题目

二氧化碳与人们的生产和生活有着广泛的联系，下列关于二氧化碳的认识中，正确的一组是（ ） ①在地窖、枯井内二氧化碳含量会比较高 ②二氧化碳在水中的溶解量跟压强成反比 ③绿色植物光合作用时吸收二氧化碳并放出氧气 ④二氧化碳比一氧化碳多一个氧原子． A．①② B．.③④    C．.①③    D．.②④     Where is love? How can we find love in our life?     Once a little boy wanted 1 love. He knew it was a long trip to find where love lived, 2 he got his things ready with some pizzas and drinks and started off. When he passed three streets,he saw an old woman 3 in the park and watching some birds. She looked very 4 .   The boy gave her a pizza. She took it and 5 at him. The smile was so beautiful that he wanted to see it again,so he gave her a Coke. Once again she smiled. The boy was very happy.    They sat there the whole afternoon,eating and smiling,but they said 6 . When it grew dark,the boy wanted to leave. But before he had gone 7 steps (—步) ，he turned around,ran back to the old woman and gave her a hug (拥抱). The woman gave him her biggest smile ever.    When the boy opened the door of his house,his mother was 8 by the look of happiness on his face and asked what had made him so happy. had lunch with love. She has got the most beautiful smile in the world."    At the same time,the old woman's son was also surprised at his mother's pleasure (十夬乐) and asked 9 . “I ate a pizza in the park with love." she said ,“And he is much younger than I thought ”If the world is 10 of love,we can enjoy a better life.() 1. A. meet   B. to meet C met   D. meeting() 2. A. so   B. because   C. but   D. or() 3. A. sit   B. to sit   C. sitting   D. sat() 4. A. full   B. hungry   C. thin   D. happy() 5. A smiled (微笑)   B. cried   C. shouted   D. hit() 6. A. something   B. anything   C. nothing   D. everything() 7. A. a few   B. few   C. a little   D. little() 8. A. surprised   B. sad   C. easy   D. interested() 9. A who   B. why   C. what   D. how() 10. A. afraid   B. filled   C. full   D. out