11、Thereisnodenyingthefactthatairpollutionisanextremelyseriousproblem：thecityauthoritiesshouldtakestrongmeasurestodealwithit. 无可否认，空气污染是一个

21、Peopleequatesuccessinlifewiththeabilityofoperatingcomputer. 人们把会使用计算机与人生成功相提并论。 22、Inthelastdecades，advancesinmedicaltechnolog

31、Thisviewisnowbeingquestionedbymoreandmorepeople. 这一观点正受到越来越多人的质疑。 32、Althoughmanypeopleclaimthat，alongwiththerapidlyeconomicdevel

41、Itmustbenotedthatlearningmustbedonebyapersonhimself. 必须指出学习只能靠自己。 42、Alargenumberofpeopletendtoliveundertheillusionthattheyhadcomplet

51、Millionsofpeoplehavetospendmoretimeandenergyonstudyingnewskillsandtechnologysothattheycankeepafavorablepositioninjobmarket. 成千上万的人们不得不花

61、Thisphenomenonhascausedwidepublicconcerninmanyplacesofworld. 这一现象在全世界许多地方已引起了广泛关注。 62、Manyparentsbelievethatadditionaleducat

71、Parentsarefirmlyconvincedthat，tosendtheirchildtokindergartensornurseryschoolswillhaveanunfavorableinfluenceonthegrowthofchildren. 父母们坚定地相信

81、Thoseurbanplannerswhoareblindtothispointwillpayaheavyprice，whichtheycannotaffordit. 那些城市的规划者们如果忽视这一点，将会付出他们无法承受的代价。

91、Inadditiontotheobviousproblem——loneliness，anothermajorobstacle，inmyopinion，isthealienenvironmentofcampus. 除了孤独这一明显的问题之外，我

101、Manypeopleseemtooverlookthebasicfact：themajorfunctionofclothingistokeepuswarmandcomfortable. 许多人似乎忽视了这个基本事实：衣服的基本功能是保持我们