if，that，though/although，unless，when等
引导从属从句或名词从句的从属连词在有关从句的各章中均有所描述。条件从句参见第二十一章;目的从句参见第三十三章;理由、结果、让步、比较从句和时间从句参见第三十四章;名词从句参见第三十五章。某些连词有多种意思，可引导不同类型的从句。
有些连词容易与另一个连词或与几个其他词类混淆。下面就谈一谈这些连词。
长假出游贴士：世界各国是如何给小费的
国内英语资讯:China Focus: Chinas development through the eyes of long-term expats
盘点：为拍戏差点丧命的女演员
国内英语资讯:China toughens rules to improve environmental monitoring data
美文赏析:如果你害怕，那说明你不傻
国内英语资讯:Exposed combustible ice found in South China Sea
国内英语资讯:Three killed, 27 injured as bus mounts pavement in Hong Kong
体坛英语资讯：Ronaldo, Messi, Neymar named as Best FIFA player finalists
苹果刷脸功能引争议，群众害怕泄隐私
国内英语资讯:China urges restraint after DPRK declares H-bomb test possibility
国际英语资讯:Turkish parliament extends mandate for troop deployment in Iraq, Syria
国际英语资讯:U.S., Russian militaries hold face-to-face talks on Syria: Pentagon
联合国小组将搜集伊斯兰国在伊拉克战争罪的证据
国际英语资讯:Dominica PM confirms at least 15 killed in hurricane Maria attack
国际英语资讯:U.S. trade agency claims injury from solar imports despite industrys opposition
体坛英语资讯：Wolfsburg hold Bayern 2-2 in German Bundesliga
体坛英语资讯：Real Madrid look for away day comforts against Alaves
体坛英语资讯：Barca make it 6 from 6 while Ceballos scored 2 for Real Madrid
国际英语资讯:S Korea president calls for caution dealing with Korean Peninsula issue
老外在中国：忠犬相伴
今后逛超市可能连手机都不用带了，带着手去就行了
国际英语资讯:Austrias Kurz kicks off election campaign
埃尔多安抗议者遭殴打,川普称埃尔多安是朋友
国际英语资讯:3 IDPs killed, 26 injured in protests against Sudanese presidents visit to IDP camp in Dar
国际英语资讯:Death toll climbs to 273 in central Mexico quake
国内英语资讯:Guangdongs maritime silk road expo attracts global businesses
国内英语资讯:Chinese FM meets Syrian deputy prime minister
国际英语资讯:Iranian leaders slam Trumps anti-Iran remarks
去欧洲旅游最值得买的纪念品（组图）[1]
美文赏析:木匠的故事