Question

请根据句意从方框中选出合适的词，并用其适当形式填空，使句子通顺
…important    culture    active    thirty-three    necessary…
1. The principal gave us a talk on the            of protecting the environment yesterday.
2. All of us are grateful to him because he always            helps us solve problems.
3. It’s             to tell him the details of the trip. He won’t go with us tomorrow.
4. There are many history and              differences between China and England.
5. ―Who is the              President of the USA?  
―Harry S. Truman.

Answer 1

小题1:importance
小题2:actively
小题3:unnecessary
小题4:culrural
小题5:thirty-third

小题1:考查词性转换。句意“校长昨天给我们做了演讲，是关于保护环境的重要性的。”应该用important的名词形式，故填importance。
小题2:考查副词。修饰动词用副词，actively积极地，故填actively。
小题3:考查形容词的否定形式。他不和我们一起去，没必要告诉他旅行的详细内容。故填unnecessary。
小题4:考查词性转换。culture的形容词是cultural，作定语修饰differences。故填cultural。
小题5:考查序数词。第三十三即thirty-third。故填thirty-third。