D.they know they are useful
答案:C 细节理解题。根据前三段可知,过节爷爷奶奶被忽略会不高兴。
3.Why does the author compare human beings to candles?
A.Because people won't have good eyesight.
B.Because few people can live a long time.
C.Because everyone will be in the aging group.
D.Because life on the earth is relatively short.
答案:D 推理判断题。依据倒数第二段的“Chances are high that their hearts will stop one day.”可知,人生是短暂的。
4.According to the passage the author intends
.
A.to tell the old are living a quite lonely life
B.to encourage people to visit their grandparents
C.to imply few take care of their grandparents
D.to show he is very kind to his grandparents
答案:B 推理判断题。作者在文中谈到了节假日探望祖父母的重要性,尾段的“Don't forget to treat grandparents with respect”提醒读者要尊敬爷爷奶奶,因此选项B正确。
1.tightly adv. 紧紧地;坚固地
2.weakness n. 缺点;弱项
3.sensible adj. 理性的;明智的
4.decorate vt. 装饰
5.essential adj. 基本的;必要的
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