VOA慢速英语:Sleepy Teens, Early Classes: Your Comments

1.I think teenagers, on the average, need eight to ten hours of sleep everyday. It's useless trying to force them to concentrate while they can't concentrate.

on the average平均起来，一般说来

例句：He spends on the average two hours a day on reading.
      他平均每天用两小时读书。

2.Enilton Neymakes in Brazil goes to sleep late and wakes up in the afternoon.

late, later, latter, latest, lately的区别及用法。

1)late adj. & adv. 迟，迟的，晚的，晚期，在晚期。如：

He is never late for school. 他上学从不迟到。

The train was 10 minutes late. 火车晚点十分钟。

南下打工仔经常是早上工，晚下班。

请记住以下几种搭配：

in the late afternoon 傍晚，在下午较晚的时候

in the late 1990's/1990s 在二十世纪九十年代末

work late/far/deep into the night 工作至深夜

late in autumn 深秋

另外， late 用作形容词还可用来表示“已故的，去世不久的；前任的，不久前卸任的”。如：

the late Chairman Liu Shaoqi 前国家主席刘少奇

the late government 前任（上一届）政府

2)later adj. & adv. 为late比较级，意指较迟，较晚一些。如：

two hours later, the ship sank. 两小时后，轮船沉没了。

要记住以下几个固定搭配：

sooner or later 迟早（early or late）

no later than不迟于

later on以后，后来。如：

The problem will be solved sooner or later. 这个问题迟早会得到解决。

另外，later 还可用作状语，表示“后来”之意。如：

Later he became a general. 后来他当上了将军。

3)latter adj. 意思是指（两者中）后者的，后者，反义词是former，（两者中）前者。注意，不要把latter与late的比较级later混淆。如：

Of the two the latter is far better than the former.

两者中后者远比前者好。

4)latest adj. & adv. 为late的最高级。意思是最新、最近或最迟。如：

The radio is broadcasting the latest news about the man-made satellite.

电台正在播送有关人造卫星的最新消息。

5)lately adv. (=recently) 最近，近来，通常用于现在完成时态，如：

The old palace has lately been rebuilt. 古老的宫殿最近得以重建。

3.Thirty-year-old Kika in Spain says: In my opinion, young people are very lazy.

In my opinion表达个人观点

4.It reminds me of that old song: "It's nice to get up in the morning, but it's nicer to stay in bed."

remind of提醒(某人)

例句：I've forgotten his name—will you remind me of it?
      我忘记了他的名字——请提醒我一下好吗?

      He reminded me of visiting the park.
      他提醒我已经参观过这个公园。