例句：
Discoveries in science and technology are thought by "untaught minds" to come in blinding flashes or as the result of dramatic accidents.
分析：
1、 主语为Discoveries；
2、 谓语为are thought，这是一个被动句；
3、 宾语为to come in blinding flashes or as the result of dramatic accidents；
4、 如1所述，修饰Discoveries的词是in science and technology，理解为“在科学技术方面”的“发现”；
5、 如2所述，are对应1中的主语Discoveries，被动句中，动作的实施者为"untaught minds"，这里用一个类型的思维方式来代表有这样思维方式的一类人；
6、 如3所述，宾语是两个部分组成，to come in blinding flashes和as the result of dramatic accidents，可以分别和主句组成这样两句话：①Discoveries are thought to come in blinding flashes；②Discoveries are thought as the result of dramatic accidents，两个意思用连词or连接。
7、涉及词组：
①untaught minds 没有受过教育的人
②be thought to do 被认为做某事
③as the result of 作为…的结果，由于…而…
④science and technology 科技
⑤blinding flashes 炫目的闪光，灵光一现
⑥dramatic accidents 戏剧性的事件
8、涉及语法：
被动语态的用法：
Ⅰ. 一般现在时的被动语态构成：is / am / are + 及物动词的过去分词
Our classroom is cleaned everyday.
I am asked to study hard by my mother.
Knives are used for cutting things.
Ⅱ. 一般过去时的被动语态构成：was / were + 及物动词的过去分词
A new shop was built last year.
Dinosaur eggs were laid long long ago.
Ⅲ. 现在完成时的被动语态构成：has / have + been + 及物动词的过去分词
This book has been translated into many languages.
Many man-made satellites have been sent up into space by many countries.
Ⅳ. 一般将来时的被动语态构成：will+ be + 及物动词的过去分词
A new hospital will be built in our city.
Many more trees will be planted next year.
Ⅴ. 含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词
Young trees must be watered often.
Your mistakes should be corrected right now.
The door may be locked inside.
Your homework can be handed in tomorrow.
Ⅵ. 现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词
Uncle Wang is mending my bike now.→
My bike is being repaired by Tom now.
They are planting trees over there. →
Trees are being planted over there by them.
Ⅶ 不定式的被动语态：to + be + 及物动词的过去分词
There are two books to be read. →
There are twenty more trees to be planted.
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