shock 表示"使震惊"语气最强。

amaze 表示"使惊奇，困惑"，常含有惊叹佩服之意。

如：

Her refusal surprised us all. 她的拒绝使我们都感到惊讶。 Your knowledge astonished me.

I was shocked at the news of her death. 听到她去世的消息我十分震惊。

2. confuse vt. 使困惑

I am confused by what you said. 你说的话把我搞糊涂了。

confusing adj. 使人困惑的； confused adj. 困惑的； confusion n. 困惑，糊涂。

3. risk

vt. 冒......的危险to be in danger of to put in danger of

At last he had to risk everything on a single throw. 最后他不得不孤注一掷。

In order to get there on time, we must risk getting caught in a storm.

1）risk n .危险，冒险。如：

He was ready for all risks.

2）at risk 处于危险之中。如：

The environment is becoming worse and worse and wild animals are at risk .

3）risk的常见短语：

at all risks/at any risk 无论冒什么风险，无论如何；

at the risk of 冒......危险，拿......冒险；

run a risk (risks)冒危险；

run the risk of 冒......的危险；

take a risk冒险

4. various

adj. of different kinds不同的，各种各样的。

The answer is the sea weeds produce various chemicals that help keep the seawater clean. 答案是海藻产生了各种各样的化学物质，能够保持海水清洁。

5. Why was the Emperor impressed by Marco? 皇帝为什么对马可印象很深？

impress vt. 意为"留下印象，使铭记"，impress一般不用于进行时。

常用结构：

impress sb. by/with sth. 给某人留下......印象

impress sth. on sb. 使某人牢记某事

make an impression on sb. 给某人留下印象。

The girl impressed her friends with her sense of humour.

The beautiful scenery here made a deep impression on him.

6. The walls were covered in gold and silver and the Hall was so large it could easily seat 6000 people for dinner.

墙用黄金和白银砌成，宫殿大到可以轻而易举地容纳6000人同时进餐。 这是一个由and 连续的