题干

Paul had to write a history paper,  _____ he couldn’t find time to do it.

A:but

B:so

C:because

D:if

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答案(点此获取答案解析)

A

同类题2

阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项。

I remember, as a kid I had questioned Mom “Why doesn’t Dad love me!” Mom frowned. “Who said he doesn’t love you!” “Well, he never tells me,” I complained. “He never tells me either,”she said, smiling. “But look how hard he works to take care of us, to buy us food and clothes, and to pay for this house. That’s how your father tells us he loves us.”

After Mom died, I began visiting Dad every morning before I went to work. He was frail and moved slowly, but he always had a glass of freshly squeezed orange juice for me. Such a gesture, I knew, was as far as Dad had ever been able to go in expressing his love. Every time after drinking the juice, I walked over, hugged him and said, “I love you, Dad.” My father never told me how he felt about my hugs, and there was never any expression on his face when I gave them.

Then one morning, pressed for time, I drank my juice and made for the door. Dad stepped in front of me and asked, “Well!” “Well what?”I asked, knowing exactly what. “Well!” he repeated, looking everywhere but at me. I hugged him extra hard. It was the right time to say what I’d always wanted to. “I’m fifty years old, Dad, and you’ve never told me you love me.” My father stepped away from me. He picked up the empty juice glass, washed it and put it away. “You’ve told other people you love me.” I said, “but I’ve never heard it from you.” Dad looked very uncomfortable. I moved closer to him. “Dad, I want you to tell me you love me.” Dad took a step back, his lips pressed together. He seemed about to speak, and then shook his head. “Tell me”, I shouted. “All right I love you,” Dad finally blurted. His eyes watered, then overflowed.

I stood before him, stunned and silent. My father loved me so much that just saying so made him weep. Mom had been right. Every day of my life Dad had told me how much he loved me by what he did and what he gave. “I know, Dad,” I said. “I know.” And now at last I did. 

同类题5

阅读材料,回答问题。

材料:2015年10月5日,诺贝尔奖基金会宣布中国药学家屠呦呦获得诺贝尔医学(生理学)奖.12月7日,她在瑞典卡罗林斯卡学院用中文发表了“青蒿素的发现:传统中医献给世界的礼物”的主题演讲。在演讲中总结了她成功的经验:目标明确、坚持信念是成功的前提。“1969年,我被指令负责并组建‘523’项目课题组,承担抗疟中药的研发,我决心不辱使命,努力拼搏,尽全力完成任务! “学科交叉为研究发现成功提供了准备。“从1959年到1962年,我参加西医学习中医班,系统学习了中医药知识。化学家路易˙帕斯特说过 ‘机会垂青有准备的人’。当抗疟项目给我机遇的时候,西学中的序曲为我从事青蒿素研究提供了良好的准备。我收集整理历代中医药典籍,走访名老中医并收集他们用于防治疟疾的方剂和中药、同时调阅大量民间方药。编写了以640种中药为主的《疟疾单验方集》。中国传统中医药是一个丰富的宝藏,值得我们多加思考,发掘提高。”在演讲的结尾,屠呦呦再次强调了中医药的重要性。她说:“通过抗疟药青蒿素的研究经历,深感中西医药各有所长,二者有机结合,优势互补,当具有更大的开发潜力和良好的发展前景。”

    在困境面前需要坚持不懈。“为了尽快上临床,在动物安全性评价的基础上,我和科研团队成员自身服用有效部位提取物,以确保临床病人的安全。团队精神、无私合作加速科学发现转化成有效药物。衷心感谢当年从事523抗疟研究的中医科学院团队全体成员,感谢全国523项目单位的通力协作。”她表示:“没有大家无私合作的团队精神,我们不可能在短期内将青蒿素贡献给世界。”