高三英語Zoology
the teacher explained the text quite simply. 老師簡單地解釋了一下課文。
what may be of greater importance is to observe how primates live in the world. 比較重要的事情是觀察靈長目動物是怎樣生活的.【點撥】這個句子涉及到 “of+抽象名詞”相當于該名詞相應的形容詞。不過,這種結構常用于較正式的場合,書面語中尤為常見。再看下面幾個句子:
e.g. this book will be of great value to him in his students. (=be very valuable)
the book is of much interest. (=be very interesting)
常用于這一結構的修飾語還有:great,little ,some ,any, no, not, much等
常見的抽象名詞有importance, value, use, help, benefit(利益、好處),significance(意義、重要性)。最后需要提及的是,“be of + 名詞”結構的否定形式一般采用否定名詞的做法:
“be of no + 名詞”。
e.g. he is of no colour, for he has been ill for two weeks.
他毫無血色,因為他患疾兩周了。
as far as the study of english was concerned, what he said was of no point.
就學習英語而言,他所講的并未切中要害。
“be of +名詞”還可以表達以下幾種意義:
1、表示“具有,具備”
e.g. her story is of some colours of the truth.
她的故事有點真實感
the party's 12th congress is of epoch making significance.
黨的十二大具有劃時代的意義。
2、表示“屬于”
e.g. the products are of first-rate quality.
這些產品的質量是屬于第一流的。
3、表示“包含”、“包括”、“類別”等
e.g. the americans are of almost all colures and races.
美國人幾乎包括各種各樣的膚色及種族。
his whole life was of best glory.她的一生是非常光榮的。
4. 這種結構還可表示“年齡”.“出身”“等級”等
we are of the same age. 我們年齡相同。
he was of noble birth and high rank. 他出身于高貴門庭。grammar
情態動詞表推測
一、對目前的行動或狀況的推測(情態動詞+do)
(1)、在肯定句中,表示很有把握的推測時用must,而不太有把握時則用may, might或could,三者依次could的語氣最弱。
e.g. you must be very tired. 你一定很累。
(= i am sure that you are very tired.) ( 很有把握)
you may / might / could be very tired. 你可能很累吧!
(=perhaps / maybe you are very tired.)(不太有把握)
(2)、在否定句中,can't 則表示“不可能”,語氣最強,而相應地may not, might not 語氣弱些,表示“可能不”。
e.g. he can't be at home. 他不可能在家。(很有把握)
he may not / might not be at home. 他可能不在家。(不太有把握)
(3)、疑問句中,通常用can表推測。
e.g. — someone is knocking at the door.
— who can it be ? 可能是誰呢?
where can he be now? 他現在有可能在哪呢?
二、對過去的動作或狀況的推斷常用“情態動詞+have done”。語氣強弱與以上三點相同,可依次類推。但表示“過去不可能”時,除了可用can't have done之外還可用couldn't have done。