题干

在甲,乙,丙,丁四个培养皿内分别放两张吸水纸,在将相同数量的大豆种子放在上面,在不同的条件下进行培养.数日后记录的种子发芽的情况如表:

装置

甲

乙

丙

丁

场所

日光下

日光下

黑暗中

黑暗中

温度

23℃

23℃

23℃

23℃

吸水纸干湿状态

潮湿

干燥

潮湿

干燥

数日后种子发芽情况

全部发芽

没有发芽

全部发芽

没有发芽

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    It ____(get) dark. Paul looked out of the window and signed (叹气). Dad said he could come home by 5:30, but it was almost 7:00. Even if Dad came back, it wouldn't be much fun playing baseball in the dark. Paul walked into his room and____(throw) his baseball into the corner. He tried to do some homework, but couldn't.

    Paul couldn't understand why Dad was so busy. He threw himself into the sofa and soon fell asleep. His book____(open) to the first page.

    The next day at school, Paul didn't hand in his homework and failed a test. Mrs. Green, his teacher, asked him to stay after school. “This isn't like you. What's wrong?”

    Paul just sat there quietly. “Paul, if you don't want to talk, I will. I know that something wrong     with you, but you have to get it out. You need to tell someone.”

    As Paul walked home, he thought of what Mrs. Green said. When Paul got home, he called his dad. But there was no answer. Then it went to voicemail (语音信箱). Paul began talking: “Dad, I can't play with you next weekend. I ____(get) lots of problems with my homework. Also, I really don't want to spend another day looking out of the window and waiting. Whenever you break our plans, Dad, it  ____(hurt) me. It's not too late to rebuild our relationship, but we have to start small. I call you to ask you to help me with my homework sometime. Dad, I love you.”

    As Paul ended the call, he felt much relaxed. He didn't know whether his dad____(be) different, but it didn't matter. He himself changed. He expressed his feelings to the right person. He had a clear head as he did his homework that evening.