题目

下图有CO2实验，其中只能证明CO2的物理性质的是（） A . B . C . D . 答案：A  A little girl lived in a simple and poor house on a hill. Usually she 1        play in the small garden. She could see over the garden fence and across the valley a wonderful house with shining golden windows high on another hill. 2      she loved her parents and her fami?ly,she desired to live in such a house and 3        all day about how wonderful and exciting 4       must feel to live there. At the age when she gained some 5        skill and sensibility (识另lj力) ，sheher mother for a bike ride 7        the garden. Her mother finally allowed her to go,8      her keeping close to the house and not 9        too far. The day was beautiful. The little girl knew10where she was heading！11      the hill and across the valley,she rode to the 12        of the golden house.  13      she got off her bike and put it against the gate post,she focused on the path 14         to the house and then on the house itself. She was very disappointed when she 15        that all the windows were 16        and rather dirty.  So 17        and heart-broken,she didn't go any further. She 18        ，and all of a sudden she saw an amazing 19      . There on the other side of the valley was a lit?tle house and its windows were golden. Looking at her little home,she 20         that she had been living in her golden house filled with love and care. Everything she dreamed was right there in frontof her nose！1. A. might   B. should   C. would   D. must2. A. Unless   B. Although   C. Since   D. But3. A. dreamed   B. worried   C. asked   D. shouted4. A. this   B. that   C. it   D. which5. A. different   B. scientific   C. musical   D. basic6. A. begged   B. blamed   C. invited   D. paid7. A. inside   B. outside   C. through   D. along8. A. insisting on   B. relying on   C. arguing about   D. wondering about9. A. travelling   B. running   C. riding   D. walking 10. A. madly   B. rapidly   C. exactly   D. possibly 11.  A. Over   B. Down   C. Around   D. Beside 12. A. windows   B. steps   C. centre   D. gate 13. A. Until   B. As   C. While   D. Because 14.A. getting   B. introducing   C. leading   D. moving 15.A. felt   B. learned   C. concluded   D. found 16.A. transparent   B. bright   C. plain   D. wide 17.A. anxious   B. angry   C. serious   D. sad 18.A. turned around   B. cheered up   C. settled down   D. dropped in 19.A. hill   B. valley   C. background   D. sight 20.A. imagined   B. decided   C. realized   D. guessed