问题
选择题
（09平原）下列是小明课堂笔记中记录的有关化学用语，其中准确无误的是（ ）
A．氦的元素符号：Ha
B．2个碳酸根离子：2CO3
C．氧化铝的化学式：Al2O3
D．镁在空气中燃烧：Mg＋O2
MgO2
答案
答案：C
① 相关知识点：化学用语② 解析思路：氦的元素符号：He 2个碳酸根离子：2CO32- 2Mg＋O2
2MgO
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（09平原）下列是小明课堂笔记中记录的有关化学用语，其中准确无误的是（ ）
A．氦的元素符号：Ha
B．2个碳酸根离子：2CO3
C．氧化铝的化学式：Al2O3
D．镁在空气中燃烧：Mg＋O2MgO2
答案：C
① 相关知识点：化学用语② 解析思路：氦的元素符号：He 2个碳酸根离子：2CO32- 2Mg＋O22MgO
| 完形填空。 | |||
| 阅读下面短文，掌握其大意，从每题所给的A 、B 、C 、D 四个选项中，选出最佳选项。 One day, I heard an American boy say to a Chinese girl student, "You speak very good English."But the girl answered, " No, no. My English is very poor." The foreigner was quite 1 at the answer. Thinking he had not made 2 understood or the girl had not 3 him clearly, he said , " Yes , indeed, you speak very well." 4 the girl still kept saying , " No." In the end the American boy could not understand and didn’t know 5 to say. What’s wrong with the girl’s answer? She didn’t 6 a compliment (恭维)in the same way as the American people do . She should answer , " Thank you” instead of " No" . She 7 understood what the American boy had said, but she thought she should be modest. In the 8 , people will feel proud and 9 when they are praised . So if someone says the 10 you have cooked are very delicious , you should say , " Thank you ." In our country we think being modest is a virtue ( 美德) and being proud is a bad thing , but in my opinion , being confident does not 11 being proud , so sometimes you should be confident 12 being modest. 13 you are modest and say , "No , I'm afraid I can’t do it well" , while working in a western country, the others may think that you really cannot do it . If you often say "No" , you will certainly be looked down upon by 14 . When asking for a job , if one says something like "Yes , I can certainly do it " instead of " Let me have a try ” , he or she will 15 get it . So in the west , you should be brave to show your self-confidence. | |||
| ( )1.A.excited ( )2. A. itself ( )3. A. heard ( )4. A. Though ( )5. A. when ( )6. A. receive ( )7. A. hardly ( )8. A. east ( )9. A. dutiful ( )10. A. dishes ( )11. A. think ( )12. A. as soon as ( )13. A. Unless ( )14. A. another ( )15. A. fail to | B. surprised B. herself B. watched B. Although B. which B. accept B. really B. south B. modest B. cups B. say B. as well as B. Until B. the other B. expect to | C. relaxed C. himself C. listened to C. Or C. what C. refuse C. rarely C. west C. shameful C. glasses C. ask C. instead of C. Whether C. the others C. succeed in | D. frightened D. themselves D. looked at D. But D. how D. disagree D. badly D. north D. confident D. bowls D. mean D. in spite of D. If D. others D. believe in |