11-12学年度第472期7版Quiz time答案：
高二版
D1 1. race 2. ambition 3. approaches 4. secretly 5. attention
6. preparations 7. route 8. survive 9. picture 10. equipment
D2 1-4 CBDC
D3 1-3 BBC
答案解析
D2
1. C。由“The white noise drowns out any sudden sounds that might wake you up.”这句话可以得出答案。Drown out的意思是“淹没，压过”。
2. B。从“they can give us energy”，“The negative ions in the pajamas are able to take away pain and tiredness”，和“These ions also allow you to enter a deep sleep more quickly and carry on sleeping deeply for longer”可知abc正确，d文章中没有提到。
3. D。文章里提到这个鸵鸟枕头之所以叫这个名字，是因为使用它的时候看上去就像是鸵鸟把头埋在沙子里；提到了人们可以把脑袋和双手放进这个枕头里小憩一下与外界隔绝；提到了它是给上学和上班的人设计的。所以AＢＣ都提到了。文中没有说到它的制作材料。
4. C。由“… by speeding up blood flow and increasing the oxygen in your blood”可知，这种高科技的负离子可以加速血液循环，增加血液里的氧气量，由此来看，它能够作用于人们的身体内部。
D3
1. B。从第一段的“Every day he added more to his dam and to his house”可知B正确。这只河狸是秋天搬过来安家的，冬天的时候才开始啃那棵大枫树，所以A不对。CD文章都没有提到。
2. B。从第二段的“To our amazement, however, he started chewing on a very large maple tree”以及“We were amazed at the challenge this beaver was attempting”可知，作者对于河狸敢于挑战这么大的枫树感到惊叹。由“when the weather allowed, he would come back and chew a bit more”可知，天气不好的时候，河狸就不出来了，所以A不对。第三段的“As spring arrived... The tree was about to fall.”说明春天到来时，树几乎要倒了但是还没有倒，所以C不对。D文中没有提到。
3. C。由全文尤其是最后两段的“we need to set goals for tomorrow”以及“keep focused on your future goal”可判断，文章的主旨是：我们应该给自己的将来制定计划，并不遗余力地去实现它。
