题目

The weather is getting hotter. You are thirsty playing basketball or riding home from school. A cold drink may be just the thing. But be careful what you are drinking. Something that looks cool may not be good for your health. There are plenty of energy drinks on the market. Most of them have beautiful colors and cool names. The lists on them tell you they are helpful to your health. Sounds great!   But after a careful check you may find that most energy drinks have lots of caffeine (咖啡因) in them. These drinks are especially aimed at young people, students, busy people and sports playeHe was down in the mouth because he missed his plane.A. unhappy B. happy C. glad D. relaxed A 【解析】句意“他不高兴，因为他错过了飞机”。A.不高兴的；B.高兴的；C.高兴的；D.放松的。根据because he missed his plane可知，发生了不好的事情，故选A。