[動(dòng)詞的時(shí)態(tài)]時(shí)態(tài)一致

字號(hào):

1) 如果從句所敘述的為真理或相對不變的事實(shí),則用現(xiàn)在時(shí)。例如:
    At that time, people did not know that the earth moves. 那時(shí),人們不知道地球是動(dòng)的。
    He told me last week that he is eighteen. 上星期他告訴我他十八歲了。
    2) 賓語從句中的,助動(dòng)詞ought, need, must, dare 的時(shí)態(tài)是不變的。例如:
    He thought that I need not tell you the truth. 他認(rèn)為我不必告訴你真相。