Download
Alien species of plants and animals will become an increasing menace over the next decade due to the rapid development of the world economy and a lack of awareness of proper prevention measures, experts have warned.
A greater number and variety of invasive species may be accidentally introduced into China with the rapid growth of world trade, tourism and transportation, said Wan Fanghao, director of the department of invasive biology at the institute of plant protection under the Chinese Academy of Agricultural Sciences.
This will threaten agriculture and even human health, Wan said.
Imported agricultural products, packing boxes and containers can easily act as alien carriers,he told China Daily.
An invasion of alien species can cause untold damage if adequate measures to tackle it are not taken, he added.
China, one of the countries most affected, has confirmed more than 520 varieties of alien species, including 268 plants, 198 animals, and microorganisms.
Annual economic losses in China caused by the presence of just 13 alien species, including whitefly, leaf miner and rice-water weevil, exceed 57 billion yuan ($9 billion), academy figures showed.
Border quarantine officers registered more than 320,000 detections of 3,400 harmful species at entry points in the first nine months of last year, according to figures from the General Administration of Quality Supervision, Inspection and Quarantine.
Insects account for about half of the harmful species detected.
Other harmful species include weeds, roundworms, fungi, bacteria and viruses.
On Tuesday, the administration ordered stricter inspections on fruit imports from the Philippines after harmful organisms were found in several shipments.
It said insects and bacteria had been found in pineapples, bananas and other fruits imported from the Philippines in Shanghai, Shenzhen and Shandong.
Some invasive species, that could have been tackled or eliminated by strict prevention and control measures, now prevail across the country, experts said.
Questions:
1. What activities may be accidentally introducing invasive species into China?
2. What do the invasive species threaten?
3. How many harmful species were detected at entry points?
Answers:
1. Rapid growth of world trade, tourism and transportation.
2. Agriculture and human health.
3. 320,000.
About the broadcaster:
Emily Cheng is an editor at China Daily. She was born in Sydney, Australia and graduated from the University of Sydney with a degree in Media, English Literature and Politics. She has worked in the media industry since starting university and this is the third time she has settled abroad - she interned with a magazine in Hong Kong 2007 and studied at the University of Leeds in 2009.
雅思口语天天练:我支持你
教你如何顺利通过雅思口语考试
雅思口语天天练:英文绕口令-小甜饼
雅思口语考试流程模拟练习
雅思口语天天练:表达感谢的几种方式
看电影学雅思:《泰坦尼克号》口语解析
雅思口语天天练:如何拒接邀请
看电影学雅思:《当幸福来敲门》口语解析
雅思口语天天练:休假的英语表达
雅思口语天天练:"你擅长的"怎么说
看电影学雅思:《长发公主》口语解析
赵莉:雅思口语经典难题解析
雅思口语天天练:鼓起勇气的英文说法
吕冰:雅思口语考试流程介绍
雅思口语天天练:人言可畏
雅思口语范文:an adventurous person
雅思口语高频小词整理(上)
雅思口语必备的32个TOPIC
雅思口语常用谚语80句(1)
雅思口语天天练:如何请别人安静?
雅思口语模板参考:Friends
雅思口语天天练:没钱了
雅思口语天天练:你的XX像你XX的
王宪:雅思口语考试趋势分析
雅思口语天天练:又闷又热 Stuffy
雅思口语常用谚语80句(4)
雅思口语模板参考:Music and travelling
雅思口语天天练:进退两难的表达
看电影学雅思:《狮子王》口语解析
看电影学雅思:《乖乖女是大明星》口语解析
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |