第39题：Dad is angry. He seems __________(know) about Tom stealing money from Mum.
Tyger讲解：我们需要区分的是seem to do和seem to have done的区别。
1.用到seem to do的情形
Dad seems to know about it.
2.用到seem to have done的情形
Dad is angry, he seems to have know about it.
从这道题，我们再次感受到完成表强调。从考题的角度，强调一定要给信息。瑶瑶，加油。
第46题: ___________(finish) his homework, the boy didn't want to go to bed.
完成式：have finished
完成式的分词形式：having finished
完成时的分词否定形式：Not having finished
Tyger点评：完成表强调
第48题：Sorry，with so much work _______(fill) my mind, I can't spare time to tell you how I broke through at this stage of the game.
Tyger解析：这道题到底filled还是filling，这个上下文有关。
filling：with so much work filling my mind
filled: with my mind filled with so much work
Tyger点评：分词的使用关键在于理解，死记硬背最最低效。
第49题：Nowadays，people are encouraged to separate their waste to make it easier for it ______(reuse).
Tyger点评：英语难难在结构，破解之道在于熟练掌握各种结构。答案是两重结构：to do+be reused=to be reused
更多的is doing+be done=is being done，have done+be done=have been done，这三种结构高考题常考。
第50题：There is a great deal of evidence ________(indicate) that much activities engage different parts of the brain.
Tyger点评：to indicate为啥不行？其实并不是to indicate不行，分词的使用只有结合语境才能融会贯通。
一个导师对Ta的学生说：
You need to find out the evidence to indicate that much activities engage different parts of the brain.
学生通过研究发现：
There is a great deal of evidence indicating (indicate) that much activities engage different parts of the brain.
