代詞(一)代詞的分類:英語中代詞分為:人稱代詞、物主代詞、反身代詞、指示代詞、關系代詞、疑問代詞、連接代詞和不定代詞等等。(二)人稱代詞:人稱代詞代替人和事物的名稱,分為主格和賓格兩種形式。1.主格用來作句子的主語、表語。如: I often go shopping on Sundays.(星期天我...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
The Effects of Global Warming on WeatherThere are hidden factors which scientists call "feedback mechanisms”。 No one knows quite how they will interac...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
and so on等等all at once突然;同時,一起once(and)for all一勞永逸,限此一次by oneself獨自地,單獨地other than不同于all right好,行ever since從那時起,自那時以來ever so非常,極其so…as to結果是;如此……以至于at...2015-09-29
動詞不定式可以在句子中用作狀語,有下列幾種情況:[A] 放在不及物動詞(come,go,stop,finish,wait等詞)的后面。如:He came to see her yesterday.(他昨天來看望她)(表示來的目的)/ I stopped to have a rest.(我停下來休息一...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
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
Lead PollutionLead deposits, which accumulated in soil and snow during the 1960’s and 70’s, were primarily the result of leaded gasoline emissions ori...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
Eiffel Is an EyefulSome 300 meters up,near the Eiffel Tower's wind-whipped summit the world comes to scribble.Japanese,Brazilians.Americans-they graf...2015-09-29
名詞:(一)英語名詞可分專有名詞和普通名詞兩大類:1.專有名詞是個別的人、地、物、團體、機構等的專用名稱。專有名詞中實詞的第一個字母要大寫。如:Beijing, Tom, the People’s Republic of China(中華人民共和國)專有名詞如果是含有普通名詞的短語,則必須使用定冠詞...2015-09-29
Gross National HappinessIn the last century, new technology improved the lives of many people in many countries. However, one country resisted these c...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
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