Question

10．這位嚴(yán)格的老師經(jīng)常警告她的學(xué)生要么按時(shí)上交作業(yè)，要么不能通過這門課．
The strict teacher often warns her students thateither they hand in their homework on time or they will fail her class．．

Answer 1

分析 either they hand in their homework on time or they will fail her class．

解答 答案：either they hand in their homework on time or they will fail her class． 這里是作為warn的賓語從句，主句是一般現(xiàn)在時(shí)，從句時(shí)態(tài)不受限制，這里表示要么…要么…用either…or…連接兩個(gè)對(duì)等成分，這里我們是要連接兩個(gè)句子，她的學(xué)生要么按時(shí)上交作業(yè)，用一般現(xiàn)在時(shí)，主語是they代替前面的her students，交作業(yè)hand in their homework 按時(shí)on time，故either they hand in their homework on time，要么不能通過這門課，是說將來的事情用一般將來時(shí)will+動(dòng)詞原形，不能通過用fail后直接加上名詞her class，故答案是either they hand in their homework on time or they will fail her class．

點(diǎn)評(píng) either…or…主要用于表示選擇，其意為"要么…要么…""或者…或者…"，用于連接兩個(gè)性質(zhì)相同的詞或短語．如：
You can have either this one or that one．你拿這個(gè)或那個(gè)都可以．
 either…or…連接兩個(gè)成分作主語時(shí)，謂語動(dòng)詞通常與其靠近的主語保持一致．如：
Either you or I am to go．你或我必須有人去．
Either he or you are right．要么他對(duì)，要么你對(duì)．
 either…or…除可連接兩個(gè)詞或短語外，有時(shí)也可連接兩個(gè)句子．如：
Either you must improve your work or I shall dismiss you．要么你改進(jìn)工作，要么我就辭退你．
Either you'll leave this house or I'll call the police．你要是不離開這座房子，我就叫警察來