Unit2 Heroes-Communication Workshop&Culture Corner學案
(5) be to do可以表示條件或假設,既可用陳述語氣,又可用虛擬語氣。(6) be to do可以表示可能性,相當于can do,用于疑問句或否定句中。(7) be to do 可以用來表示目的(8) be to do可以表示“命中注定……”,常用于過去時中。(9) be to do用于第二人稱,有時用來傳達別人的指示。典題印證in a room above the store, where a party ____________, some workers were busily setting the table.a. was to be held b. has been held c. will be held d. is being held答案:a 考查時態。根據語境,一個聚會將要被舉行,且表示過去的時間,故選a.10 ..., the space shuttle columbia exploded.……,哥倫比亞號航天飛機爆炸了。explode(1) vt. & vi. (使)爆炸;引爆→bombs were exploding all around the city.城里到處都響起爆炸聲。(2) vt.推翻(理論等);破除(迷信等)(3) vi. explode(into/with sth.)爆發;勃然(大怒)明辨異同explode, burst與erupt(1) explode指炸彈、火藥、瓦斯、飛機等的爆炸。(2) burst指提防、血管、氣球等的爆炸或爆裂。(3) erupt指火山的爆發。典題印證根據漢語提示完成句子① there was a huge bang as if someone had explode a rocket (引爆了火箭)outside.