〈１〉
問１ 人間は非理性的な振る舞いをすることが一般に考えられているよりもはるかに多いこと。
問２ B
問３ D
問４ 同意することを意味する首を縦に振るという動作をしたことに影響され，無意識のうちに他者の意見に同意しやすくなっていたから。（60字）
問５ 客に衝動買いをさせる目的。
問６ A
問７ A・B
〈２〉
問１ the historical relation between humans and animals there
問２ B
問３ E
問４ C
問５ 北海道でアメリカ人指導者の指示の下，エゾシカの天敵だったエゾオオカミを組織的狩猟によって絶滅させたこと。
問６ D・E
〈３〉
Q-A (A flash mob is a sudden public gathering of people which) is organized using email, Twitter, and social networking sites. At the gathering, people participate in pointless activities. (It only lasts for a short time.)
Q-B (Supporters would say that flash mobs encourage) people to come together and express themselves in a unique way, (whereas critics argue that flash mobs prevent) other people from trying to go about their business.
Q-C I would not participate in the event for the following reasons. First, it would bother and even hurt other people. Many people come to the festival and enjoy it differently. Therefore, a snowball fight would be a nuisance to some of them. In addition, there are many sophisticated ice sculptures in the park. What if we happened to damage them? We could not make up for the damage done by our carelessness. Lastly, even worse than these is the fact that a snowball fight is something children do. A sensible person would know better than to do such childish things. (100 words)
〈4〉
(1)－I (2)－L (3)－H (4)－F (5)－M (6)－S
- (7)－D (8)－O (9)－V (10)－U (11)－X (12)－R
