AmanlookingathissmartphonewhilewalkingacrossarailwaycrossinginNanjing（71）（have）acloseknockonOct22．Hewasso（72）（absorb）inhissmartphonethathedidn'tseeatrainapproachinguntilitbrushedpasthim

Question

A man looking at his smartphone while walking across a railway crossing in Nanjing （71）___ （have） a close knock on Oct 22．He was so （72）___（absorb） in his smartphone that he didn't see a train approaching until it brushed past him，（73）___ （throw） him to the ground．This should serve（74）___ a warning that people should be aware of their surroundings，especially （75）___ crossing roads．
（76）___（lucky），the man survived，but the incident forced the driver （77）___（stop） the train．An l8-minute delay followed the incident，（78）___ led to a break in the running of other trains on the route．
The Smartphone（79）___（addict） has spread like an infectious（传染的）disease．It's evident that it will do great harm to society．What's even （80）___ （bad），some addicts become impatient with relatives and friends．
Some people blame the smartphone for the sad story，yet in fact people's weakening self-control and self-discipline are to blame．

Answer 1

71．had       72．absorbed   73．throwing    74．as       75．when/while    76．Luckily 77．to stop    78．which      79．addiction  80．worse
详
71．答案had．考查时态．根据"was so （absorb） in his smartphone"，可知这是发生在过去的事情，应用过去时态，故填had．
72．答案absorbed．考查过去分词．be absorbed in…沉迷于…根据句子"He was so （absorb） in his smartphone that he didn't see a train approaching"他沉迷于他的智能手机以致于没有看见火车正在接近，故填absorbed．
73．答案throwing．考查非谓语．根据"was so （absorb） in his smartphone that he didn't see a train approaching until it brushed past him，（throw） him to the ground"可知后半句应是做伴随状语，主语为it，应是主动状态，加ing表主动，故填throwing．
74．答案as．考查介词．serve as 固定短语，表示"当做…；充当…"，根据句子"This should serve （as）a warning"这应该被当做一个警告，故填as．
75．答案when/while．考查连词．根据"should serve（as） a warning that people should be aware of their surroundings，especially ___ crossing roads"可知后半句应是时间状语，表示当…时，故填when/while．
76．答案Luckily．考查副词．（Lucky），the man survived a brush with death．副词放在句首，修饰整个句子，表示幸运的是，故填Luckily．
77．答案to stop．考查不定式．force sb．to do sth．固定短语，强迫…做…．"the incident forced the driver 67 （stop）the train"这次意外使司机停下了火车，故填to stop．
78．答案which．考查定语从句．根据"An 18-minute delay followed the incident，___ led to a break in the running of other trains on the route"后半句在这里作非限制性定语从句，要指代前面整个句子，故填which．
79．答案addiction．考查名词．"（addict ）has spread like an infectious disease"该句中已有谓语has spread，前面是主语，要变成名词形式，智能手机诱惑像传染病一样传播，故填addiction．
80．答案worse．考查比较级．"What's even （bad），some addicts become impatient with relatives and friends"更糟的是，一些成瘾者对家人朋友失去了耐心，What's worse是固定短语，表示更糟的是，故填worse．