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阅读材料，分析回答： 西安八中同学家因为饲喂观赏小鸟而喂养着黄粉虫。黄粉虫原是粮仓中的害虫，发育过程类似于菜粉蝶。 是一个善观察、爱动脑、勤动手的同学。她在饲养中发现，铺在养虫盒子里的泡沫塑料上有细小的噬咬过的痕迹。是黄粉虫在吃塑料吗？于是，她用黄粉虫继续做实验，给实验组黄粉虫加喂塑料餐盒片。结果发现虫子确实在吃塑料盒。 她又对这些黄粉虫的粪便做了静电、燃烧、浸水等实验，发现其粪便不产生静电吸附、不可燃烧、不漂浮，并产生腐败臭味。她的这一发现在2004年全国第18届科技创新大赛中获得二等奖。 (1)你认为黄粉虫的发育过程属于_______。 (2)在“人造生态系统”的成分中，黄粉虫应属于___________；请写出其中的食物链_________ 。 (3)根据上述实验结果，请你写出相关的结论：________。
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【简答题】Spot Dictation British people now have more free time and holidays than they did twenty years ago. The average number of working hours has 1 , and by the mid-1980s almost all fulltime manual 2 were en...
【简答题】Listen and fill in the blanks with the words you hear. (答案可手写拍图上传) Flying has____1_____the world! It’s now possible to travel around the globe quickly and easily. Jumping on a plane and jetting off on...
【简答题】In the old days, his father was f______ to keep a single thing of his own.
【单选题】Father ...a laptop for me as My birthday present.
A.
was offered
B.
is offered
C.
offered to buy
D.
offered buying
【简答题】个人独资企业
【单选题】Passage Questions 11 to 15 are based on the following passage.Halloween (October 31) is a holiday widely celebrated with different names in many countries. Although it originated as a religious holida...
A.
A children’s day.
B.
A trick or treat.
C.
A religious day.
D.
A day for UNICEF.
【单选题】The laptop computer(便携式电脑) is popular all over the world because it is small enough for us to put on the upper part of our legs. People use them on trains and airplanes, in airports and hotels. These ...
A.
very convenient to use in a lot of places
B.
cheap enough for everyone to get one
C.
small enough to put into one's pocket
D.
easy to take to and from classrooms
【单选题】—I hear you _________ the latest laptop for a week. —No, my father ______ it for me as a birthday present a month ago.
A.
have bought, bought
B.
have bought, have had
C.
have had, have bought
D.
have had, bought
【简答题】Unit 2 getting ready B部分,1到5题答案分别是:
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