appear不及物动词，意为“出现”，反义词是：disappear意思为“消失”。它们的名词形式分别是appearance和disappearance。如：
When we reached the top of the hill, the town appeared below us.
当我们到达山顶时，市镇就呈现在我们脚下。
Dinosaurs disappeared about 65 million years ago. Scientists try to explain their disappearance.
恐龙大约在六千五百万年前就消失了。科学家试着解释它们消失的原因。
9. I say it is special because the dinosaur was covered with feathers!
我说它特别，是因为恐龙身上长有羽毛。
be covered with在句中意为“被……覆盖”，有时还用be covered by。例如：
The road was covered with yellow leaves. The fields were covered by flood. The ground was covered with the white snow.
道路曾被黄叶盖住了。洪水曾淹没了田地。大地曾覆盖着白雪。
另外，cover… with…为主动形式，意思为“用……覆盖”。例如：
The beautiful girl often covers her face with her hands.
那美丽的姑娘经常用手捂着脸。
10. It was founded on October 1, 1949.
它是1949年报0月成立的。
found vt.创立，创办，它与find的过去式和过去分词相同，注意在句中的区别。found的过去式和过去分词是在其后加-ed，即：
find（寻找） found found
found（成立，建立） founded founded
例如：
Mr. Wang is going to found a new factory near our factory. He was very busy this morning. His lost coat was found under the bed at last.
王先生准备在我们工厂附近创办一家新工厂。今天早上他很忙，他丢失的上衣终于在床下找到了。
11. It’s interesting, isn’t it?
它有趣，是吗？
interesting和interested都来源于名词interest，interesting可作表语和定语，主语常指物；interested作表语，主语常指人，常构成be (become) interested in… 对……感兴趣。类似的词还有surprising和surprised。
surprising和surprised都是由surprise变换而来的，前者有主动含义，后者有被动含义，surprising的主语通常是物，而surprised的主语通常是人。Be surprised at + n. (v. + ing) 对……感到惊讶，be surprised后还可接不定式和that引导的从句。例如：
(1) The news from the girl is very surprising. She said that dull film was interesting.
从那个女孩那儿得来的消息非常令人吃惊。她说那个无聊的电影很有趣。
(2) The students were very interested in dinosaurs when they visited the museum. They were surprised at seeing the teacher in front of them. Do you know why they surprised to meet their teacher in the museum?
学生们在参观博物馆时对恐龙很感兴趣。他们很惊讶地看见老师就在他们前面。你知道在参观博物馆时，为什么他们对遇见老师感到很惊讶吗？
12. When the bowl was filled with hot water, the wine would get warm.
当碗里装满了热水，酒就会变热。
Be filled with （某物）被装满……，
其主动式为fill… with… 把……装满……。例如：
When the room was filled wit
《When was it built?(第3页)》出自：www.89xue.com网www.89xue.com h the smoke, we were filling the hole. The hole was filled with sand at last.
上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] 下一页