4．Michael has had a bad cold and a sore throat for three days．This morning，he had a high fever and a running nose，so his mother took him to the doctor．Here are the directions of the medicine that Dr．Wang has prescribed（開處方） for Michael．
DOSAGE（劑量）：Adults and children 12years of age and older take 2spoonfuls of this medical liquid every 6hours．Do not take more than twelve spoonfuls in 24hours．Children 6years old to 12years old take half of the adult dosage，not more than 6spoonfuls per day．Do not use this product in children under 6years of age．This will provide overdose and could cause serious health problem．
WARNING：Do not take the medicine any more than the suggested dosage unless directed by a doctor．Keep the medicine away from the reach of children under six years old．Patients with high blood pressure，heart disease or stomach trouble are forbidden to take this medicine．This medicine may cause sleepiness．Do not drive or operate any machine while taking this medicine．Chronic cough，which usually lasts a long time，is dangerous and harmful．If your cough continues for three days，discontinue use and ask your doctor for advice．
21．Who should take the medicine prescribed？C
A．Someone with high blood pressure or heart disease．
B．A patient who is suffering from stomach trouble．
C．A teenager who has a fever and a sore throat．
D．A patient who has a chronic cough for a week．
22．How much dosage should an eleven-year-old child take？B
A．Two spoonfuls per day．B．Four spoonfuls per day．
C．Eight spoonfuls per day．D．Ten spoonfuls per day．
23．Under what condition should the patient stop taking this medicine？A
A．The patient's cough lasts for more than three days．
B．The patient is highly stressed．
C．The patient has a running nose for more than 24hours．
D．The patient is bleeding．
分析 本文屬于說明文閱讀，作者通過這篇文章主要向我們描述了米迦勒生病后去醫(yī)院開藥方后一張藥方的說明，介紹了這種藥的功能和服用條件，注意事項等．
解答 21．C．細節(jié)理解題．根據(jù)文章第一段Michael has had a bad cold and a sore throat for three days．This morning，he had a high fever and a running nose，so his mother took him to the doctor"可知發(fā)燒和喉嚨痛的人需要開藥；故選C．
22．B 細節(jié)理解題．根據(jù)文章第二段"children 6 years old to 12 years old take half the adult dosage，not more than 6 spoonfuls per day"可知一個十一歲的孩子應該服用八勺劑量；故選B．
23．A．細節(jié)理解題．根據(jù)文章最后一段"if your cough continues for three days，discontinue use and ask your doctor for advice"可知病人在高度緊張情況下停止服用這種藥；故選B．
點評 考察學生的細節(jié)理解和推理判斷能力，做細節(jié)理解題時一定要找到文章中的原句，和題干進行比較，再做出正確的選擇．在做推理判斷題不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進行合乎邏輯的推理判斷．
