1．(2020·浙江卷1月)For Japan，the ________(number)are more striking—22 in 1950，46 today and 53 in 2050.
解析： 考查名词的单复数。根据下文的are可知这里需要填写number的复数形式。
答案： numbers
2．(2020·全国卷Ⅲ)Filled with ________(curious)，the artist packed his bags and left.
解析： 考查词性转换。介词with后应使用名词。
答案： curiosity
3．(2019·北京卷)No matter what you like to do，there is a way to get involved in various________(activity)on Earth Day.
解析： 考查名词单复数。根据修饰语various可知用名词复数，指各种各样的活动。
答案： activities
4．(2018·全国卷Ⅰ)Two of the authors of the review also made a study published in 2014 which/that showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all________(cause).
解析： 考查名词复数。cause表示“原因，起因”时是可数名词，前面有all，故填cause的复数形式。
答案： causes
5．(2018·浙江卷)Few people I know seem to have much desire or time to cook.Making Chinese________(dish)is seen as especially troublesome.
解析： 考查名词单复数。dish是可数名词，其前无限定词，故用其复数形式dishes。
答案： dishes
