英語(yǔ)：Unit 1 Festivals around the world學(xué)案（新人教版必修3）
16. set off
出發(fā)；動(dòng)身；使爆炸
what time are you planning to set off tomorrow?
你打算明天幾點(diǎn)鐘啟程?
the terrorist set off a bomb in the city centre and killed six people.恐怖分子在市中心引爆了炸彈，殺害了6個(gè)人。
聯(lián)想拓展
set off for a place 出發(fā)到某地
set about doing sth.開(kāi)始（某工作）；著手做某事
set out 從某地出發(fā)上路
set out to do sth.開(kāi)始做某事
set sth. up 擺放或豎起某物；創(chuàng)立，建立
set sth. aside 將某事物放在一邊；
（為某目的）節(jié)省或保留金錢或時(shí)間
set down記下；寫下
高手過(guò)招
用set相關(guān)短語(yǔ)的適當(dāng)形式填空（原創(chuàng)）
①the new government must finding solutions to the country’s economic problems.
②the children the fireworks in the yard.
③she a bit of money every month.
④they a statue in honour of the national hero.
⑤they’ve on a journey round the world.
答案：①set about②set off③sets aside
④set up⑤set off/out
重點(diǎn)句型
17. the country, covered with cherry tree flowers, looks as though it is covered with pink snow.
（節(jié)日里）整個(gè)國(guó)度到處是盛開(kāi)的櫻花,看上去就像是覆蓋了一層粉紅色的雪。
as though/as if 意為“好像”。
聯(lián)想拓展
as though/as if引導(dǎo)方式從句和表語(yǔ)、狀語(yǔ)從句：
①引導(dǎo)方式狀語(yǔ)從句
she acted as though nothing had happened.
她裝得好像什么事也沒(méi)發(fā)生過(guò)似的。
注意：當(dāng)從句主語(yǔ)和主句主語(yǔ)一致,且從句謂語(yǔ)中含有動(dòng)詞be時(shí), 可把主語(yǔ)和be一起省略。
he looked about as though (he was) in search of something.
他四下張望, 好像在尋找什么。
②引導(dǎo)表語(yǔ)從句
it looks as if it’s going to rain.看樣子要下雨了。
③as though和as if從句是用虛擬語(yǔ)氣, 還是用陳述語(yǔ)氣, 完全根據(jù)具體情況而定。如果從句表示的意思與事實(shí)完全相反, 或者純粹是一種假設(shè), 通常用虛擬語(yǔ)氣。
the child talks as if she were an adult.
那孩子說(shuō)話的樣子好像她是個(gè)大人。
高手過(guò)招
用括號(hào)內(nèi)所給單詞的適當(dāng)形式填空（原創(chuàng)）
①the pencil looks as if it (break) with half of it in the glass of water.
②li ming speaks english very well as though he (be) an englishman.
③it seems as if our team (be) going to win.