问题 单项选择题

女性绝育术的并发症除外

A.膀胱、肠道损伤

B.输尿管损伤

C.感染

D.出血及血肿

E.绝育失败

答案

参考答案:B

阅读理解

Never go into a supermarket hungry! This is a good piece of advice. If you go shopping for food before lunchtime, you’ll probably buy more than you plan to. Unfortunately, however, just this advice isn’t enough for shoppers these days. Modern shoppers need an education in how and how not to buy things at the store. First, you check the weekly newspaper ads. Find out the items that are on sale and decide if you really need these things. In other words, don’t buy anything just because it’s cheaper than usual! Second, never let “New and Improved!” or “All Natural” on the front of a package influence you. Instead, read the list of contents on the back. Third,compare prices: that is, you should examine the prices of both different brands(品牌)and different sizes of the same brand.

Another suggestion for shoppers is to buy ordinary items instead of famous brands. Ordinary items in supermarkets come in plain packages. These products are cheaper because producers don’t spend much money on packing or advertising. However, they are still of high quality. In the same way, in buying clothes, you can often find high quality and low prices in brands that are not famous. Shopping in discount clothing stores can help you save a lot of money. Although these stores aren’t very attractive, and they usually do not have individual dressing rooms, not only are the prices low, but you can often find the same famous brands that you find in high-priced department stores.

Wise shoppers read magazine ads and watch TV commercials(商业广告),but they do this with one advantage: knowledge of the psychology behind the ads. In other words, will-informed shoppers watch for information and check for misinformation. They ask themselves questions: Is the advertiser hiding something in small print at the bottom of the page? Is there any real information in the commercial, or is the advertiser simply showing an attractive image? With the answers to these questions, shoppers can make a wise choice.

小题1: The author gives ________ suggestions to the shoppers in the passage.

A.Three

B.Four

C.Five

D.Six小题2:We can learn from the passage that ____________________.

A.ordinary items are not so attractive because of the lower prices .

B.we can’t buy items with words like “New and Improved” or “All Natural”.

C.the advertisers are always showing misinformation in the commercial. 

D.the quality of ordinary items can be as good as that of famous brands.小题3:The author’s main purpose of writing the passage is to advise shoppers _________________.

A.to buy ordinary items instead of famous brands

B.how to buy ordinary things in supermarkets

C.how to make a proper decision while shopping

D.not to believe advertisements or commercials

填空题

甲醇是一种可再生能源,具有开发和应用的广阔前景,工业上一般可采用如下反应来合成甲醇:CO(g)+2H2(g)⇌CH3OH(g).

(1)分析该反应并回答下列问题:

①平衡常数表达式为K=______.

②下列各项中,不能够说明该反应已达到平衡的是______(填序号).

A、恒温、恒容条件下,容器内的压强不发生变化

B、一定条件下,CH3OH分解的速率和CH3OH生成的速率相等

C、一定条件下,CO、H2和CH3OH的浓度保持不变

D、一定条件下,单位时间内消耗2mol CO,同时生成1mol CH3OH

(2)如图1是该反应在不同温度下CO的转化率随时间变化的曲线.

①该反应的焓变△H______0(填“>”、“<”或“=”).

②T1和T2温度下的平衡常数大小关系是K1______K2(填“>”、“<”或“=”).

③若容器容积不变,下列措施可增加甲醇产率的是______.

A、升高温度

B、将CH3OH(g)从体系中分离

C、使用合适的催化剂

D、充入He,使体系总压强增大

(3)2009年10月,中国科学院长春应用化学研究所在甲醇燃料电池技术方面获得新突破,组装出了自呼吸电池及主动式电堆.甲醇燃料电池的工作原理如图2所示.

①该电池工作时,b口通入的物质为______,c口通入的物质为______.

②该电池正极的电极反应式为:______.

③工作一段时间后,当6.4g甲醇完全反应生成CO2时,有______NA个电子转移.