[课 下 作 业]
Ⅰ.单项填空
1．You can’t see well through a telescope unless it is ________ correctly to your sight.
A．accustomed B．adjusted
C．admitted D．adopted
答案 B [adjust “调节”。句意：除非你把望远镜调节到和你视力一致，否则，你就会看不清楚。accustom“使习惯于”；admit“承认”；adopt“采纳”。]
2．There is a growing tendency for people to do shopping on the Internet.But sometimes it’s difficult to ________ the quality of the products.
A．assume B．suppose C．measure D．ensure
答案 D [句意：人们越来越倾向于在网上购物，但有时候很难保证所购商品的质量。
