Ⅰ. 单句语法填空
1. It was only when I reread his poems recently that I began to appreciate(appreciate) their beauty.
2. The ice there has become a window on the past with gases and minerals trapped(trap) in it.
3. There is a need for the conservation(conserve) of trees, or there will soon be no forests.
4. The second half of the game was dull by comparison (compare) with the first.
5. The city was in chaos after the severe earthquake.
6. The population has reduced dramatically(dramatic) because of the war.
7. Those nurses subsequently (subsequent) received awards for their selfless contributions.
8. Khartoum has exploded(explode) with anger at accusations of blasphemy in the past.
9. But he turned(turn) out to be immature and irresponsible.
10. She took over his work after his departure(depart).