131.Some people who are very intelligent and successful in their fields find _______ difficult to succeed in language learning.
    A. which B. how
    C. that D. it
    132.The Ocean is more than 4000 miles _______.
    A. wider B. widest
    C. wide D. in wide
    133.Now you can see _______ you should consult the dictionary last， not first.
    A. which B. what
    C. why D. how
    134.In one type of laboratory test all the variables _______ one are controlled.
    A. by B. and
    C. but D. or
    135.Small _______ it is， an atom can still be seen.中華考試網(wǎng)
    A. that B. as
    C. so D. where
    參考答案：
    131.正確答案：D答案解析：it在這里做形式賓語。句意為：一些在自己領域才智過人并且非常成功的人發(fā)現(xiàn)，在語言學習上取得成功是很困難的。
    132.正確答案：C答案解析：空格處應該用形容詞原形，more than 4000 miles wide：4000多英里寬。
    133.正確答案：C答案解析：賓語從句。you should consult the dictionary last， not first：你應該最后查字典，而不是首先去查。
    分析句意和各選項的意思可以看出，答案是C.see在本句中意思是“明白”。
    134.正確答案：C答案解析：根據(jù)句子意思來確定答案，需要添入的詞應該有“除了”的意思。句意為：在一類實驗室測試中，除了一個變量外其余所有變量都在掌握之中。
    135.正確答案：B答案解析：本句屬于as/though引導的讓步從句，將表語或狀語提前(形容詞， 副詞， 分詞， 實義動詞提前)。