Unit 3 The Million Pound Bank Note- Vocabulary and Useful Expressions學(xué)案
after they settled the problem, they were going ahead fast. after a short rest, they went ahead with their experiment.3. by accident 【名師點(diǎn)撥】by accident = by chance表示“偶然地，意外地”，在句中作狀語。如：as a matter of fact, i landed in britain by accident. (p18)4. account for【名師點(diǎn)撥】account for表示“解釋，說明”，在含義上相當(dāng)于explain。如：i earned my passage by working as an unpaid hand, which accounts for my appearance. (p18)he has been asked to account for his absence.5. even if【名師點(diǎn)撥】even if=even though表示“即使，盡管”，引導(dǎo)讓步狀語從句，常指把握性不大或假設(shè)的情況，從句中要用一般現(xiàn)在時來表示將要發(fā)生的動作。如： it would be wrong of me not to trust a gentleman such as yourself, sir, even if you do dress in a rather usual way. (p22)【知識拓展】as though = as if意思為“似乎，好像”，既可以引導(dǎo)方式狀語從句，也可引導(dǎo)表語從句，從句中的謂語動詞常用虛擬語氣。as though / if后面除了可以跟句子外，還可跟動詞不定式、形容詞、介詞短語和分詞。if a pencil is partly put into the water it looks as if it were broken.the man we followed suddenly stopped and looked as if to see whether he was going in the right direction. ( 春招)熱點(diǎn)語法名詞性從句是指在復(fù)合句中的作用相當(dāng)于名詞，分別作主語、表語、賓語和同位語，即名詞性從句包括主語從句、表語從句、賓語從句和同位語從句。連接詞的選用是考查的重點(diǎn)，that只起連結(jié)作用，在從句中不作任何成分；if 和whether有詞義；連接代詞在從句中做主語、賓語和定語；連接副詞在從句中作狀語。如：i wonder what has happened to him.there is no doubt that the earth is becoming warmer and warmer year by year. when he will come back is not known.why not tell me where we shall discuss our plan?1. 表語從句【課文原句】that is why we’ve given you the letter. (p18)【名師點(diǎn)撥】why是連接副詞，引導(dǎo)表語從句，是名詞性從句中的一種。why在表語從句中作邏輯上的原因狀語。如：this is why he was absent from the meeting. 2. 賓語從句【課文原句】i wonder, mr adams, if you mind us asking a few questions. (p18)【名師點(diǎn)撥】i wonder if / whether …是表示委婉請求的語句，通常比較正式。if引導(dǎo)的句子作wonder的賓語從句。注意：1) 如果賓語從句為陳述句，連接詞用that；賓語從句為一般疑問句，連接詞用if或whether；賓語從句為特殊疑問句，連接詞用原疑問詞。如：i hope (that) you will write to me as soon as possible.