6. 解析：选D。bad manners表示“没礼貌的”；后一空是while(sb. is) eating soup的省略形式。

5. 解析：选D。be accustomed to doing sth. 习惯于做某事。

4. 解析：选A。考查固定结构。present sb. with sth. 把……呈现给某人。

3. 解析：选A。be addicted to doing sth.沉溺于做某事，其中to为介词。

2. 解析：选D。feel是感官动词，无被动，故用feels。

5. If the teachers are familiar with their students’ abilities,they can predict how students will do on a test.

提升练习

4. I can’t evaluate his ability without seeing his work.

3. The accident occurred on a cold and rainy night.

2. When you come across some new words in the text, it is better to guess their meaning before you consult the dictionary.

5.　 rely on