练习材料：

NCE--第四册

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.

[waɪ] [dʌz] [ə] [ˈpɜːsn] [ˈstændɪŋ] [ɪn] [ə] [bʌs] [ɔː] [treɪn] [tɛnd] [tuː] [fɔːl] [wɛn] [ə] [ˈsʌdn] [stɑːt] [ɪz] [meɪd]? [ɪt] [ɪz] [bɪˈkɒz] [hɪz] [fiːt] [muːv] [ɒn] , [bʌt] [hɪz] [hɛd] [steɪz] [stɪl]. [ə] [ˈsɪmpl] [ɪksˈpɛrɪmənt] [wɪl] [hɛlp] [ʌs] [ə] [ˈlɪtl] [ˈfɜːðə]. [taɪ] [ə] [ˈhɛvi] [weɪt] [æt] [ði] [ɛnd] [ɒv] [ə] [lɒŋ] [piːs] [ɒv] [strɪŋ]. [wɪð] [ðə] [hænd] [hɛld] [haɪ] [ɪn] [ði] [eə],[həʊld] [ðə] [strɪŋ] [səʊ] [ðæt] [ðə] [weɪt] [ˈnɪəli] [ˈtʌʧɪz] [ðə] [graʊnd]. [naʊ] [muːv] [ðə] [hænd] [tuː] [ænd] [frəʊ] [ænd] [əˈraʊnd] [bʌt] [nɒt] [ʌp] [ænd] [daʊn]. [ɪt] [wɪl] [biː] [faʊnd] [ðæt] [ðə] [weɪt] [muːvz] [bʌt] [ˈslaɪtli] [ɔː] [nɒt] [æt] [ɔːl]. [ɪˈmæʤɪn] [ə] [pɛn] [əˈtæʧt] [tuː] [ðə] [weɪt] [ɪn] [sʌʧ] [ə] [weɪ] [ðæt] [ɪts] [pɔɪnts] [rɛsts] [əˈpɒn] [ə] [piːs] [ɒv] [ˈpeɪpər] [ɒn] [ðə] [flɔː]. [ɪˈmæʤɪn] [ən] [ˈɜːθkweɪk] [ʃɒk] [ˈʃeɪkɪŋ] [ðə] [flɔː], [ðə] [ˈpeɪpə], [juː] [ænd] [jɔː] [hænd]. [ɪn] [ðə] [mɪdst] [ɒv] [ɔːl] [ðɪs] [ˈmuːvmənt], [ðə] [weɪt] [ænd] [ðə] [pɛn] [wʊd] [biː] [stɪl].

任务配置：

L0+L4

知识笔记 ：

练习感悟：

9.14

今天是课文第三部分，比较容易读。但句子中的一些表达方式要注意学习。单词部分要注意rest作不及物动词时，表示“倚，靠，被支撑”。词组“rest on/upon”表示“被搁在，停留在”。词组“to and fro”表示“来来往往地，往复地”。

简书到9.28才能恢复更新，这是后来补的。