题目

对食物的酸、碱性判断正确的是（ ） A . 西瓜是酸性食物 B . 猪肉是碱性食物 C . 奶油是酸性食物 D . 大米是碱性食物 答案：C 完形填空。      "This Friday we'll have the yearly Egg Drop Challenge," said our science teacher, Mr. baker. "You can work alone or with a partner."      My friend, Cassie, and I smiled at each other. We always worked on projets   1  .      The   2   of the challenge was simple-to build a protective container to keep an egg from breaking when   3    the stadium wall.      I made my sandwich that afternoon while waiting for Cassie.   4   the butter-cream gave me an idea.      "I have a brilliant design for our   5   container!"I said when Cassie arrived."We can   6   the egg with some butter-cream."      "Why not pit the egg in a basket with a parachute (降落伞)   7   ?" Cassie rolled her eyes. "The parachute is better than that stupid idea."      I couldn't believe it, Of course we'd had our little   8   in the past, but she'd never called any of my ideas"   9   " before. "Then I'll build mine and you build yours!"        10   words had been out, our friendship was challenged. When Friday finally arrived, I had to   11   Cassie's Egg Force One looked pretty good.  12 , my Egg-cellent Egg Cream didn't look quite scientific. We kids carried our containers up three stadium steps and dropped them over the side wall. Those whose eggs broke were out; those whose eggs survived   13   three more steps and dropped them again. This would go on till the last egg broke.      After four rounds, only Cassie and I were   14   . I let go of my box. I heard someone say"ew" after seconds. Had my egg broken? I raced down the  15  . The side walk was dotted with egg shells (蛋壳) from those  16   drops. Finally I found my little Egg-cellent Egg Cream.      "That looks like egg drop soup, Laura,"Cassie said. She was holding her Egg Force One. My   17   raced. Had she won? I looked at her basket.  18  . "My egg bounced  19   ,"she explained, pointing to a broken shell. "A tie (平局),"Mr. Baker said. Cassie looked at me, and her glare   20   . I laughed. She smiled… (     )1.  A. patiently   (     )2.  A. function    (     )3.  A. rolled down (     )4.  A. Spreading   (     )5.  A. butter      (     )6.  A. protect     (     )7.  A. followed    (     )8.  A. ideas       (     )9.  A. wrong       (     )10.  A. Since      (     )11.  A. explain    (     )12.  A. Therefore  (     )13.  A. paced down (     )14.  A. left       (     )15.  A. steps      (     )16.  A. intended   (     )17.  A. eyes       (     )18.  A. Lost       (     )19.  A. around     (     )20.  A. returned   B. silently      B. goal           B. pushed against B. Boiling        B. sandwich       B. replace        B. covered        B. fights        B. stupid           B. While           B. deny           B. Anyway        B. turned around   B. wanted         B. way            B. unexpected    B. hands          B. Dirty          B. out             B. remained    C. together      C. reason            C. thrown at      C. Baking          C. cream            C. carry          C. attached         C. worries        C. brilliant        C. But              C. admit          C. Otherwise         C. walked up      C. chosen         C. wall              C. failed         C. feet            C. Broken          C. in               C. increased D. alone               D. result                    D. dropped over         D. Holding                D. egg                      D. mix                   D. supported               D. challenges             D. scientific           D. And                     D. prove                  D. Besides                  D. went back             D. discovered            D. sidewalk                 D. desired              D. heart                  D. Empty                  D. down                     D. softened