If anyone arrives early, ask them to wait.如果有人早到，就让他们等会儿。
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themselves  [ð(ə)m'selvz]
pron. 他(她、它)们自己
They painted the house themselves.他们亲自油漆了房屋。
They finished the work by themselves.他们自己完成了这项工作。[ by themselves单独(独立)地〕

then  [ðen]
adv. ①当时.那时;②然后，那么(通常用于句首或句尾)
He’ll be looking for a new secretary then.那么.他就要找个新秘书了。
From then on，I lived with my parents.从那时起，我和我父母一起生活。

there  [ðeə; ðə]
int. 那！你瞧（表示引起注意）‖adv.  在那里；往那里 ‖pron. （作为引导词）表示“存在
He drove quickly in order to get there  on time. 他开得飞快，以便准时赶到那里。
'There are millions of books published every year in Japan,现在日本每年出版成百万册书。
He, with his mother, lives near there. 他和他的母亲住在附近的那个地方。
 短语：1.here and there 处处，到处
      2.over there 在那边

What exactly is technology? There aren't any easy answers. Despite the fact that technology has re-mained one of the most controversial areas of modern science, especially when linked to human life or so-cial morals, much progress has been made in recent years, which has made the experts and common peo-ple think again.
Technology is the application of knowledge to production. Thanks to modern technology, we have been able to increase greatly the efficiency of our work force. New machines and new methods have helped cut down time and expense while increasing overall output. This has meant more production and a higher standard of living. For most of the ordinary people, modern technology is thought of as the reason why we can have cars, television sets, cell phones, robots and so on. However, technology has also increased the a-mount of food available to us, by means of modern farming machinery and animal breeding techniques, and has extended our life span through medical technology.
Will mankind continue to live longer and have a higher quality of life? In large measure the answer depends on technology and our ability to use it widely. If we keep making progress as we have over the past fifty years, the answer may be yes. The advancement of technology depends upon research and devel-opment, and the latest statistics show that developed countries are continuing to pump billions of dollars every year into such efforts. So while we are running out of some scarce (稀少的) resources we may well find technological substitutes for many of them through our research programs．
Therefore, in the final analysis the three major factors of production（land, labor and capital）are all influenced by technology. When we need new skills or techniques in medicine, people will start developing new technology to meet those needs. As equipment proves to be slow or inefficient, new machines will be invented. Technology responds to our needs in helping us maintain our standard of living.
32. Which of the following statements best summarizes the author's main points？
A. Science is the most important part of modern technology．
B. Technology has nothing to do with the major factors of production．
C. Modern technology is the key to the improvement of standard of living．
D. Technology leads to more needs in production and human life．
33. What's the author's attitude toward modern technology？
A. Favorable． B. Indifferent． C. Negative． D. Doubtful．
34. What could be inferred from Paragraph 3？
A. Technology has increased the amount of food．
B. Technology can definitely make people live long．
C. Technology can soon create non-renewable resources．
D. Technology progress depends on more expenses and efforts．
35. Where is this article probably from？
A. A report to the government． B. A school textbook．
C. Latest news in a newspaper． D. A scientific magazine．

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