下列物体中，不是生物的是（    ）

春秋战国时期的百家争鸣所涉及内容非常广泛，其中在“死亡与鬼神观”上“墨家利用，儒家闪烁，道家则淡然”。下列主张属于道家的是（    ）

材料一  我很幸运被任命担任现在的工作。中国已渐觉醒，而且急需铁路，现在全国各地都在征聘中国工程师。中国要用自己的资金来建设自己的路，由于我成了中国第一流的工程师，因此全体中国人和外国人都密切注视着我的工作。如果我失败，不仅是我个人的不幸，因为中国工程师不会再被人们所信赖，在我受命担任此工作前，甚至出任之后，许多外国人公开宣称，中国工程师决不可能担当如此艰巨的重任……

——詹天佑给美国老师的信

材料二  技术第一要求精密，不能有一点含糊和轻率。“大概”、“差不多”这一类的说法不应该出于工程人员之口。我国地大物博，而于一路之工必须借重外人，我以为耻！

——詹天佑

    Have you ever lost your direction? Then you might find satellite navigation(satnav) systems(卫星定位系统) helpful.

    A satnav system uses groups of satellites. They send information to a receiver(接收器), such as your smartphone. Then they can find where you are.

The earliest satnav system is the Global Positioning System(GPS) of the United States. The US has put 24 satellites into space to make sure GPS can locate(定位) a person correctly and globally. Likewise, Russia's GLONASS and European Union's Galileo can also work globally.

    But China is catching up, building its own BeiDou Navigation Satellite System. BeiDou is China's homegrown satnav system, reported Xinhua. It was set up in 2000, when China sent BeiDou's first navigation experiment satellite into space. With it, China became the third country to build a satnav system after the US and Russia.

    BeiDou can find you wherever you are. It helps you go faster by finding shortcuts(捷径) and using correct directions. When you are in trouble and call the police, they will know exactly where you are if you have a cellphone that uses BeiDou.

    Today, there are more than 20 BeiDou satellites above our heads. And the system is able to offer open services to the Asia-Pacific region(亚太地区).

    In November, China plans to send more BeiDou-3 satellites into space. BeiDou-3's position accuracy(准确度) is less than five meters, Ran Chengqi, a senior designer of the satellite navigation system, told China Daily.

    By 2020, BeiDou is planned to have 35 satellites and begin serving globally, reported Xinhua.

词型转换及翻译词组

buy（过去式）____制作一个电子贺卡____擅长 ____去图书馆____借书证____