阅读下列各小题，根据汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。
71. Knowing ______ reduces the risks of failure and it works like an insurance policy for your own ability. (do) 知道你正在干什么，能降低失败的风险，这就像给自己的能力买了份保险。
72. Not ______ my parents, I failed to go to a drama school, where my interest lay.
(persuade) 由于没有说服我父母，我没能上戏剧学校，而那才是我的兴趣所在。
73. The chief engineer together with his colleagues _____ new scientific methods of farming since five years ago. (look) 五年以来，总工程师和他的同事们一起一直在寻找新的科学农耕方法。
74. When I work on the farmland in the daytime, I always _____ to a tree on the riverbank. (keep)
白天干农活的时候，我总是把羊拴在河边的树上。
75. As time is pressing, I think ___ is the best way to get from here to the conference centre. (take)
由于时间紧迫，我认为从这里去会议中心最好的办法是乘出租车。
76. So fast ______ that we can hardly imagine its speed. (travel)
光传播的速度快到我们难以想象。
77. Through the course of my schooling, I met many teachers, two ______ me greatly. (influence)
上学时我遇到过很多老师，其中两位对我影响很大。
78. I don’t often lose things, so I was quite surprised ______ my wallet and found it wasn’t there. (reach) 我不常丢东西，所以当我拿钱包却发现钱包不在时，大吃一惊。
79. It is reported in the newspaper that several new subway lines ______ in Wuhan. (build)
据报纸报道，武汉正在建设几条新的地铁线路。
80. Most believe he _______ for England last week, but for a serious injury which put him out of football. (play) 多数人认为，要不是受了重伤而告别足球，上周他本会为英格兰踢球的。
【答案】what you are doing/ the thing(s) which/that you are doing
【解析】考查宾语从句和现在进行时态。先根据句子语境来确定时态，注意“正在干什么”，同时名词性从句要用陈述语序，故为what you are doing。也可以用定语从句，the thing(s)是先行词，时态依然是现在进行时，which/that在定语从句中作宾语，故为the thing(s) which/that you are doing。
【答案】having persuaded
【解析】考查非谓语。本题考查分词做原因状语，因persuade的动作先于主句动作发生，故用分词的完成式做状语，即having persuaded。
【答案】has been looking for
【解析】考查主谓一致和动词时态。当主语后面跟有as well as，as much as，no less than，along with，with，like，rather than，together with，but，except，besides，including，in addition to等引导的词组时，其谓语动词的单
、复数据这些词前面的主语而定。look for“寻找”，句子时态要用完成时，故为has been looking for。
【答案】keep the/my sheep tied
【解析】考查keep的复合结构。宾补与宾语构成动宾关系，根据从句时态和语境看，用一般现在时表示经常性、习惯性的动作。
keep + O + adj. / doing/ done ：
Close the door to keep the room warm.
The noise from their party kept me awake half the night.
I am sorry to keep you waiting.
keep sb. informed of/ reminded of/ amused with
【答案】taking a taxi/ to take a taxi
【解析】考查非谓语，即动名词或不定式做主语。take a taxi 乘出租车。
【答案】does light travel
【解析】考查部分倒装。在so...that或such…that引导的结果状语从句中，
如果so＋adj./adv，such+n位于句首，其主句要部分倒装语序，句子为一般现在时态。
So loudly did he speak that everyone could hear him.
他讲话声音足够大，以至于每个人都能听得见。
【答案】of whom influenced/ of whom have influenced/ of them having influenced
【解析】考查介词+关系代词引导的定语从句。先看主语时态，确定答案可以用一般过去时或现在完成时，influence v.影响，故为of whom influenced/ of whom have influenced。其中of them having influenced是独立主格式。
【答案】when I reached for/ the moment I reached for
【解析】考查时间状语从句。reach v. ~ for sth伸出（手）以触到﹑ 抓到或拿到某物，连词可以用when或the moment，表示“当…时候，一…就”，故为when I reached for/ the moment I reached for。
【答案】are being built
【解析】考查动词的时态、语态。由“正在建设”可以知要用现在进行时的被动形式，即are being built。
【答案】would/could have played
【解析】考查虚拟语气。分析句子可知，本句是but for引起的含蓄条件句，这样的虚拟句不含有if从句，而是以but for/without/or/otherwise等引导的句子代替if从句，主句的谓语动词的形式与前面虚拟语气的基本用法相同。根据语境表达可知，句子是与过去事实相反的虚拟假设，故为would/could have played。
