第 1 题 · 高考
We enjoy the occasional visit to the mountains, and it refreshes our mind.
核心词：occasional əˈkeɪʒ(ə)n(ə)l adj. 偶尔的
我们喜欢偶尔去山里，这让我们精神焕发。
一般现在时the occasional visit短语 an occasional visitor
We enjoy the ___ visit to the mountains, and it refreshes our mind.
第 2 题 · 高考
The observer watched the birds closely, and he wrote down every detail.
核心词：observer əbˈzɜːvə n. 观察者
观察者仔细观察鸟类，记下每个细节。
一般过去时an observer of短语 a keen observer
The ___ watched the birds closely, and he wrote down every detail.
第 3 题 · 高考
The continuous rain lasted for three days, and the streets were flooded.
核心词：continuous kənˈtɪnjʊəs adj. 连续的；持续的
连续下了三天雨，街道被淹了。
一般过去时continuous rain短语 continuous effort
The ___ rain lasted for three days, and the streets were flooded.
