1 The dentist has decided to extract her bad tooth.　　

A pull out 　 B repair　　C take 　 　　D dig

2 The child’s abnormal behavior puzzled the doctor.　　

A funny 　 B frightening　　C repeated 　 D unusual

3 Gunpowder was used extensively in firearms prior to 1990　　

A in 　B around　　C from 　 　 D before

4 Human facial expressions differ from those of animals in the degree to which they can be deliberately controlled and modified.　
　
A sufficiently 　 B noticeably　　C intentionally 　 D absolutely

5 Foreign money can be converted into the local currency at this bank.　　

A altered 　 B changed　　C bought 　 D sold

　  1. A extract：用力取出;使勁拔出,抽出。Pull out：拔出，拉出。Repair：修理;修補(bǔ)。The roof should be repaired soon. 這屋頂應(yīng)及早整修。Take：拿,取。She took a piece of paper and began to write a letter. 她拿了一張紙,開始寫起信來。Dig：掘（土）;挖（洞,溝等）。They are digging a tunnel through the hill. 他們正在挖一條貫通這座山的隧道。

　　2. D abnormal：不正常的,反常的;不規(guī)則的。Unusual：不平常的;稀有的;奇特的。又如：He has a nose of unusual size. 他有個(gè)罕見的大鼻子。Funny：有趣的;滑稽可笑的;愛開玩笑的。That’s the funniest joke I’ve ever heard. 那是我所聽過的最風(fēng)趣的笑話。Frightening令人害怕的；令人驚恐的。The ghost story is frightening.這個(gè)鬼故事是令人驚恐的。Repeated：重復(fù)的;反復(fù)的;再三的;屢次的。His plans have suffered repeated delays. 他的計(jì)劃屢遭拖延。

　　3. D prior to：在……以前。Before: 在……以前。Only two days remained before the examination. 考前只剩下兩天了。In: 在……期間;在……以后。He’ll come back in a week. 他將于一周之后回來。From：從……起,始于。She is singing from morning to night. 她從早唱到晚。Around：大約,將近。He went to the United States around 1987. 他大約是在一九八七年去美國的。

　　4. C deliberately：故意地,蓄意地。Intentionally：有意地,故意地。Sufficiently：足夠地,充分地。It turned out he had not insured the house sufficiently. 原來他沒有給房屋投足保險(xiǎn)。Noticeably：顯著地,明顯地。Their house was noticeably warmer than ours. 他們的房子明顯比我們的暖和。Absolutely：絕對(duì)地,完全地。It’s absolutely no business of hers.這件事與她毫不相關(guān)。

　　5. B convert：兌換（證券、貨幣等）。Change：兌換（錢）。Let me change the dollar bill for coins. 讓我把這張美元的紙鈔換成硬幣。Alter：改變。Has she altered her mind? 她改變主意了嗎? Buy：買,購買。Mother bought me a pair of jeans. 母親給我買了一條牛仔褲。Sell：賣,銷售。He sold his bike to me for $40. 他以四十美元的價(jià)錢把自行車賣給了我。