Q2：本题答案为D。在听力末尾说到，The company's self-driving cars have done well over a million miles across various states in the US, and until now have only reported minor accidents. 无人驾驶车已经运行得非常好的穿越了美国的各大州，直到现在只有少数小事故。由此可见，总体来说做的比较好。
新闻原文2
Q3：本题答案为A。听力原文中说到Tom Moses who works at a nearby national par，可知这个人是在附近的国家公园工作。
Q4：本题答案为B。听力原文中说I have never seen that many bees in one spot. It was very unusual. They were very close together and there was a lot of noise and movements. 我从没见过这么多蜜蜂聚集在一个地方。它们靠得非常近，发出很多噪音。
新闻原文3
Q5：本题答案为A。听力原文第一句点出主旨。A new species of snake has been discovered on a remote island in the Bahamas. 可知是发现了一种新的蛇。
Q6：本题答案为C。听力原文中说到One of the creatures made a dramatic appearance by moving on to the head of the team leader as he slept. 其中一种蛇在这位科学家睡着的时候爬到了他的头部。
Q7：本题答案为D。听力原文中说到The snake has been named silver boa because it is metallic colored and the first specimen found was climbing a silver palm tree. 这个蛇被叫做银蛇因为它金属般的外表，也就是以其颜色命名。
长对话1
Q8：本题答案为C。听力原文中My flight leaves in less than 2 hours. So, could you tell me, what's the quickest way to get there? 我的航班在两小时内就要起飞。所以可以告诉我怎么去机场最快吗？所以原因是两小时内要起飞，其他选项的原因未提及。
Q9：本题答案为B。听力原文中男士说到I'll pay with my credit card.他会用信用卡支付。
Q10：本题答案为A。听力原文中男士说到But I'll need a receipt, so I can charge it to my company.他需要一份收据，这样他可以向公司报账。
Q11：本题答案为D。听力原文中女士问男士would you like to leave a comment on our web page when you have time？她想让这位先生在他们的网站上写个评价。
长对话2
Q12：本题答案为C。听力原文中男生说到Ben’s given up making those terrible faces he used to make.本不再做以前那些鬼脸。
Q13：本题答案为D。听力原文中男生描述他奶奶说过的话For example, she would say, you will get a spot on your tongue if you tell a lie. 如果你撒了谎，你的舌头上会出现斑点。所以是在警示他编故事、说谎的危险性。
Q14：本题答案为A。听力原文中女生说到The one that used to get me was that swans could break your leg when they blow of the wing. 女生相信天鹅在拍打它们翅膀的时候会使你的腿折断，即天鹅会折断人的腿。
Q15：本题答案为B。听力原文中男生说他妻子的奶奶告诉她She said her grandmother reckoned you had to shave your head to get it out. 必须要剃光头才可以取出蝙蝠。
短文1
Q16：本题答案为C。听力原文中说到I was in my twenties, and everything was being renewed. Renewed是更新的的意思，说明一切都在变化。
Q17：本题答案为A。听力原文中说到Meeting people was the thing, and you went to coffee bars where you met friends and spent the evening. 去咖啡厅和朋友见面度过一个晚上，这是最流行的事，was the thing是口语化的表达，意思是很火、很流行。
Q18：本题答案为D。听力原文中说到of course, I was a student。说明作者当时是学生。
短文2
Q19：本题答案为B。听力原文中说到Dogs, man's best friends, have a clear strategy for dealing with angry owners—they look away. New research shows that dogs limit their eye contact with angry humans. 狗是人类最好的朋友，在碰到它们的主人生气时会走开，避免眼神交流。
Q20：本题答案为C。听力原文中说到When dogs looked at expressions of angry dogs, their eyes rested more on the mouth。狗在遇到生气的同伴时会把眼神关注在对方的嘴巴上。
Q21：本题答案为B。听力原文中说到The researchers also note that dogs scan faces as a whole to sense how people are feeling, instead of focusing on a given feature. 研究者们说狗通过整体地看人的脸来判断人的情绪而不是只聚焦在某一个点上。As a whole表示作为整体。
短文3
Q22：本题答案为D。听力原文中说到What do animals do? There are three main ways that animals survive the cold in winter: sleep, adapt or migrate. 动物怎么过冬呢？总体上动物有三种方法度过寒冷的冬天，分别是冬眠、使自身适应环境、迁徙。说明动物有不同的方法来应对寒冷。
Q23：本题答案为C。听力原文中说到To prepare for this before winter, these animals eat extra food to become fat, which gives them the energy they need while they sleep. 在冬天来临之前，选择冬眠的动物会吃更多的食物，这样可以在它们冬眠的时候给予它们能量。所以冬眠时它们消耗之前储蓄的能量。
Q24：本题答案为A。听力原文中说到So some animals, such as mice, collect extra food before winter, and hide it. When winter comes, they return to their hiding places to eat the food. 像老鼠这样的动物，它们在冬天之前会采集更多的食物并把食物藏起来。冬天到来后，它们再去藏食物的地方去吃这些食物，即提前储蓄足够的食物。
Q25：本题答案为C。听力末尾说到Some birds fly in groups for safety, while others fly alone.有些鸟考虑到安全因素成群的迁徙。
From: http://www.hxen.com/CET46/dongtai/2017-06-17/470333.html