練習材料：

NCE--第四冊

Lesson 42-3 Recording an earthquake

Why does a person standing in a bus or train tend to fall when a sudden start is made? It is because his feet move on , but his head stays still. A simple experiment will help us a little further. Tie a heavy weight at the end of a long piece of string. With the hand held high in the air,hold the string so that the weight nearly touches the ground. Now move the hand to and fro and around but not up and down. It will be found that the weight moves but slightly or not at all. Imagine a pen attached to the weight in such a way that its points rests upon a piece of paper on the floor. Imagine an earthquake shock shaking the floor, the paper, you and your hand. In the midst of all this movement, the weight and the pen would be still.

[wa?] [d?z] [?] [?p??sn] [?st?nd??] [?n] [?] [b?s] [??] [tre?n] [t?nd] [tu?] [f??l] [w?n] [?] [?s?dn] [stɑ?t] [?z] [me?d]? [?t] [?z] [b??k?z] [h?z] [fi?t] [mu?v] [?n] , [b?t] [h?z] [h?d] [ste?z] [st?l]. [?] [?s?mpl] [?ks?p?r?m?nt] [w?l] [h?lp] [?s] [?] [?l?tl] [?f??e?]. [ta?] [?] [?h?vi] [we?t] [?t] [ei] [?nd] [?v] [?] [l??] [pi?s] [?v] [str??]. [w?e] [e?] [h?nd] [h?ld] [ha?] [?n] [ei] [e?],[h??ld] [e?] [str??] [s??] [e?t] [e?] [we?t] [?n??li] [?t???z] [e?] [gra?nd]. [na?] [mu?v] [e?] [h?nd] [tu?] [?nd] [fr??] [?nd] [??ra?nd] [b?t] [n?t] [?p] [?nd] [da?n]. [?t] [w?l] [bi?] [fa?nd] [e?t] [e?] [we?t] [mu?vz] [b?t] [?sla?tli] [??] [n?t] [?t] [??l]. [??m???n] [?] [p?n] [??t??t] [tu?] [e?] [we?t] [?n] [s??] [?] [we?] [e?t] [?ts] [p??nts] [r?sts] [??p?n] [?] [pi?s] [?v] [?pe?p?r] [?n] [e?] [fl??]. [??m???n] [?n] [???θkwe?k] [??k] [??e?k??] [e?] [fl??], [e?] [?pe?p?], [ju?] [?nd] [j??] [h?nd]. [?n] [e?] [m?dst] [?v] [??l] [e?s] [?mu?vm?nt], [e?] [we?t] [?nd] [e?] [p?n] [w?d] [bi?] [st?l].

任務配置：

L0+L4

知識筆記 ：

練習感悟：

9.14

今天是課文第三部分，比較容易讀。但句子中的一些表達方式要注意學習。單詞部分要注意rest作不及物動詞時，表示“倚，靠，被支撐”。詞組“rest on/upon”表示“被擱在，停留在”。詞組“to and fro”表示“來來往往地，往復地”。

簡書到9.28才能恢復更新，這是后來補的。