1.I want to provide my boys with a decent education．

　　A．good

　　B．special

　　C．private

　　D．general

　　2．In the process，the light energy converts to heat energy．

　　A．changes

　　B．reduces

　　C．leaves

　　D．drops

　　3．Many cities have restricted smoking in public places．

　　A．limited

　　B．a(chǎn)llowed

　　C．stopped

　　D．kept

　　4． What are my chances of promotion if I stay here?

　　A．retirement

　　B．a(chǎn)dvertisement

　　C．a(chǎn)dvancement

　　D．replacement

　　5．If we leave now，we should miss the traffic．

　　A．direct

　　B．stop

　　C．mix

　　D．a(chǎn)void

解析：

　1．A[解析]我想給兒子們提供體面的教育。decent體面的。如：decent clothes體面的服裝。good好的。最符合題意。如：good environment良好的環(huán)境。special特別的。如：This is a special occasion．這是一個(gè)特殊的場(chǎng)合。private隱私的。如：Fans are always curious about the singer's private life。歌迷總對(duì)歌星的私人生活感興趣。general普遍的。如：the general readers一般的讀者。

　　2． A[解析]在這個(gè)過(guò)程中，光能會(huì)轉(zhuǎn)換成熱能。convert轉(zhuǎn)換。如：convert iron to steel變鐵為鋼。change改變。最符合題意。如：change from an empty space to a busy area從空地變?yōu)榉比A地區(qū)。reduce減少。如：reduce the consumption offuel減少燃料消耗。leave留下。如：He left the book on the desk．他把書留在桌上。drop掉落。如：A bottle dropped on the floor and smashed．瓶子落地摔碎了。

　　3． A[解析]許多城市限制在公共場(chǎng)合抽煙。restrict限制。如：The trees restrict our view．這些樹局限了我們的視野。limit限制。最符合題意。如：He must limit the number of cigarettes he smokes．他必須限制抽煙的數(shù)目。allow允許。如：Please allow me to express my warm welcome to our guests．請(qǐng)?jiān)试S我向來(lái)客表示熱烈的歡迎。stop停止。如：Stop talking．別說(shuō)話。keep保持。如：keep silence保持沉默。

　　4． C[解析]如果我留下，能有多大可能得到提拔?promotion升職。如：May I offer my congratulations on your promotion?請(qǐng)?jiān)试S我為您的晉升向您道賀。retirement退休。如：Your retirement is really a great disappointment to me．您退休了，真是令我非常失望。advertisement廣告。如：This advertisement will capture the attention of TV audiences．這廣告將引起電視觀眾的注意。advancement晉升。最符合題意。如：His advancement to the position of manager was greeted with enthusiasm．他被提升為經(jīng)理，大家都為之歡呼。replacement代替。如：They have got a replacement for him．他們把他替換下來(lái)。

　　5．D[解析]如果現(xiàn)在出發(fā)就能避免交通高峰。miss錯(cuò)過(guò)。如：I missed breakfast this morning．今早我錯(cuò)過(guò)了吃早飯。direct指揮。如：She directed the planning of the festival．她統(tǒng)管節(jié)日安排。stop停止。如：Stop talking．別說(shuō)話。mix混合。如：Mix water and flour．將水和面粉混合。avoid避免。最符合題意。如：Avoid making any noise．避免制造任何噪音。