原形 现在分词 过去式 过去分词
lay（摆放；产卵）laying laid laid
lie（躺） lying lay lain
lie（说谎） lying lied lied
(1) It’s ten o’clock now. Don’t lie in bed all morning.
都十点钟了，别一上午都躺在床上。
(2) She is an honest girl. She won’t lie to me. She has never lied to me.
她是个诚实的姑娘。她不会说谎的。她对我从来都没撒过谎。
8. That means dinosaurs lived long before human beings appeared!
那就是说恐龙在人类出现之前就存在了。
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
英语教案－When was it built?由www.yf1234.com收集及整理,转载请说明出处www.yf1234.com上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] 下一页
英语教案－When was it built?