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1.
extra / additional |
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[解释] extra 指不包含本身而额外加上去的部分。 additional 指在原有基础上添加上去的。 |
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[练习]用上面所提供的辨析词的适当形式填空 1). There is an ________ charge for heavy bags. 2). I don’t suppose they wanted any ________ help. Keys: 1). additional 2). extra |
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2. instrument / equipment |
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[解释] instrument乐器,仪器;为某个用途而使用的工具。 equipment 指生产、研究所需要的设备、装置;是不可数名词。 |
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[练习]用上面所提供的辨析词的适当形式填空 1). Our school has been given some new ________. 2). They each play several _________. Keys: 1). equipment 2). instruments |
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3. perform / act |
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[解释] perform 侧重表演的能力、技巧或效果;其主语可以是人,也可以为动物。 act 侧重“扮演、担任”某一角色,侧重于动作,主语通常是人。 |
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[练习] 1). The monkeys ________ very well at the circus. 2). He acted Deng Xiaoping with deep feeling. Keys: 1). perform 2). acted |
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4. come up with/come up/ come up to |
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[解释] come up with意为“想出”“提出”“赶上”。 come up作“(意想不到地)发生”“引起注意”“得到考虑”解。 come up to意为“达到(某水平、标准)”。 |
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[练习]用上面所提供的辨析词的适当形式填空 1). It’s wonderful for you to _________ such a good idea. 2). I _________ her as she was rounding the corner. 3). His work does not _________ what we expect of him. Keys: 1). come up with 2). came up with 3). come up to |
12.将质量为100kg的物体从地面提升到10m高处,在这个过程中,下列说法中正确的是:A.重力做正功,重力势能增加1.0×104J B.重力做正功,重力势能减少1.0×104J
C.重力做负功,重力势能增加1.0×104D.重力做负功,重力势能减少1.0×104J
一单项选择题(4*12=48分)
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