问题 不定项选择题

下列关于甲苯的实验事实中,能说明侧链对苯环性质有影响的是[ ]

A.甲苯通过硝化反应生成三硝基甲苯

B.甲苯能使酸性高锰酸钾溶液褪色

C.甲苯燃烧时产生浓烈的黑烟

D.1mol甲苯可与3mol氢气发生加成反应

答案

答案:A

完形填空

阅读下面的短文,并根据短文后的要求答题(请注意问题后的字数要求)。

Each spring brings a new blossom of wildflowers in the ditches (路沟) along the highway I travel daily to work.

There is one particular blue flower that has always caught my eye. I've noticed that it blooms only in the morning hours, the afternoon sun is too warm for it. Every day for approximately two weeks, I see those beautiful flowers.

This spring, I started a wildflower garden in our yard. I can look out of the kitchen window while doing the dishes and see the flowers. I've often thought that those lovely blue flowers from the ditch would look great in that bed alongside other wildflowers.

Everyday I drove past the flowers thinking, “I’ll stop on my way home and dig them.” “Gee, I don’t want to get my good clothes dirty...” Whatever the reason, I never stopped to dig them. My husband even gave me a folding shovel(钎) one year to be used for that expressed purpose.

One day on my way home from work, I was saddened to see that the highway department had mowed the ditches and the pretty blue flowers were gone. I thought to myself, “Way to go, you waited too long. You should have done it when you first saw them blooming this spring.”

A week ago we            that my oldest sister-in-law has a terminal brain tumor(脑瘤晚期). She is 20 years older than my husband and unfortunately, because of age and distance, we haven’t been as close as we all would have liked.

I couldn’t help but see the connection between the pretty blue flowers and the relationship between my husband's sister and us. I do believe that God has given us some time left to plant some wonderful memories that will bloom every year for us.

And yes, if I see the blue flowers again, you can bet I’ll stop and transplant them to my wildflower garden.

小题1:What’s the best title of the passage? (within 10 words)

                                                                             

小题2:Fill in the blank in the last but two paragraphs with proper words or phrases to complete the sentence. (within 10 words)

                                                                             

小题3:Which sentence in the passage can be replaced by the following one?

I had wanted to stop and dig them but I didn’t make it anyhow.

                                                                             

                                                                             

小题4:Translate the underlined sentence in the last but one paragraph into Chinese.

                                                                             

                                                                             

小题5:What do you learn from the passage? (within 30 words)

                                                                             

                                                                             

问答题 简答题