Many lifestyle patterns do such ________great harm to health that they actually speed up ________weakening of the human body. A.a; / B./; the C.a; the D./; / 答案:B 考查冠词的用法。句意:许多生活方式对人类的健康有害,它们加速了人类身体的衰弱。“对……有害”用短语“do harm to”表示,中间无需加冠词;之后的weakening是动词的ing形式表示抽象的概念,需要加上the。句型转换。根据要求完成下列句子。一空一词。 1. Your key is on the floor.(对划线部分提问) your key? 2. You can call Mary. Her telephone number is 65324466.(变同义句) You can Mary 65324466. 3. Tom is a good student.(变一般疑问句) a good student? 4. Those are orange chairs. (变为单数形式) is orange chair. 5. Are these your video tapes?(作肯定回答) Yes, . 6. Are these your keys?(变陈述句) my keys. 7. That is a pencil sharpener. (变为复数形式) are pencil . 8. The baseballs are on the desk. (变否定句) The baseballs on the desk.