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”。 After they had planted their crops, they took a rest. We have learned six lessons since he began to teach us. As soon as he gets to Beijing, he’ll call me. 1) when, while, as 都表示“當(dāng)……時”,when從句謂語動詞既可以是瞬間動詞也可以是延續(xù)性動詞,可用于主從句動作同時發(fā)生或從句動作先于主句動作發(fā)生。 She isn’t either a student or a teacher. 3)whether…or…不管…還是… She is always cheerful, whether at home or at school. ?。篺or(因為),so(所以)。要么…要么… A. either…or…連接兩個并列主語時,謂語動詞靠近哪個主語就與哪個主語保持 “人稱”和 “數(shù)”的一致,即就近原則。 Is your friend English or American? American. He doesn’t like dumplings or noodles. B:特別用法 祁使句后連接or ,表 “如果…,否則…”,有轉(zhuǎn)折的意思,此時 or =if you don’t …,you’ll … Hurry up, or you’ll be late.=If you don’t hurry up, you’ll be late. 2)either…or…:或者…或者…。 Mary was a nice girl, but she had one shorting. Tom got up early, yet he failed to catch the train. He was very tired, still he ke