重点单词：

1.stumble 绊倒

Eg. I stumbled over a tree root.

树根绊了我的脚。

2.corps 尸体

Eg. The corpse lay face down in a pool of blood.

尸体俯卧在血泊中。

Eg. When the police exhumed the corpse they discovered traces of poison in it.

警方掘出尸体，发现有中毒的痕迹。

3. vagrant 流浪汉, 漂泊者

He has been leading a vagrant life since his parents died.

自从他父母死亡后就一直过着流浪生活。

重点短语：

1.stumble upon偶然发现

Eg. I stumble upon the rare book in a second-hand bookstore.

我在一家旧书店偶然找到这本珍贵的书。

Eg. Perhaps we'll stumble upon a mutually satisfactory solution for price later on.

也许过一会儿我们会碰到一个双方都满意的方案。

2.be sure of确信

Eg. Can I be sure of a profit if I invest?

我要是投资, 肯定能获利吗?

Eg. You're sure of a warm welcome.

你一定会受到热烈欢迎的。

3.at the door：在门口

Eg. I saw an unfamiliar face at the door.

我在门口看到一张不熟悉的面孔。

Eg. He popped his head in at the door.

他突然将头伸入门内。

佳句妙语：

She's white as death.

她面如死灰。

动词短语结构：

原文：St. John, we must get her warm.

注解：get+sb+adj. 让某人出于......状态

例句：His attitude got me angry.

他的态度令我生气。

原文：Let us take her upstairs.

注解：take+sb+adv. 到某人到某处

例句：Please bring your sister downstairs.

把你的妹妹们带下楼来。

语法透析：

原文：St. John, we would have stumbled upon her corpse in the morning.

解析：这句话使用了虚拟语气，谓语结构是would have stumbled。