Nowhereinnatureisaluminumfoundfree,owingtoitsalways____withotherelements,mostcommonlywithoxygen.
A
【句意】 由于铝总是和其它元素结合在一起，最常见的是和氧气在一起，所以自然界中哪里也不会找到单独的铝元素。
【难点】 owing to 是介词，后应接名词或动名词，根据题意，应接被动语态形式。
Peopleinsomeareasdon’thavetopayfortheir______.
Writing:
Astatementgoesthat"boththedevelopmentoftechnologicaltoolsandtheusestowhichhumanityhasputthemhavecreatedmoderncivilizationsinwhichlonelinessiseverincreasing."Towhatdegreedoyouagreewiththisstatement?Writeanessayofabout400words.
Inthefirstpartofyouressayyoushouldstateclearlyyourmainargument,andinthesecondpartyoushouldsupportyourargumentwithappropriatedetails.Inthelastpartyoushouldbringwhatyouhavewrittentoanaturalconclusionormakeasummary.
Youshouldsupplyanappropriatetitleforyouressay.
Markswillbeawardedforcontent,organization,grammarandappropriateness.Failuretofollowtheaboveinstructionsmayresultinalossofmarks.
—Doyoumind__________here?
—________.
All of us know, color-blind people often find it difficult to __ between blue and green.