Sea water contains salt .
This auditorium will contain 3,000 people .
〖点拨〗
(1) contain 和 include 虽然都有"包含"的意思，但 contain 可用于表示包含所含之物的全部或部分，而 include 则只是包含一部分。试对比：
The parcel contained a dictionary . 那包裹里装的是一本字典。
The parcel included a dictionary . 那包裹里也包括了一本字典。
The tour includes a visit to Paris . 这次旅行包括游览巴黎。
The basket contains a variety of fruits . 这篮子装有各种水果。
(2) including 可以作介词连接介词短语。试比较：
Many women were waiting to buy that kind of cloth , including my mother .
Many women were waiting to buy that kind of cloth , my mother included .
可以这样说，include 着重"被包含者只是整体中的一部分"。contain 着重"内有"。
2. advise 作及物动词是"忠告、劝告、建议"
The doctor advised a soft diet . 医生建议进软食。 〖点拨〗
(1) advise + doing
He advised getting plenty of sleep and eating good meals .
(2) advise sb to do 建议某人干……。advise sb not to do sth = advise sb against doing 建议某人不要干
The teacher advised us not to read carelessly . = The teacher advised us against careless reading .
对比：The teacher advised our reading carefully . (动名词复合结构)
(3) advise that + 主语 + (should) do
She advised that he spend his holidays in Heinan .
对比：（误）Sharon suggested me to ask Dr Yang for help .
（对）Sharon advised me to ask Dr Yang for help .
（对）Sharon suggested / advised that I should ask Dr Yang for help .
（对）Sharon suggested / advised my asking Dr Yang for help .
（对）I was advised to ask Dr Yang for help by Sharon .
(4) advice 是不可数名词，表达"一条建议"用：a piece / bit / word of advice 。
3. score (比赛的) 得分；（单复数相同）二十
The score at the end of the game was 5 to 4 against the visiting team . 比赛结果为 5 比 4 ， 客队败北。
What's the score now ? 现在比分是多少 ？
〖点拨〗
(1) scores of 许多，大批
The exhibition has scores of visitors every day .
(2) score 前有数词时，score 用单数，其后的 of 常省略。但在代词或者起定语作用的指示代词及物主掉次前的 of 不能省略。
Three score of them are League members .
Three score of those eggs are his .
She has two score (of) eggs . (这种情况下最好不用 of )
4. discuss 作及物动词是"讨论，议论"。名词形式是 discussion 。
I've something of great importance to discuss with you .
After careful discussion the two parties reached an agreement on this matter .
〖点拨〗
(1) discuss 后直接接名词、疑问词 + to do ，不接 about / on 。但discussion 后可以接about 。
（错）We have discussed about the problem .
（对）We have discussed the problem .
（对）We have had a discussion about the problem .
(2) discuss sth with sb 和某人讨论……
We will discuss the changes of our school with them later .
(3) discuss freely 自由讨论，discuss fully / thoroughly 充分讨论，discuss keenly 激烈讨论，under discussion 在讨论中，have a long discussion about / on sth 对……进行长时间的讨论， a heated / hot discussion 热烈的讨论。
5. suggestion 建议
Your suggestion is very helpful .
〖点拨〗