Listen to the tape and do Exercise 1.
现在开始听录音并完成练习1。
Let's discuss Exercise 1 and 3 in Lesson 9.
我们讨论一下第九课中的练习1和练习3。
Exercise 1: Simple dispatch using a selector.
练习1：使用选择器的简单分派。
Figure 1 summarizes the system layout for this exercise
图1归纳了本练习的系统布局
Starting immediately go do that exercise for just 1 minute.
立即开始，只花一分钟来做那项锻炼。
Cogent walk is 1 a good exercise.
切实走路即是1种很好的运动。
Lack of exercise is also an issue. Less than 1% of young people work out once a week.
缺乏锻炼也是原因之一，年轻人每周锻炼1次的不足1%。
Lack of exercise is also an issue. Less than 1 percent of young people work out once a week.
缺乏锻炼也是原因之一，年轻人每周锻炼1次的不足1%。
The second thing to do is to exercise for at least 1 hour daily.
第二个需要做的，是行使每天至少1小时。
Prepare for next class dictation paragraphs: yellow exercise book question 1 page 8.
准备下次的课堂听写：第八页第一题。
Prepare for next class dictation paragraphs: yellow exercise book question 1 page 8.
准备下次的课堂听写：第八页第一题。
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