重点讲解：
1. threaten to do sth.
威胁；恐吓做某事；
eg. He said army officers had threatened to destroy the town.
他说陆军军官们曾威胁要摧毁那座小镇。
eg. He can even threaten to call the deal off.
他甚至还可以威胁要取消这笔交易。
2. go down
（太阳）落下；
We sat and watched the sun go down.
我们坐着观看日落。
As the sun went down the whole sky became suffused with a red glow.
当太阳西沉时，整个天空布满了一片红色晚霞。
3. be attracted to
吸引住；被诱惑；
eg. In spite of her hostility, she was attracted to him.
尽管自己心存敌意，她还是为他所吸引。
eg. He was nice looking, but I wasn't deeply attracted to him.
他长得很帅，可我对他不是很有感觉。
