金屬鉀在氧氣中燃燒能生成超氧化鉀(KO₂)，KO₂與CO₂或水作用均生成O₂�，F(xiàn)將一定量鈉鉀合金在足量氧氣中燃燒，將反應(yīng)產(chǎn)物置于水中并通入足量的CO₂，充分反應(yīng)后，最多放出O₂的體積是最多吸收CO₂的體積的，則原鈉鉀合金中鈉與鉀的質(zhì)量之比為(　　)

A．23?36 　　 B．46?39 　　　 C．115?39 D．23?78

　　From the very beginning, Martin felt that he was bound up with（與……緊緊地在一起）his lovely little patient. One day, following some tests , Betty gave the doctor a big hug（擁抱）.

　　A few months later the doctor removed not only the tumour（腫瘤）, but also the entire lower left side of Betty’s gum（牙齦）and jawbone. Because Betty was so young, Martin was hopeful that her jawbone might regenerate.

　　Within three months, Betty’s tumour grew as large as an orange, changing the natural appearance of the left side of her small, delicate （ = thin; not strong）face. Soon she couldn’t even close her mouth, and as her eating problems worsened, Betty ‘s weight dropped from 20 kilos to 15. Martin knew from experience that it might invade the brain.

　　The only other possibility was thorough radiation therapy （放射療法）. Night after night, Betty's father gave her injection, but the tumour remained as big as ever. Then one evening. Morgan noticed that the tumour had begun to change. It was actually becoming smaller! For two months her tumour appeared to be going away for ever. In the coming months, Betty’s tumour continued to appear. She was able to eat solid food once again. Her jawbone was regenerating. The tumour was gone.

　　67．What do you think the underlined word regenerate means? It means “________”.

　　A. lose one’s life

　　B. give a new life to

　　C. be made by hand

　　D. pass on from one generation to another

　　68．If Betty’s jawbone didn’t regenerate, the doctors ________ .

　　A. would rebuild her jaw

　　B. would continue the treatment

　　C. would use new medicine

　　D. could do nothing else

　　69．If the brain should be invaded, the result would ________.

　　A. prevent her growth

　　B. reduce her weight

　　C. cause her brain damaged

　　D. affect her eyesight

　　70．What did the doctors do two months later?

　　A. They continued their observations.

　　B. They gave up the operation on Betty.

　　C. They found out what caused Betty’s strange disease.

D. They declared that Betty’s strange disease was cured.

從每小題的A、B、C、D四個(gè)選項(xiàng)中，找出其劃線部分與所給單詞的劃線部分讀音相同的選項(xiàng)，并在答題卡上將該選項(xiàng)涂黑。

1.beach      A．head　　　B．great　　　C．break　　　    D．season

2.educate     A. medal      B. prepare     C. effect          D.  complete

3.doubt      A．habit　　  B．a(chǎn)bove　　 C．club　　　    D. climb

4.exist       A．expert    B．example　　C．expect　　　  D．excellent

5.question    A emotion    B situation      C suggestion      D information

語音知識（共5小題；每題1分，滿分5分）
從 A、B、C和D四個(gè)選項(xiàng)中，找出其劃線部分與所給單詞的劃線部分讀音相同的選項(xiàng)。
1. dangerous    A. Canadian    B. January      C. balance       D. advanced
2. exact        A. expert      B. exhibition     C. exercise      D. exist
3. ground      A. house       B. country      C. group        D. cough
4. spare　　    A. fear　　　  B. earn　　　   C. pear　　　    D. beard
5. smooth    A. feather      B. tooth       C. thief        D. warmth