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完形填空，将每题选项逐一填写至答案处即可，不用再标注题目序号Last year, I volunteered at a 1 center. 2I arrived, I saw huge 3 of plastic bottles on the ground. I wondered, “4are we going to do with those?”A group of people from the recycling centre welcomed us. One person explained that bottles and caps(瓶盖) 5different materials(材料) and had 6uses. He said, “Today, you are going to remove the plastic covers and caps from all of these plastic bottles.” I put 7my mask and gloves, and started working.There were straws(稻草)and trash inside the bottles, so I had to remove 8. Some of my friends were not comfortable doing this work and neither was I, but it was important work and was part of a larger effort to improve 9environment. After we finished 10the covers and caps from the plastic bottles, we crushed(压扁)all the plastic bottles and put them in a large box. After a long day, we finally finished our work.1.A.fitnessB.shoppingC.recyclingD.town2.A. BecauseB.ThoughC. Since D. As soon as3. A.dropsB.piles C.pairs D.cups4. A.HowB.WhatC.Why D.Where5. A.was made ofB.was made inC.were made ofD.were made in6. A.differentB.the sameC.no D.few7. A.upB.off C.on D.down8. A.themB.it C.that D.this9. A.aB.an C.the D./10. A.removeB.removedC.to removeD.removing
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阅读理解，请将答案按照顺序逐一填写，不用标注序号Although plastic bags are cheap and useful, they bring about a lot of pollution. Scientists say plastic bags can take hundreds of years to break down. But according to The Guardian, we now may have a helper to clean up the plastic trash—worms.Federica Bertocchini is a Spanish biologist (生物学家). One day, she put a few wax worms in a plastic bag and closed it. When she came back, the worms had made holes (洞) in the bag and ran away!Bertocchini then found that the worms eat plastic. There is a special enzyme (酶) inside the worms that can digest (消化) plastic. In 24 hours, 100 worms can eat 92 milligrams (毫克) of plastic. That means the group of worms could eat up a plastic bag in a month!So, should we use worms to clean up plastic trash? Bertocchini said she’d rather use the enzyme. “Maybe we can produce it at high-scale (大规模), rather than using a million worms in a plastic bag,”she said.1. According to this passage, the worm may be a helper to clean up the plastic trash.A. Right.B. Wrong.C. Not mentioned.2. The wax worms Bertocchini put in the plastic bag made holes in the bag and ran away.A. Right.B. Wrong . C. Not mentioned.3. The wax worms also eat branches and leaves.A. Right.B. Wrong.C. Not mentioned.4. The group of worms could eat up a plastic bag in a day.A. Right.B. WrongC. Not mentioned.5. Bertocchini would rather use a million worms than use the enzyme.A. Right.B. Wrong .C. Not mentioned.
下列几种食物中按蛋白质含量高低排列正确的是（ ）
下列食物中，生物价最高的是_________。（ ）
鸡蛋中蛋白质属于（ ）
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