7. take immediate action 即刻采取行动　 the immediate cause　 直接原因

6. imaginary　　 虚构的 imaginative　 想象的　　 an imaginative student 富有想象力的学生

imagination　　 n.想象力 　　　have a good/poor imagination 想象力好/坏　　　　　

imagine 想象　 imagine doing/that　　 Imagine yourself to be alone at home, what will you do ?

5. ignorant　 无知的　　 an ignorant man　 无知的人　　 be ignorant of不知道　

ignore　 不顾 (take no notice of)　　　 He ignored personal danger.

4. even if = even though 即使　 Even if it rains, I will go.　

3. as if = as though 似乎　 He looks as if he were tired　　 if only 但愿　 If only I were a bird.

2. identify　 认出，鉴定　　 identify one’s luggage

1. have no idea of 不知道　 = be in ignorance of = be ignorant of