Question

【题目】用方框中所给单词的适当形式填空。每词限用一次。

main invite natural twelve difficult

（1）I think wonders are better than man-made ones because they are more amazing.
（2）My birthday is coming, so my parents are preparing a party for me.
（3）Today people search for information on the Internet instead of paper books.
（4）As her parents were both to a meeting in the school, Linda was home alone.
（5） are not excuses that stop you making progress.

Answer 1

【答案】
（1）natural
（2）twelfth
（3）mainly
（4）invited
（5）Difficulties
【解析】main主要的； invite 邀请； natural 自然的； twelve 十二； difficult困难的。
⑴句意：我认为自然奇观比人造奇迹更好因为它们更加神奇。形容词修饰名词，故填natural。
⑵句意：我的12岁生日快到了，所以我父母正在为我准备一个聚会。表达生日用序数词，故填twelfth。
⑶句意：今天人们主要在网上而不是纸质的书上寻找信息。修饰动词，故填副词mainly。
⑷句意：因为他父母都被邀请去学校参加会议，Linda一个人在家。根据were可知填过去分词invited构成被动语态。所以填invited。
⑸句意：困难不是阻止你取得进步的借口。根据系动词are可知用复数，故填Difficulties。