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　　1. Relaxation, _______ fresh air, pure water and clean food, is essential to a sound mind and healthy body.

　　A. much less than B. no less than

　　C. no more than D. any less than

　　2. It is far better to do well a bit of work which is well _______ a large fortune.

　　A. worthy to be done than have B. worth doing than to have

　　C. worthwhile to do than have D. worthy of doing than have

　　3. Understanding the cultural habit of another nation, especially_______ containing as many different subcultures as the United States, is a complex task.

　　A.oneB. the one C. that D. such

　　4. Whether or not the next plan will yield any positive results _______ to be seen.

　　A.remain B. remains C.is remained D. have remained

　　5. If ever again_______ happens an accident like this, we will have only ourselves to blame.

　　A. it B. so C. there D. that

　　1. Bno less than “與……同樣(重要)”。全句意為: “放松休息, 就像新鮮空氣、純凈水、清潔的食品一樣, 是健康的身心所不可缺少的?！?/p>

　　2. Bto have a large fortune與to do well a bit of work…是并列不定式。另外，worth, worthy, worthwhile在用法上的區(qū)別是:(1)worth是介詞, 后接動(dòng)名詞或名詞，形成介詞短語(yǔ)。接動(dòng)名詞時(shí), 與主語(yǔ)是動(dòng)賓關(guān)系，其形式是主動(dòng)的，意義是被動(dòng)的。如: The book is worth reading. (2)worthy是形容詞, 置于be動(dòng)詞后或名詞后面, 做后位修飾語(yǔ), 其結(jié)構(gòu)是: be worthy of doing sth., sth. is worthy to be done。(3)worthwhile是形容詞，要與形式主語(yǔ)it并用：It is worthwhile to read the book.worth和worthy都不能用于這種結(jié)構(gòu)。

　　3. Aone 指代前面提到的具有泛指含義的可數(shù)名詞單數(shù), 在該句中指代another nation, 句中屬于泛指，可見B是錯(cuò)誤的。such指代前面講過(guò)的整個(gè)情況，多用作主語(yǔ)。that 指物時(shí)常用來(lái)指代不可數(shù)名詞, 指代可數(shù)名詞時(shí)具有特指含義。

　　4. Bwhether 引導(dǎo)名詞性從句做主語(yǔ), 謂語(yǔ)動(dòng)詞應(yīng)為單數(shù)。另外，remain一般不用被動(dòng)式, 所以B為正確選項(xiàng)。

　　5. C這是there be句型的異化形式，即there be 句型中還可以用be以外的不及物動(dòng)詞，如live, stand, exist, come, remain等。