现有如下各种说法：①在水中氢、氧原子间均以化学键相结合 ②金属和非金属化合时一定形成离子键 ③离子键是阳离子、阴离子的相互吸引力 ④根据电离方程式HCl===H+＋Cl-，判断HCl分子里存在离子键 ⑤H2分子和Cl2分子的反应过程是H2、Cl2分子里共价键发生断裂生成H原子、Cl原子，而后H原子、Cl原子形成离子键的过程。上述各种说法正确的是[ ]
A．①②⑤
B．都不正确
C．④
D．①
答案：B
| 完形填空 | |||
| There was once a lonely girl who wanted love very much. One day while she was walking in the forest, she found two birds. She took them home and put them in a small 1 . She was happy to have two "friends". She 2 them with love and the birds grew strong. One day the girl forgot to close the door of the cage. The 3 of the two flew out of the cage. The girl was afraid that it would fly away. She caught it quickly. She felt glad that she caught the bird before it could fly away. Suddenly she couldn't 4 a sound from the bird. When she opened her hand, the bird was already(已经) dead. Her 5 killed(杀死) the bird! Then she saw 6 bird jumping up and down 7 the cage. She could feel its great need for freedom. It wanted to fly into the blue sky. So she let it fly away 8 . The bird circled(转圈) once, twice, and three times. The girl 9 as the bird flew. She didn't care about losing the bird any more. She wanted it to be happy. Suddenly the bird flew closer and landed softly on her shoulder. It sang the 10 song she had ever heard (她所听过的). The fastest way to lose love is to hold it too tightly, and the best way to keep love is to give it wings. | |||
| ( )1. A. box ( )2. A. looked for ( )3. A. stronger ( )4. A. listen ( )5. A. love ( )6. A. one ( )7. A. outside ( )8. A. sadly ( )9. A. watched ( )10.A.worst | B. basket B. looked at B. lazier B. make B. joke B. the other B. inside B. happily B. saw B. oldest | C. cage C. looked after C. weakest C. describe C. luck C. another C. beside C. loudly C. looked C. newest | D. bag D. looked over D. smallest D. hear D. wish D. other D. behind D. highly D. heard D. sweetest |