小测验：选择正确的单词

1. Some roofs are made with overlapping slates.
   有些屋顶是用交叠的石板瓦盖的。
2. He angrily banged his slate upon the table.
   他愤怒地把他的石板在桌上使劲敲打。
3. Only a skilled workman can split slate into layers.
   惟有巧匠才能把板岩劈成石片。
4. A skilled person can split slate into layers.
   手巧的人能把板岩剖成片.
5. White slated for Presidency [.
   新闻标题]怀特被提名为总统候选人。

　3个名词解释