题目内容

18．All the time must be made full use of __________．（　　）
A．studying hardB．to study hard
C．be studying hardD．to be studied hard

分析 所有的时间都必须充分利用来努力学习．

解答 答案：B 考查动词不定式．此处用动词不定式表示目的．A项：动名词，容易错当成make full use of的宾语；C项：没有这种表达形式；D项：不定式的一般被动式，此处要用主动式．

点评 动词不定式具有名词、形容词和副词的特征，因此，在句中可以作主语、表语、宾语、宾语补足语、定语和状语．第一步，分析句子的语态，根据主语与动词的关系判断该句是主动句还是被动句；第二步，判断动词的时态和单复数．如果是主动句（主语是动作的施行者），就判断动词的时态，直接写出动词的时态即可．

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8．When he donated his brain to science，he didn't realize what a valuable gift he shared with the world．His brain has recently been digitally imaged in 3D to ensure future generations have online access to his undiscovered treasures．
No，it's not Einstein's brain．His name was Henry Molaison．You may not have heard of his name but his contribution has influenced our life．Scientists are learning new ways for treating diseases such as Alzheimer's，mainly due to the research conducted on Henry．
Henry had part of his brain removed in 1953．However，his ability to form memories was unexpectedly changed．Henry could remember some events and people from his life before the operation，though he could not form new memories．If you met Henry，he would forget meeting you seconds later．Henry only lived in the moment，and nowhere else．The operation had removed key parts of the brain responsible for helping remember the details of our lives．Henry had no choice； his life existed only in the Now．Henry would have forgotten the entire meeting moments after it was over．
Unable to live a normal life，Henry engaged in simple daily activities such as shopping，watching television，and doing puzzles．He spent most of his time serving as the subject of countless research projects．
Henry could still learn new skills and tasks．He could retain theses skills，but had no idea where or when he had learned them．His brain has multiple memory systems．Memory is not a single process which occurs in the entire brain．Instead，various parts of the brain are responsible for our memory．Due to his inability to remember he'd done so many times before，Henry was a willing participant and never grew tired of serving the science community．
Giving scientists the map for learning how and where the brain forms memories is Henry's greatest contribution．This is the priceless gift that won't easily be forgotten．
72．After part of his brain was removed，HenryA．
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B．had no choice but to live a life in the past
C．realized that he could give a valuable gift to the world
D．decided to contribute more to the study of the human's brain
73．Which of the following things occupied most of Henry's daily time？B
A．Shopping with his family．
B．Taking part in research projects．
C．Doing puzzles alone．
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74．According to the passage，Henry's key contribution to science isC．
A．helping humans live a longer life than ever before
B．never growing tired of serving the science community
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D．teaching us how to remember the details of our lives
75．It can be inferred thatD．
A．the author is one of Henry's doctors
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C．the part of Henry's brain was removed for study
D．the author sings high praise for Henry．
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