2. If only (要是...该有多好啊)表示现在 的情况,应用过去式; 如果是过去的情况,应用过 去完成时态
*if only 通常独立使用,没有主句。
If only I knew the answer!
If only I had seen the film yesterday!
If only பைடு நூலகம்he would go with me!
如果你努力学习的话,你现在就会是大学生了.
had followed
If you ___________(follow)my advice ,
would be you ___________(be)better now.
如果你听我的建议,你现在就会痊愈了.
2.省略句 在条件句中,可省略 if,把were ,had, should 提到句首,变为倒
If I were to go abroad ,I would go to America.
More practice: 如果我是你,我就会努力学习. If I were you, I would work harder at my lessons.
如果我知道他的电话号码,我就给他打电话了. If I had known his telephone number, I would have called him.
b. If you _h_a_d__g_o_t (get) up earlier, you w__o_u_ld__h_a_v_e__ca_u__g_h_t (catch) the first train.
PRACTICE 3: Fill in the blanks
a. If there s_h_o_u_l_d__b_e (be) no natural resource any more, we s_h_o_u_l_d__m_a_k_e_ (make) use of nuclear power .