1.(2017·全国卷Ⅱ，69)This development was only possible with the ________ (introduce) of electricpowered engines and lifts.
答案：introduction 由空格前的定冠词the可知其后应接名词作介词with的宾语。
2.(2017·全国卷Ⅲ，66)She is determined to carry on with her ________ (educate).
答案：education 形容词性物主代词通常在名词前作定语。由此可知her后面的空格处应为名词education。
3.(2017·浙江高考，56) Lena Pahlsson pulled out a handful of small ________ (carrot) and was about to throw them away.
答案：carrots 由空格前面的修饰语a handful of “一把……;少量的”可知后面的名词carrot应用复数形式carrots。
4.(2016·全国卷Ⅱ，46)Recent ________(study) show that we are far more productive at work if we take short breaks regularly.
答案：studies 根据句子谓语动词show可知，主语应该是名词的复数形式。
5.(2016·全国卷Ⅰ，61)Chengdu has dozens of new millionaires, Asia's biggest building, and fancy new hotels. But for tourists like me, pandas are its top ________ (attract).
答案：attraction 根据空格前的形容词top可知应用名词，形容词常用作定语来修饰名词。
6.(2016·全国卷Ⅱ，42)Handle the most important tasks first so you'll feel a real sense of ________ (achieve).
答案：achievement 介词of后要用名词作宾语。a sense of
achievement “成就感”。
7.(2016·全国卷Ⅰ，69)The nursery team switches him every few ________ (day) with his sister.
答案：days few修饰可数名词复数，故答案为days。every few days “每隔几天”。
8.(2016·江苏高考，阅读C)The weather ________(effect), both good and bad, are felt in many places.
答案：effects 句子的谓语为are felt，由此可知句子的主语也应该是复数形式effects。
9.(2016·北京高考，阅读D)The college years are supposed to be a time for important ________(grow) in autonomy (自主性) and the development of adult identity.
答案：growth 形容词important用来修饰名词;根据句子结构 ... and the development ... 可知此处应填名词growth和后面的development构成并列。
10.(2015·浙江高考，15)One of the most effective ways to reduce ________ (stressful) is to talk about feelings with someone you trust.
答案：stress 动词reduce后需用名词作宾语，stress “压力，紧张”，是不可数名词。句意：减压的最有效方法之一是和你信任的人谈论感受。
11.Although these _______ (measure) are not effective forever, they are vital for now.
答案：measures 根据前面的指示代词these和谓语动词are可以判断，主语应用复数形式measures。
12.Visiting an apple event is a good chance to see, and often taste a wide variety of ________ (apple).
答案：apples a (wide) variety of “各种各样的”，修饰复数名词。句意：在苹果节人们可以看到，并常常能尝到各种各样的苹果。
13.The __________ (life) of these people have finally been recorded thanks to the effects of a Frenchman from Paris called Gin.
答案：lives 句子的谓语动词have finally been recorded是复数形式，由此可以判断出此处需要用名词复数形式作句子的主语。
14.It's still a useful and pleasant form of ________(communicate).
答案：communication 介词of之后要用名词， a form of
communication “一种沟通方式”。
15. I had no ________ (choose) but to prepare for it, though.
答案：choice 形容词no后面应跟名词。have no choice but to do sth. “除了……别无选择”，固定搭配。
16.Some schools will have to make ________(adjust) in agreement with the national soccer reform.
答案：adjustments 句意：为了与国家的足球改革相适应，一些学校将做出调整。make adjustments是固定表达，意为“做出调整”。
17.There is no need to tell me your answer now. Give it some ________ (think) and then let me know.
答案：thought 句意：现在没必要告诉我你的答案。认真考虑，然后告诉我。some后应跟名词，thought “思索，考虑”。
18.Only a few dollars can help to fill a ________ (child) hungry
stomach.
答案：child's 此处表示“仅仅几美元就能帮助一个孩子不挨饿”，空后是名词stomach，提示词是child，空前是不定冠词a，故用child的所有格形式。
19.When he was running after his brother, the boy lost his
________ (balanced) and had a bad fall.
答案：balance 句意：小男孩在追赶哥哥时失去了平衡，重重地摔了一跤。根据空格前的动词lost和物主代词his可知需用名词作宾语。lose one's balance “失去平衡”。
20.—Why not buy a secondhand car first if you don't have enough money for a new one?
—That's a good ________ (suggest).
答案：suggestion 句意：——如果你的钱不够买一辆新车，为什么不先买一辆二手车呢?——这是个好建议。由常识可知形容词修饰名词，故good后应用suggest的名词形式suggestion。
