那么我们开始今天的课程吧
1.本节课我们讲解第79课,【By air 乘飞机】这个词组。
2.我们先进行欣赏外教课文演绎。
3.首先我们要注意的是倒装句,【I am used to travelling by air and only on one occasion have I ever felt frightened.】①【倒装句,倒装句的结构为“副词+助动词(be,dohave,can,must等)+主语+句子的其余部分。用倒装句的情况:句首为否定或近似否定的副词(never, rarely, little, on no occasion, hardly, no sooner...than):【 Never has he got so many letters.】【On no occasion must you accept any money if he offers it.】
4.②句首为only构成的词组(如only after, only then等) 【Only then did I realize what a mistake have made.】如果only加上状语放在句首,那么就要用倒装语序。即把肯定句语序变成一般疑问句语序。【It is only in recent years that it gained bad reputation.强调