Scientists Decipher Fact From Fantasy in Movie 'Passengers' LOS ANGELES In the new Sci-Fi film Passengers, by Sony Pictures Entertainment, people on Earth are on a 120-year trip to colonize a new planet. But something goes wrong on their way there. S

发表于:2018-11-29 / 阅读(144) / 评论(0) 分类 VOA标准英语2016年(十二月)

Section (A)Iron and the Effects of Exercise Sports medicine experts have observed for years that endurance athletes, particularly females,frequently have iron deficiencies. Now a new study by a team of Purdue University researcherssuggests that even

发表于:2018-12-04 / 阅读(26) / 评论(0) 分类 新视野大学英语读写教程(3)

Sickle cell disease is a blood disorder due to a single genetic mutation. It remains in populations because the mutation has a flip sideit helps to protect against malaria. Now another mutation has been shown to afford similar protection. Deficiency

发表于:2018-12-24 / 阅读(45) / 评论(0) 分类 Scientific American(十二)月

By Kari Barber Dakar 06 July 2007 After years of turmoil and economic hardship, the small West African nation of Guinea Bissau is facing a health challenge caused by the absence of iodine in the nation's diet. In countries where iodine is not already

发表于:2019-01-16 / 阅读(88) / 评论(0) 分类 2007年VOA标准英语(七月)

Gene for Disease Has Healthy Flip Side A study in the journal Science finds that the gene for anemia-causing G6PD deficiency also protects against malaria, thereby keeping the gene active in populations. Cynthia Graber reports Sickle cell disease is

发表于:2019-01-30 / 阅读(142) / 评论(0) 分类 60秒科学

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Imagine a baby boy. Lets call him

发表于:2019-02-14 / 阅读(49) / 评论(0) 分类 环球英语 Spotlight