外来名词 medium→media

phenomenon→phenomena

analysis→analyses 　　 [名师指津]　①fish表示不同种类的鱼时，其复数形式为fishes，而表示同一种鱼时，其单复数形式相同；②people指"人们"时单复数同形，指"民族"时，其复数为peoples。

　　3．合成名词的2种复数形式

　　(1)若有主体名词，则把主体名词变成复数；若无主体名词，则把最后一部分变成复数。

　　passer­by→passers­by, sister­in­law→sisters­in­law, grown­up→grown­ups, housewife→housewives

　　(2)"man/woman＋n."变复数时，作定语的man/woman和主体名词都要变复数：women engineers。

　　[命题点感悟]

　　单句语法填空

　　①(2018·全国卷Ⅰ)Two of the authors of the review also made a study published in 2014 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：causes　此处的cause是可数名词，表示"原因"。根据其前的all可知，应该使用复数形式，故填causes。

　　②(2018·浙江11月高考)One study showed that ________ (woman) who drank a lot of coffee, like eight or more cups per day, while they were pregnant were more likely to have children with birth defects.

　　解析：women　根据该句后半部分的they可知，空格处应该用复数形式，故填women。

　　③(2018·浙江6月高考)Making Chinese ________ (dish) is seen as especially troublesome.

　　解析：dishes　此处表示"中国的饭菜"，当然不止一种，因此该名词应该用复数形式，故填dishes。

　　④(2017·浙江11月高考)You wouldn't think that a few ________ (month) of exercise in your teens would be enough ...

　　解析：months　空格前面有a few作限定词且表示肯定，因此后面的名词应该用复数形式，所以使用months。

⑤(2017·浙江6月高考)Last October, while tending her garden in Mora, Sweden, Lena