Unit 12 You’re supposed to shake hands.
◎ pleasure是名詞，表示“高興”，“快樂”，“娛樂”時，為不可數名詞；表示“樂趣，高興的事”時，為可數名詞。如：it is one of my greatest pleasures.它是我最大的樂趣之一。
◎pleasant是形容詞，意為“使人感到愉快（滿意）”，一般用作定語。如主語指物，也可用作表語。
六. 語法：
be supposed to do 句型大練兵
★be supposed to do… 常用來表示被要求、希望做某事，含有必須、應該或理應做某事的意義，常意為“理應；被期望”，相當于should。
★be supposed to do…時態、人稱和數的變化在動詞be上體現，to為動詞不定式符號，后面接動詞原形。
【典型例題】
否定句練兵
you are supposed to tell her this bad news. （改為否定句）
you tell her this bad news.
【融會貫通】
be supposed to do的否定句式，即在be動詞后加not。此時相當于should not或be not allowed to do，意為“不應當做；不被許可做”。應填寫：aren’t supposed to。
疑問句練兵
1. he is supposed to get there at six o’clock. （改為一般疑問句）
he get there at six o’clock?
2. bill is supposed to call his father as soon as possible. （對劃線部分提問）
bill as soon as possible?
【融會貫通】
be supposed to do轉化為一般疑問句式時，直接將be的相應形式提到主語前。第2題考查特殊疑問句。應填寫：1. is; supposed to 2. what is; supposed to do。
同義句練兵
parents should let their children know some good manners. （改為同義句）
parents let their children know some good manners.
【融會貫通】
be supposed to do意為“理應、應該”，與should同義。應填寫：are supposed to。
主動句練兵
mr wang is supposed to be the best teacher in our school. （改為主動語態）
we mr wang the best teacher in our school.
【融會貫通】
sb. / sth. be supposed to be…其主動形式為“suppose sb. / sth. to be＋形容詞/名詞”，意思是“認為某人/某事……”。應填寫：suppose; to be。
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