4．Young adults who quit smoking saw ____ in coughing and other symptoms within a few weeks，a new study indicates．（　　）
A．developmentB．movementC．discouragementD．improvement

分析 一項(xiàng)新的研究顯示：戒掉煙的年輕人在幾周之內(nèi)看到了咳嗽和其他癥狀得到了改善．

解答 答案：D
development發(fā)展；movement 運(yùn)動(dòng)；discouragement沮喪，挫折；improvement提高，改善．根據(jù)題干一個(gè)定語(yǔ)從句修飾年輕人"young adults who quit smoking"和后面"coughing"的關(guān)系，結(jié)合常識(shí)可以得知戒煙之后咳嗽是可以改善的，并在熟知名詞詞義的基礎(chǔ)之上，故選D．

點(diǎn)評(píng) 本題考查名詞的詞義辨析，在熟知名詞詞義的基礎(chǔ)之上結(jié)合具體的語(yǔ)境，得出答案．

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