基础分层自测
维度一 词形转换练
1．[2023·全国乙卷]What's more, indoor plants are easy to look after and are not very ________ (expense)．
2．[2023·全国乙卷]I have missed plenty of beautiful ________ (sunrise) due to being on the spot only five minutes before the best moment.
3．[2022·北京卷]What's new is that millions of dollars are now ________ (potential) available to quantum (量子) computing researchers.
4．[2022·全国乙卷]It comes after more than half of soft drinks sold in shops have had their sugar levels cut by ________ (manufacture) so they can avoid paying the tax.
5．Activities all take place under the ________ (guide) of an experienced tutor.
6．To the surprise of the little boy, the door opened ________ (automatic) as he approached.
