完形填空 At the age of six, I was paying a visit to my grandfather's farm in Kansas.Grandpa had sent me into the 1to gather pecans(美洲山核桃)for us to enjoy later. Picking pecans was not an easy job and my basket was only half full.I wasn't about to 2Grandpa down.Just then something caught my 3.A large brown squirrel was a few feet away.I watched as he picked up a pecan, hurried to a tree and 4in a large hole in the trunk.A moment later the squirrel 5out and climbed down to the ground to pick up another nut.Once again, he took the pecan back to his hiding place. Not so 6anymore, I thought.I dashed over to the tree and looked into the hole.It was 7with pecans!Golden pecans were right there for taking.This was my 8.Handful by handful, I scooped all of those pecans into my basket.Now it was full!I was so 9of myself.I couldn't wait to show Grandpa all the pecans.Therefore, I ran back and shouted, "Look at all the pecans!"He looked into the basket and said, "Well, well, how did you find so many?"I told him how I'd 10the squirrel and taken the pecans from his hiding place. Grandpa praised me for being smart in observing the squirrel and his habits.Then he did something that 11me.He handed the basket back to me and put his arm gently around my shoulders. "That squirrel worked very hard to gather his winter 12of food, "he said."Now that all of his pecans are gone, don't you think that little squirrel will 13 the cold winter?" "I didn't think about that, "I said. "I know, "Grandpa said."But a good man should never take advantage of someone else's hard work." Suddenly I felt a bit 14.The image of the starving squirrel wouldn't leave my mind.There was only one thing I could do.I carried the basket back to the tree and poured all the nuts into the hole. I ate no pecans that night, but I had something much more fulfilling-the 15of knowing I had done just the right thing. ( )1. A. rooms ( )2. A. let ( )3. A. sweater ( )4. A. joined ( )5. A. jumped ( )6. A. strange ( )7. A. covered ( )8. A. turn ( )9. A. afraid ( )10. A. driven ( )11. A. annoyed ( )12. A. supply ( )13. A. escape ( )14. A. guilty ( )15. A. inspiration B. woods B. settle B. basket B. lived B. held B. secret B. filled B. choice B. ashamed B. followed B. satisfied B. cost B. spend B. unconfident B. expectation C. holes C. have C. eye C. discovered C. stood C. anxious C. rebuilt C. chance C. careful C. protected C. surprised C. support C. survive C. embarrassed C. impression D. roads D. keep D. hand D. disappeared D. found D. patient D. decorated D. achievement D. proud D. caught D. delighted D. preparation D. flee D. nervous D. satisfaction

题目标签：核桃山核桃

【判断题】云南大泡核桃的主要特征是树体高大，果大、皮薄、出仁率高，出口量大

正确

错误

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【单选题】Less Is More It sounds all wrong—drilling holes in a piece of wood to make it more resistant to knocks. But it works because the energy from the blow gets distributed throughout the wood rather than ...

since

for

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【单选题】Less Is More It sounds all wrong-drilling holes in a piece of wood to make it more resistant to knocks. But it works because the energy from the blow gets distributed throughout the wood rather than ...

A uniform substance doesn’t cope well with knocks because only a small proportion of the material is actually (8) . All the energy from the blow goes towards breaking the material in one or two places, but often the pieces left (9) are pristine (未经破坏的).

But instead of the energy being concentrated in one place, the holes provide many weak spots that all absorb energy as they break, says Vincent. "You are controlling the places (10) the wood breaks, and it can then absorb more (11) , more safely. "

The researchers believe the principle could be applied to any material- (12) example, to manufacture lighter and more protective packaging. It could (13) be used in car bumpers, crash barriers and arm our for military vehicles, says Ulrike Wegst, (14) the Max Plank Institute for Mental Research in Stuttgart. But she emphasizes that you (15) to design the substance with the direction of force in mind. "The direction of loading is crucial," she says.

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