求科普英语文章!(五年级的最好) ,要配中文!!!!!!!!!!!!!!!!
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/05 23:27:07
求科普英语文章!(五年级的最好) ,要配中文!!!!!!!!!!!!!!!!
求科普英语文章!
(五年级的最好) ,要配中文!!!!!!!!!!!!!!!!
求科普英语文章!(五年级的最好) ,要配中文!!!!!!!!!!!!!!!!
Does Technology Reduce Social Isolation?
Hundreds of daily updates come from friends on Facebook and Twitter,but do people actually feel closer to each other?
每天在Facebook和Twitter上都有朋友们数以百计的更新,但实际生活中人们是否感觉彼此更亲近呢?
It turns out the size of the average American’s social circle is smaller today than 20 years ago,as measured by the number of self-reported confidants in a person’s life.Yet contrary to popular opinion,use of cellphones and the Internet is not to blame,according to a new study released Wednesday by the Pew Internet and American Life Project.
根据互联网与美国生活专案周三发布的一项最新调查,在计算过美国人日常生活中自己认为的密友知己的数量后,事实证明当代美国人社交圈子的平均人数比他们20年前要小.但是与当前流行的观点所不同的是,这并不归罪于手机的使用和网络的普及.
In fact,people who regularly use digital technologies are more social than the average American and more likely to visit parks and cafes,or volunteer for local organizations,according to the study,which was based on telephone interviews with a national sample of 2,512 adults living in the continental United States.
根据一项调查表明,事实上经常使用数字技术的人比普通的美国人更具社交性,而且也更多的游览公园,光顾咖啡馆或更多的参加当地的志愿者活动.该项调查通过电话采访了美国本土大陆的2512名成年人.
The study found some less-than-social behavior,however.People who use social networks like Facebook or Linkedin are 30 percent less likely to know their neighbors and 26 percent less likely to provide them companionship.
这项调查也发现了一些不太符合社交性的习惯的行为,那就是,经常使用社交网站Facebook和Linkedin的人不太喜欢去认识他们的邻居,有26%的不喜欢和邻居交往.
The circle of close friends for mobile phone users tends to be 12 percent larger than for nonusers.People who share online photos or instant messages have 9 percent larger social circles than nonusers.
经常使用手机的人,他们的好朋友圈子比不使用手机者常常要多12%,在网上分享自己的照片和及时信息的人,他们的好朋友圈子比不使用者常常要多9%.
The study also found that people still prefer face-to-face communication as the primary means to stay in touch with friends and family (people see loved ones in person an average of 210 days a year).Respondents said that they were in touch via mobile phone an average of 195 days a year.
这项调查也发现人们更喜欢面对面的沟通,这是他们和好友和家庭成员保持联系的最重要的方式(人们一年中有210天会亲自看自己的亲人).被调查者说他们一年中平均有195天通过手机和他们联系.
"Medicine" Build Overall Planning
"Medicine" Build Overall Planning
It is important physical foundation that drugs could keep and promote the human health, improve li...
全部展开
"Medicine" Build Overall Planning
"Medicine" Build Overall Planning
It is important physical foundation that drugs could keep and promote the human health, improve living quantity and prolong the mean life of the human. Medicinal industry is a high input, high output promising industry with vast market foreground. Continuously advancement of the ab
ility of research and development, production capacity and the technical level, not only ensure the human health, but also is significant for the adjustment and optimization industrial structure, the development of district economy.
For its special property and position, medicinal industry is always concerned. With the progress of biological technique and continuously increment of live standard, it endows the medicinal industry with the vitality. The emergences of medicine valley, medicine harbor, Medicine City and mus ltinational medicine group in China and overseas, indicate that worldwide medicinal industry have become the most competitive industrial evaluative realm nowadays. All the cities and districts, regarding medicine industry as predominate industry, face unprecedented opportunity and challenge. The Shijiazhuang district is production base of traditional Chinese medicinal materials, and also is one of the quickest cities in medicinal industry after the reformation and open. After development of five decades, Shijiazhuang had become the city of the medicinal industry mainly with chemistry raw material medicine production. Facing against the pressure of competition, for the Shijiazhuang transition from the large mus nicipal to the mighty mus nicipal, further setting the pace for the mus nicipal medicinal feature and consolidation and elevation the status of Shijiazhuang in China and overseas, we especially made a general construction planning of Medicinal City in Shijiazhuang according to the national industrial policy, economic function location of Shijiazhuang made by State Department and physical situation of mus nicipal medicinal industry development.
1、Construction basis of Medicinal City
1)Developments background of Medicinal City
International background
Since 1975, worldwide medicine industry disengaged from the traditional industry cling to chemical industry already became a sturdy industry system and a support of the world economy. According to statistic, the sale income of worldwide drugs come to US$368 billion in 2000. Medicinal industry will keep the high-speed development in 21 century, the sale volume will reach US$ 540 billion in 2005 and will up to US$ 800 billion.
The gravity center of drug and biological pharmacy industry of current world primarily locate in the developed region and nation, such as Japans, United States, Europe, and formed some mus ltinational medicine industry groups with the global influence in the competition, The sale income of three greatest mus ltinational medicine groups, Huirui, Grance-Slick and Mock, all exceed US$20 billion. Through the development and differentiation of more than 20 years, the configuration pattern of global medical care resource had formed, the trend will be certain that medicine origin in chemical raw material would be transferred from developed nation to developing nation, and Chinese drugs internationalize.
Domestic background
Since the national reformation and open, with the breakthrough of pharmaceutical technology the system medicine the technique continuously obtain the push of the new breakthrough, the medicine industry stepped into a fast stage of development, and already became one of the rapidly develop industries in the national economy, the medicine industry scale continuously enlarge. According to the statistic report, 233.2 billion RMB industry increment value was acquired by the whole industry, medicinal enterprise counted already reach 3613 by the end of 2000. Among them, there were 5 enterprises that the annual sale above exceed 3 billion RMB , such as North China Pharmaceutical factory, Harbin medicine group, 999 group, Shijiazhuang medicine group, Shandong Xinhualukang group, the sale sum of 5 enterprises reach 150.9 billion RMB and formed 7 medicinal concentrative cities, for instance Shanghai, Shijiazhuang, Guangzhou, Harbin, Shenyang, Chongqing and Tonghua.
Now, chemical material medicine and medicinal intermediate had already been close to the international advanced level in China, and become the largest exporter of chemical material medicine in the world. Among them, the penicillin yield account for above 30% of global yield, the Vitamin C account for about 50% of global yield and or so 90% above of them is exported. Various biological products in China already are up to 300, and in new century, a serial of relevant products, such as biological pesticide, medicinal organism regened, medicinal foods, health protection food, medical apparatus and instruments, sanitary fixture, medicinal packaging material and etc all step into a fast stage of development.
收起
What 10 years of Apple did to its main product
What 10 years of Apple did to its main product?
By Matt Tinsley, Sep 24th 2010
How time flies! In the year 2000, I was just finishing high sc...
全部展开
What 10 years of Apple did to its main product
What 10 years of Apple did to its main product?
By Matt Tinsley, Sep 24th 2010
How time flies! In the year 2000, I was just finishing high school, listening to Bush, and becoming acquainted with Windows 2000. Back then, I knew very little about Apple, and I'd certainly not heard of the Bondi Bubble iMac (the first iMac was released in 1998). In 2010, well...how things have changed for me!
And, as illustrated by Brett Jordan in the graphic above, things have also changed at Apple.
It's incredible to think that the iPhone has taken center stage at Apple over the last three years. As noted by some of our commentators, there has been a real lack of Mac-centric news recently. Sure, there was the update to the iMac a few months ago, but it's glaringly obvious that the Mac has taken a back seat to the iPhone -- certainly in the limelight department. In fact, I'm reveling in the fact that I'm writing about the iPhone and the iMac at the same time!
Today, the Mac is the center of our digital hub, but it's no longer the center of our digital world. When we leave the house / office / room where the Mac lives, it's the iPhone ( iPad / iPod touch) that is constantly in our hands, and Apple knows it!
Of course, we have to come back to our Macs eventually (in my case, repeatedly, everyday) because the iPhone can't do everything that we want it to, or even some of the things that we want done well, yet. But just looking at this picture shows how far things have come, and how the direction taken by personal computing is becoming even more personal.
The only feature of the iPhone 4 that doesn't beat the iMac of yesteryear is screen real estate. The processor and RAM are double the capacity of the iMac, the iPhone's storage is 2 gigabytes larger, and it's flash-based memory. And of course, it's tiny in comparison. As noted by Obama Pacman, it's Moore's law in effect.
But when will it end? In 10 years time, will we have an iPhone that's five times smaller than the current one, but more powerful than the personal computers of today? Who knows? That might be a weird phone, but anything could happen. For now, I'm still stuck with my iPhone 3G, and I think it might still have some Bush on it. In the meantime, I'm just looking forward to getting the iPhone 4!
http://www.yeeyan.org还有更多
收起