1.(2018河南郑州一中六次测试)Most caves are formed nature under the ground, but some have entrances people can find.
答案 by 句意:大部分洞窟是在地下自然形成的,但有些洞窟的入口人们可以发现。by nature为固定搭配,意为 “天然地”,故填介词by。
2.(2018陕西榆林二中三模)With the Internet, parents cannot check a published guide to determine what is suitable their children to see.
答案 for be+adj.+for sb.+to do sth.为固定结构,故设空处填介词for。
3.(2018广东五校协作体一次联考)The brand was born in Wuzhen in 1848 and has been popular the distinctive taste of its duck products.
答案 for 句意:该品牌于1848年诞生于乌镇,由于其鸭产品独特的味道而一直受欢迎。设空处表示“原因”,故用介词for。
4.(2018福建龙岩2月质检)As Christmas is the most important festival in the West, some believe that it is similar the Spring Festival in China.
答案 to 句意:由于圣诞节是西方最重要的节日,因此一些人认为圣诞节与中国的春节相似。be similar to为固定短语,意为“与……相似”。
