2.(09广东化学13) 警察常从案发现场的人体气味来获取有用线索,人体气味的成分中含有以下化合物:①辛酸;②壬酸;③环十二醇;④5,9一十一烷酸内酯;⑤十八烷⑥己醛;⑦庚醛。下列说法正确的是
A.①、②、⑥分子中碳原子数小于10,③、④、⑤分子中碳原子数大于10
B.①、②是无机物,③、⑤、⑦是有机物
C.①、②是酸性化合物,③、⑤不是酸性化合物
D.②、③、④含氧元素,⑤、⑥、⑦不含氧元素
1.(09广东理科基础30)三聚氰胺(结构式如图9所示)是一种重要的化工原料,可用于阻燃剂、水泥减水剂和高分子合成等领域。一些不法分子却往牛奶中加入三聚氰胺,以提高奶制品的含氮量。下列说法正确的是
A.三聚氰胺是一种蛋白质
B.三聚氰胺是高分子化合物
C.三聚氰胺分子中含有碳碳双键
D.三聚氰胺的分子式为C3H6N6
第三节 书面表达 (满分35分)
假设你是高二年级的李华,作为交换生9月去了Jenks High School,现已回校。你想联系你的美国老师Mr.Fox,但没有其联系方式,请根据以下几点给你的美方交流伙伴Kirk写一封信,内容包括:
1. 感谢Kirk和他家人对你在美期间的款待、照顾;
2. 询问Mr. Fox的近况并要其联系方式;
3. 邀请Kirk在春节期间来中国感受中国文化。
注意:1. 词数100-120;开头已写出,不计入词数 2. 可适当增加细节。
Dear Kirk,
I am now back in Chengdu No.7 High School, safe and sound. ________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Best regards,
Yours sincerely,
Li Hua
第二节 短文改错(共10小题,每小题1分,共10分)
Born to be the basketball player, Kobe Bryant 76. __________
showed his shooting talent in an early age. He has always 77. __________
occupied with proving his skills on the court and improving 78. __________
himself. Having enjoyed a successfully high school basketball 79. __________
career, Kobe went straight into the NBA after graduated. So 80. __________
far, Kobe has led the Lakers to four NBA championships. 81. __________
Thus, he is never content with his past achievements. He 82. __________
is famous for getting his teammates stay up late practising. 83. __________
When he learned a new move, he asks his teammates to practise 84. __________
it with him after it is perfect. “When you win, you have to 85. __________
constantly look for ways to get better.” Kobe said.
第一节 单词拼写 (共10小题;每小题0.5分,满分5分)
66. With the government’s aid, those _________(影响) by the deadly earthquake have moved to their new settlements.
67. The 10th Western China International Economy and Trade ______(博览会) held in Chengdu lately proved to be a great success.
68. It’s often believed that humans are e______ with a special ability to speak a language.
69. The data ______(显示) that the unemployment rate is decreasing in China in spite of the global financial crisis.
70. They know you are waiting for their reply anxiously. I think your letter will get i______ attention.
71. He is studying very hard towards his dream that next summer he will be ______(录取) to Peking University.
72. Senior 3 students should do some exercise every day so as to release great p_______.
73. Class 11 did very well in the 50-meter relay race due to their wonderful _______(合作).
74. Some top officials in Chongqing who ______(滥用) their power were sent to court and got severe punishment.
75. The ______(呼吁) to save energy made by the Students’ Union, to some extent, has contributed to students’ good habits.
66. __________ 67. __________68. __________ 69. __________70. __________
71. __________ 72. __________73. __________ 74. __________75. __________
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