精英家教网 > 高中英语 > 题目详情

We can gain valuable wisdom from mistakes which ______ to prevent them from happening again.

A. should be avoided B. might be avoided

C. must have been avoided D. could have been avoided

练习册系列答案
相关习题

科目:高中英语 来源:2016届湖南衡阳县第一中学高三3月月考一模英语试卷(解析版) 题型:短文改错

短文改错

假如英语课上老师要求同桌之间交换修改作文,请你修改你同桌的以下作文。文中共有10处错误,每句中最多有两处。错误涉及单词的增加、删除或修改。

增加:在缺词处加一个漏词符号∧,并在此符号下面写出该加的词。

删除:把多余的词用斜线\划掉。

修改:在错词下面划一横线,并在该词下面写出修改后的词。

注意:

1、每处错误及其修改均仅限一词;

2、只允许修改10处,多者从第11处不计分。

As is known by all, with the improvement of people’s living standards, cars have become a popular means of transport, bring great convenience to our life. However, they have also caused some problems such as air pollution and traffic jam.

How can we solve these problems then? As far as I am concerning, riding bicycles is a good solution. For one thing, bicycles don’t need any petrol but they are energy-saving. For another, bicycles are environmentally friendly because of they won’t give off waste gas. Beside, riding bicycles is a good way for us to exercise and it is beneficial to our healthy.

As result, let’s take the responsibility to build up a low-carbon city by riding bicycles. Come on and join them.

查看答案和解析>>

科目:高中英语 来源:2016届吉林第一中学校高三质量检测六英语试卷(解析版) 题型:七选五

根据短文内容,从短文后的选项中选出能填人空白处的最佳选项。选项中有两项为多余选项。

Home on the Way

People need homes: children assume their parents' place as home; boarders call school "home" on weekdays; married couples work together to build new homes; and travelers … have no place to call "home", at least for a few nights. ____1.___? Don’t they have the right to a home? Of course they do.

Some regular travelers take their own belongings: like bed sheets, pillowcases and family photos to make them feel like home no matter where they are; some stay for long periods in the same hotel and as a result become very familiar with service and attendants; ____2. ____. Furthermore, driving a camping car during one’s travels and sleeping in the vehicle at night is just like home -- only mobile!

And how about keeping relationships while in transit? _____3.____ ; some send letters and postcards, or even photos; others may just call and say hi, just to let their friends know that they're still alive and well. People find ways to keep in touch. Making friends on the way helps travelers feel more or less at home. _____4._____.

Nowadays, fewer people are working in their local towns, so how do they develop a sense of belonging? Whenever we step out of our local boundaries, there is always another "home" waiting to be found. ____5._____, we can make the place we stay "home".

A. Hostels provide a clean safe place to stay while you are travelling the world

B. others may simply put some flowers by the hotel window to make things more homely

C. Backpackers in youth hostels may become very good friends, even closer than siblings(手足)

D. So how about people who have to travel for extended periods of time

E. No matter where you go to in the world, hotels are there, too

F. Some keep contact with their friends via internet

G. Wherever we are, with just a little bit of effort and imagination

查看答案和解析>>

科目:高中英语 来源:2016届江苏省南通市高三下学期第一次调研测试英语试卷(解析版) 题型:阅读理解

THE idea came to Ralph Liedert while he was sweating in the Californian sunshine, having been standing with his daughter for over an hour in a queue for a ride at Disneyland. What, he thought, if his T-shirt had a cooling system he could turn on, at the tap of a smart phone app, when he needed it. Luckily, Mr Liedert does have the means to make the dream reality, for he works at the VTT Technical Research Centre of Finland, as one of a team there studying the rapidly growing field of microfluidics (微流控技术).

Cooling vests already exist (used by racing drivers, motorcyclists and people who work in hot conditions). But the tubes through which the cooling water is being pumped, and the vests’ need to be connected to outside units that cool this water, make them huge and clumsy. Mr Liedert thought VTT’s microfluidics department could do things better.

As its name suggests, microfluidics is the art of building devices that handle tiny amounts of liquid. Inkjet-printer cartridges (喷墨打印机墨盒) are a familiar example. Less familiar, but also important, are “labs-on-a-chip” (芯片实验室). These are tiny analytical devices that transport fluids such as blood through channels half a millimetre or less in diameter (直径), in order to carry them into what holds analytical reagents (试剂). Sensors, then detect the resulting reactions and provide an instant analysis of a sample (样本). Designing labs-on-a-chip is the VTT microfluidics department’s day job. One of its chips, for example, can tell whether water is affected by the bacteria that cause Legionnaires’ disease.

The department’s biggest contribution to the field, though, is to have developed a way of printing microfluidic channels onto large rolls of thin, flexible plastic. It works by passing the plastic between two heated rollers, one of which contains raised outlines of the required channels. As the rollers squeeze the plastic they create a pattern of channels into one surface. A second plastic film is then melted over the top as a cover. This process might, thought Mr Liedert, be suitable for printing a microfluidic cloth that was thin enough and pleasant enough to wear as a cooling vest.

The group’s first model showed that such a material could indeed be made and used to circulate cooled water. They are also looking at ways the water being circulated through the microchannels might be cooled. They have identified two. One uses a small heat-exchanger, the details of which they are keeping secret at this stage. The other employs evaporation (蒸发). It thus works in the same way that heat from circulating blood is removed by the evaporation of sweat.

Whichever cooling system is applied, the electronics needed to power and control it would be shrunk into a small package contained on the back of the vest. This could be operated by hand or, as Mr Liedert originally envisaged in his Californian queue, by a wireless link to a smart phone. Moreover, what can cool down can also, if run in an opposite way, warm up. In Finland, where winter temperatures fall as far as -50°C, that might be the technology’s killer app.

1.Microfluidics has been used in ______.

A. racing cars B. printing industry

C. testing material D. clothing industry

2.We can learn from the passage that ______.

A. VTT is a company which mainly works on the research into microfluidics

B. the new cooling vest of VTT will be smaller and work more effectively

C. the technology of microfluidics may have a positive effect on medical science

D. heat-exchanger as well as the way of evaporation will be used to cool the wearer

3.______ plays the key role in making the new cooling vest.

A. The special cloth B. The cooling system

C. The tiny liquid D. The wireless link

4.The underlined word “envisaged” most likely means _____ .

A. imagined B. discovered C. viewed D. planned

查看答案和解析>>

科目:高中英语 来源:2016届江苏省南通市高三下学期第一次调研测试英语试卷(解析版) 题型:单项填空

—Didn’t you go fishing with your friends last Sunday?

—No. I ______ to the nursing home as usual.

A. went B. go C. have gone D. had gone

查看答案和解析>>

科目:高中英语 来源:2016届江苏省南通市高三下学期第一次调研测试英语试卷(解析版) 题型:单项填空

Faced with economic slowdown, some companies are planning to use robots to ______ human workers to reduce their labor costs.

A. compensate B. substitute

C. symbolize D. discriminate

查看答案和解析>>

科目:高中英语 来源:2015-2016学年陕西西安长安区一中高二上期末英语卷(解析版) 题型:阅读理解

Your house may have an effect on your figure. Experts say the way you design your home could play a role in whether you pack on the pounds or keep them off. You can make your environment work for you instead of against you. Here are some ways to turn your home into part of diet plan.

Open the curtains and turn up the lights. Dark environments are more likely to encourage overeating, for people are often less self-conscious(难为情)when they’ re in poorly lit places----and so more likely to eat lots of food. If your home doesn’t have enough window light, get more lamps and flood the place with brightness.

Mind the colors. Research suggests warm colors fuel our appetites. In one study, people who ate meals in a blue room consumed 33 percent less than those in a yellow or red room. Warm colors like yellow make food appear more appetizing, while cold colors make us feel less hungry. So when it’s time to repaint, go blue.

Don’ t forget the clock----or the radio. People who eat slowly tend to consume about 70 fewer calories (卡路里) per meal than those who rush through their meals. Begin keeping track of the time, and try to make dinner last at least 30 minutes. And while you’ re at it, actually sit down to eat. If you need some help slowing down, turn on relaxing music. It makes you less likely to rush through a meal.

Downsize the dishes. Big serving bowls and plates can easily make us fat. We eat about 22 percent more when using a 12-inch plate instead of a 10-inch plate. When we choose a large spoon over a smaller one ,total intake (摄入) jumps by 14 percent. And we’ ll pour about 30 percent more liquid into a short, wide glass than a tall, skinny glass.

1.The text is especially helpful for those who care about_______.

A. healthy diets B. house buying

C. their body shape D. their home comforts

2.A home environment in blue can help people_________.

A. reduce food intake B. digest food better

C. regain their appetites D. burn more calories

3.What are people advised to do at mealtimes?

A. Use smaller spoons. B. Turn down the lights.

C. Eat quickly. D. Play fast music.

4.What can be a suitable title for the text?

A. Is Your Home Environment Relaxing?

B. Is Your House Making You Fat?

C. Ways of Serving Dinner

D. Effects of Self-Consciousness

查看答案和解析>>

科目:高中英语 来源:2015-2016学年北京西城区高二上学期期末英语试卷(解析版) 题型:单项填空

In the last two years, the program ________ thousands of children who would otherwise have died.

A. is saving B. saves C. had saved D. has saved

查看答案和解析>>

科目:高中英语 来源:2016届重庆市高三上学期第二次月考英语试卷(解析版) 题型:阅读理解

Everybody hates it, but everybody does it. A recent report said that 40%of Americans hate tipping. In America alone, tipping is a $16 billion-a-year industry. Consumers acting politely ought not to pay more than they have to for a given service. Tips should not exist. So why do they? The common opinion in the past was that tips both rewarded the efforts of good service and reduced uncomfortable feelings of inequality. And also, tipping makes for closer relations. It went without saying that the better the service, the bigger the tip.

But according to a new research from Cornell University, tips no longer serve any useful function. The paper analyzes numbers they got from 2,547 groups dining at 20 different restaurants. The connection between larger tips and better service was very weak. Only a tiny part of the size of the tip had anything to do with the quality of service.

Tipping is better explained, by culture than by the money people spend. In America, the custom came into being a long time ago. It is regarded as part of the accepted cost of a service. In New York restaurants, failing to tip at least l5% could well mean dissatisfaction from the customers. Hairdressers can expect to get l5%-20%, and the man who delivers your fast food $2. In Europe, tipping is less common. In many restaurants the amount of tip is decided by a standard service charge. In many Asian countries, tipping has never really caught on at all. Only a few have really taken to tipping.

According to Michael Lynn, the Cornell papers' author, countries in which people are more social or outgoing tend to tip more. Tipping may reduce anxiety about being served by strangers. And Mr. Lynn says, “In America, where people are expressive and eager to mix up with others, tipping is about social approval. If you tip badly, people think less of you. Tipping well is a chance to show off."

1. This passage is mainly about ________.

A. different kinds of tipping in different countries

B. the relationship between tipping and custom

C. the origin and present meaning of tipping

D. most American people hate tipping

2.Which of the following best explains the underlined phrase "caught on"?

A. become popular. B. been hated.

C. been stopped. D. been permitted

3.Among the following situations, in your opinion, who is likely to tip most?

A. A Frenchman just quarreled with the barber who did his hair badly in New York.

B. An American just had a wonderful dinner in a well known restaurant in New York.

C. A Japanese businessman asked for a pizza delivery from a Pizza Hut in New York.

D. A Chinese student enjoyed his meal in a famous fast food restaurant in New York.

4.We can infer from this passage that ________.

A. tipping is no longer a good way to satisfy some customers themselves

B. tipping is especially popular in New York

C. tipping in America can make service better now

D. tipping has something to do with people's character

查看答案和解析>>

同步练习册答案