once upon a time从前no wonder难怪,怪不得decline with thanks婉言谢绝account for说明(原因等)allow for考虑到arrive at达成,得出ask for请求,要求begin with从开始break off断绝,结束break up中止,...2015-09-29
Britain’s Solo SailorEllen MacArthur started sailing when she was eight,going out on sailing trips with her aunt.She loved it so much that she saved h...2015-09-29
and so on等等all at once突然;同时,一起once(and)for all一劳永逸,限此一次by oneself独自地,单独地other than不同于all right好,行ever since从那时起,自那时以来ever so非常,极其so…as to结果是;如此……以至于at...2015-09-29
名词:(一)英语名词可分专有名词和普通名词两大类:1.专有名词是个别的人、地、物、团体、机构等的专用名称。专有名词中实词的第一个字母要大写。如:Beijing, Tom, the People’s Republic of China(中华人民共和国)专有名词如果是含有普通名词的短语,则必须使用定冠词...2015-09-29
Can Buildings Be Designed to Resist Terrorist Attack?In the aftermath of the terrorist attack on the World Trade Center, structural engineers are try...2015-09-29
From Ponzi to MadofThe year was 1920. The country was the United States of America. The man's name was Charles Ponzi. Ponzi told people to stop depos...2015-09-29
Motoring Technology1.2 million road deaths worldwide occur each year,plus a further 50 million injuries.To reduce car crash rate,much research now is ...2015-09-29
Studies Show US Spending Doesn’t Get Best HealthThe United States many spend twice as much on health care as other rich countries1, but it is not gett...2015-09-29
Better Control of TB Seen If a Faster Cure Is FoundThe World Health Organization1 estimates that about one-third of all people are infected with bacte...2015-09-29
come/go into effect生效,实施catch one eye引人注目make a face做鬼脸catch fire着火make friends交朋友,友好相处make fun of取笑,嘲弄lose heart丧失勇气,失去信心get hold of抓住,掌握throw/cast l...2015-09-29
用法辨析:(1)“Why not+动词原形+…?”(干嘛不……?)是简略句,完全形式是:Why don't you +动词原形+…?如:Why not go and have a look?(干嘛不去看看?)/Why not try it once again?(为什么不再试试?)(2) seem...2015-09-29
动词不定式可以在句子中用作状语,有下列几种情况:[A] 放在不及物动词(come,go,stop,finish,wait等词)的后面。如:He came to see her yesterday.(他昨天来看望她)(表示来的目的)/ I stopped to have a rest.(我停下来休息一...2015-09-29
add up to合计,总计break away(from)脱离,逃跑come true实现,达到come up with提出,提供do away with废除,去掉have nothing to do with和…毫无关系make believe假装catch up with追上,赶上come u...2015-09-29
答案在下一页One Good Reason to Let Smallpox LiveIt's now a fair bet that we will never see the total extinction of the smallpox virus.The idea was to cap t...2015-09-29
Operation MigrationIf you look up at the sky in the early fall in the northern part of North America, you may see groups of birds. These birds are fly...2015-09-29
Most Adults in US Have Low Risk of Heart DiseaseMore than 80 percent of US adults have a less than 10–percent risk of developing heart disease in the ...2015-09-29
Are You Just Not Ill or Excellent in Health?As we have seen, the focus of medical care in our society has been shifting from curing disease to prevent...2015-09-29