unless
unlessconj.除非;若非;如果不。它是个从属连词,引导条件状语从句。由于unless具有否定意义,因此它引导的是个否定的条件。在中学阶段可以把它看作是if...not的同义表达。值得注意的是,unless从句如同if从句一样也常用一般现在时态表将来。如:
Unlessheworkshard,hewillnotpassthefinalexams.
=Ifhedoesntworkhard,hewillnotpassthefinalexams.
要是他不努力的话,期末考试将会不及格。
Illnotgotoherbirthdaypartyunlesssheinvitesmeinperson.
=Illnotgotoherbirthdaypartyifshedoesntinvitemeinperson.
我不会去参加她的生日晚会,除非她亲自邀请我。
我的朋友黛西
国际英语资讯:Qualcomm teams up with Chinas Lenovo to unveil first 5G PC
国内英语资讯:Top political advisor meets with media representatives across Taiwan Strait
国内英语资讯:Premier Li underlines tax cuts to benefit enterprises, boost market vitality
国内英语资讯:Chinas Sichuan to offer quake early warning services by year-end
游客太多不堪重负 荷兰不再推广旅游
体坛英语资讯:London marathon champ Kosgei returns home, relishes title defense in 2020
体坛英语资讯:ATP World Tour 250 Zhuhai Championships to be held in September
国际英语资讯:U.S. celebrates 150th anniversary of first transcontinental railroad, hails Chinese workers
体坛英语资讯:Six host cities for Womens Volleyball Olympic Qualifiers confirmed
国内英语资讯:Chinas 2nd Import Expo attracts over 250 Fortune 500 companies, industry leaders
国内英语资讯:Chinese vice premier arrives in Washington for 11th round of China-U.S. trade consultations
体坛英语资讯:Chile to play Haiti in Copa America warmup
国内英语资讯:Taiwan question brooks no foreign interference: spokesperson
国内英语资讯:Commentary: U.S. move on Taiwan question puts China-U.S. ties in jeopardy
国际英语资讯:Pompeo, Brazilian FM talk over phone on ties, Venezuela
体坛英语资讯:Bayern roll 5-1 over Frankfurt to clinch their 7th successive Bundesliga title
Love From My Mother 妈妈的爱
大学老师怎么看待慢学生?
体坛英语资讯:Poland to invest in football innovation
国际英语资讯:Putin says Russia to continue boosting defense potential
体坛英语资讯:Messi, Suarez give Barca foot and a half in Champions League final
国际英语资讯:UN holds first habitat assembly to address global urbanization challenges
一株垂垂老矣的常青藤
国际英语资讯:Indias Modi to hold bilateral meetings with visiting leaders after swearing-in
体坛英语资讯:Valverde: Barca not obliged to win Champions League, but it is a dream
体坛英语资讯:China win 2 golds on day 1 of FINA diving World Series in London
体坛英语资讯:Ajax beat Tottenham 1-0 in first leg of Champions League semifinal
The Worship of Idols 偶像崇拜
国际英语资讯:UN says Yemeni Houthi rebels to withdraw from Hodeidahs key ports in 4 days