标签:harmful 相关文章
[00:01.96]易考范文十五 [00:04.81]What we can see are two shocking drawings. [00:10.17]In the first one, [00:11.37]black clouds of exhaust fume are emitted from a high chimney. [00:15.42]In the second, a signal tower stands instead of the ugly c
句法以句子为对象,研究句子的形式和用法。 1.句子成分:英语的句子大多由主语部分和谓语部分组成,句子成分是句中起一定功用的一个组成部分,句子成分可以分为8种; 主语:主语是句子的主体,是句子所要说明的人或事物,表示句子描述的是谁或什么,主语通常由名词、代
Scientists Create Method to Test Food and Drugs for Purity Millions of people in developing countries have to be on guard against contaminated food and medicine. Some products could be harmful -- even deadly. In Nigeria, brake fluid was found in a pr
Secondhand Smoke 二手烟 Secondhand smoke is the combination of sidestream smoke (the smoke given off by a burning tobacco product) and mainstream smoke (the smoke exhaled by a smoker). 二手烟包括侧流烟(烟草产品燃烧释放的烟)和主
Pre-Listening Vocabulary caffeine: a drug found in some plants, including coffee seeds and tea leaves pesticide: a substance that keeps insects or harmful materials away from a plant alert: awake and paying attention ward off: to keep away something
World Kidney Day is on the 12th of March. It started in 2006 and has grown quickly. In its first year, 66 countries celebrated it and two years later that number rose to 88. The day is a joint venture of the International Society of Nephrology and th
HEALTH REPORT - September 11, 2002: McDonald’s Changes its Oil By Nancy Steinbach This is the VOA Special English Health Report. McDonald’s says its fast-food eating places in the United States wi
This is the VOA Special English Agriculture Report. A farmer in his maize field near Arusha, Tanzania The maize streak virus causes one of the most destructive crop diseases in Africa. Not only is it economically damaging, it can also threaten food
BOB DOUGHTY: This is SCIENCE IN THE NEWS in VOA Special English. Im Bob Doughty. BARBARA KLEIN: And, Im Barbara Klein. Today, we will tell about stress and its effects on human health. Stress is a condition resulting from mental or emotional tension.
AS IT IS 2014-08-10 Increase in Algae Population Infects Waterways 藻类群体的增加污染水道 The American city of Toledo, Ohio faced a serious problem earlier this month. Four hundred thousand people could not drink from the citys public wate
Obama: US Supports Political, Economic Reform in Mideast, N. Africa In a major address on historic changes in the Middle East and North Africa, President Barack Obama says the United States stands firmly on the side of people protesting for democrati
银纳米粒子将防治真菌病害 Large farms use various chemicals to fight fungi and bacteria that attack crops, and others such as e. coli that are harmful to humans. 大规模农作物产地都会使用化学产品来抵御损害农作物的真菌
由as, which 引导的非限定性定语从句,as和which可代整个主句,相当于and this或and that。As一般放在句首,which在句中。 As we know, smoking is harmful to one's health.
AGRICULTURE REPORT December 17, 2002 — Irradiated Meat This is the VOA Special English Agriculture Report. The United States government has approved methods of destroying bacteria in meat by using r
今天我们要学的词是Earth Day。 Earth Day, 地球日。每年4月22号是地球日。 Since the first Earth Day in 1970, environmental awareness has become part of the economic and political mainstream, 自从1970年第一个地球日以来,环
今天我们要学的词是promote。 Promote是宣传、推动的意思。To promote a product, 是为一件产品做宣传,to promote awareness of environmental issues, 是宣传环保意识。 最近,美国棒球名人堂的新成员、前巴尔
TV: a Blessing or a Curse Nowadays television plays such an important role in pepople' s life that watching TV has become part of people' s life in many families. Is TV a blessing or a curse? Obviously, television, like anything else, has more than o
本期内容: There is little evidence screen use for children is harmful in itself, guidance from leading pediatricians says. It says there is no good evidence that time in front of a screen is toxic to health, as is sometimes claimed. While the g
Next time youre sitting in the tub, try the following experiment. Stand up quickly, being careful not to fall over. The water will slosh over to fill in the place where your body was, and then slosh back in the other direction, and so on. You have cr
模仿句子: They fell in love in prison, married, and had children. But living under war and repression eventually tore their marriage apart. 翻译: 他们在监狱里相爱,继而结婚生子。但是战争和镇压下的生活最终还是导