【抛砖引玉】 同学们通过本单元课文“A Problem For The Detective”，可以看到课文中所鞭挞的尔虞我诈的丑恶现象，同时受到深刻的教育。为人要诚实，遵纪守法，要有社会道德。
一、教法建议
【抛砖引玉】
同学们通过本单元课文“A Problem For The Detective”，可以看到课文中所鞭挞的尔虞我诈的丑恶现象，同时受到深刻的教育。为人要诚实，遵纪守法，要有社会道德。
单元双基学习目标
Ⅰ. 词汇学习
step (vi .) will (n .) step-mother , check out , afterwards , go through , look into , build up , wealthy , divided up , anyway , private , left-handed , right-handed , brief , to the point , foresee , instruct , signature
Ⅱ. 交际英语
Possibility and impossibility
I / She / He may (not ) do ….
2. It is likely that … . / It is possible that … . / She is not likely to do … .
3. Can this building be 17th century ?
4. Do you mind if I bring a friend along with me next time ?
5. Will / Would you be able to come to the Party ?
6. Would it be possible to do … ?
7. It looks as if / though it might rain later .
8. We’ll probably do … . / I doubt if … .
9. It appears to me that we’ll have to go on foot .
10. That’s / It’s quite impossible . / It’s very unlikely . / That’s hardly possible . / That’ll never happen . / Probable not .
Ⅲ. 语法学习
在这一单元，同学们要学习归纳定语的使用。在高考测试中，经常出现一个名词的前面被几个形容词所修饰的情况，形容词的排列是有一定的顺序性的。大致为：
限定词 (all , twice , a , this , my , each , three , last )→ 强化形容词(certain , perfect , complete , slight , extreme)→ 描绘性或者主观评价或者质量形容词(expensive , beautiful , fine , brave , dirty)→ 表示大、小、长、短、高低的形容词(large , small , little , long , short , tall , high)→ 表示形状的形容词(round , straight , aquare , flat) → 表示年龄、新旧的形容词(old , young , new , modern)→ 表示颜色的形容词(如：red , green , brown)→ 表示国家、出处、来源的形容词(French , Chinese) → 表示物质、材料的形容词(wooden , stone , plastic , brick)→ 表示用途、类别的形容词(medical , sports , evening , story)→ 名词 。
【指点迷津】
表示原因和进行意义的介词 (短语)
※ 表示原因的介词
1 . because of 表示引起结果的直接原因，意义与连词 because 相同。
He retired last month because of illness / because he ill .
2 . for 表示内在的、心理上的原因，常与表示喜、怒、哀、乐等情感名词连用;还可表示某种动作或结果的起因。而连词 for 则表示某种结果的补充理由或显而易见的原因。
a ) He trembled for fear .
b ) Thank you for your help .
c ) When he was still a young man , he was forced to leave his homeland for political reasons .
3 . by 表示外部的，尤其是的或无意中造成某种结果的原因。
a ) Her body was bent by age .
b ) The general died by his own hand .
c ) She took your umbrella by mistake .
4 . at 表示某种情绪或动作的原因，多与“喜，怒，哀，乐”等义的词连用，常译作“听到……”，“看到……”。
a ) The whole nation was in deep sorrow at the news .
b ) He jumped at the news .
5 . on 表示能作为依据或条件的原因，常译为“依照……”。
He has given up smoking on medical advice .
6 . of 和 from 表原因时常与 die 类似意义的词连用。die of 指因疾病，冻饿，或害怕，羞愧等内因或外因造成的死亡。与疾病名词连用时，二者均可。from 还可表示懒惰等造成某种后果的原因。
a ) His son having been killed in the war , the man died of a broken heart .
b ) In big cities during cold winter months , many old people die from the polluted air .
c ) She died of / from cancer .
d ) He wasn‘t ill ; he stayed in bed from laziness .
7 . with 指生理上或情感上的由外界到内心的原因，意为“随着……”。
a ) The man bent with age .
b ) He turned red with anger .
8 . in 表示引起某种状态或过程的原因。
a ) He is rolling on the floor in pain .
b ) He rejoiced in his own success .
