试题

试题 试卷

logo

题型:阅读理解 题类:模拟题 难易度:普通

河北省保定市2021届高三下学期英语第一次模拟考试卷

阅读理解

On paper, hydrogen (H2) looks like a dream fuel. Coal, oil, and natural gas produce carbon dioxide, which warms the earth when burned, Hydrogen produces pure water. Hydrogen packs more energy into less space than a battery (but certainly less than petrol) . Also, empty tanks (燃料箱) can be refilled with hydrogen much faster than refilling empty batteries with electricity.

While in practice, things are trickier. Storing a meaningful amount of hydrogen gas requires pressing it several hundred-fold. Changing it into the liquid form is another option, but it should be cooled to-253C. Both processes require a heavy and strong tank. While a 700 bar tank is acceptable for a city bus or a truck, adapting it for use in small vehicles is very difficult because the pressure during refilling would be too great.

The solution? Powerpaste.

A German team of researchers, led by Marcus Vogt, have come up with an interesting "powerpaste", which can store hydrogen energy at atmospheric pressure, ready for release when needed. It is so named because it comes in tubes and looks like toothpaste (牙膏) , not in its traditional form of gas.

The main ingredient (原料) of the paste is magnesium hydride, a substance that reacts with water to form hydrogen. The escaped hydrogen can then be directed into a fuel cell, where it reacts with oxygen from the air to produce electric power.

Refueling is very simple, as instead of going to a filling station, drivers and riders can simply replace an empty tube with a new one and refill the water tank.

Given that powerpaste only begins to break down at temperatures of around 250℃ it remains safe even when a vehicle stands in the baking sun for hours.

However, we will have to be patient. Just because researchers have succeeded in developing a new fueling way does not mean that we can expect to see such vehicles on the road anytime soon. It will indeed be several years before this concept is turned into reality.

(1)、As a fuel, what is the advantage of hydrogen over oil?
A、Refilling empty tanks will be more convenient. B、It is less likely to worsen global warming C、More energy can be packed in the same space. D、It will produce pure water for people to drink.
(2)、What is Paragraph 2 mainly about?
A、The practical difficulties to use hydrogen as fuel in small vehicles. B、The detailed processes of adapting a strong tank in small vehicles. C、The differences in fueling between large vehicles and small ones. D、The tricks of building strong tanks in small vehicles.
(3)、The author mentions the refueling process to show that powerpaste is______________.
A、inexpensive B、powerful C、convenient D、environment-friendly
(4)、Why does the author call on the readers to be patient?
A、Powerpaste-driven vehicles sometimes move very slowly on the road. B、Practical use of powerpaste-driven vehicles will not come very soon. C、Powerpaste-driven vehicles can only work after being in the sun for hours D、It will be years before the researchers work out the concept of powerpaste.
举一反三
阅读理解

VOLUNTEER HELP WANTED, WORKING WITH NEW EVENTS TEAM

Gants Hill, London

    We are looking for a few volunteers to work with us in the creation of a new events group which is needing help to expand and may lead to part-time or full-time work. Hours are flexible, and successful candidates will be working on social media and liaising (联络) phone calls with organizations and groups. Candidates must speak excellent fluent English.

VOLUNTEER EVENTS ADMINISTRATION

Westminster, London

    We would like an enthusiastic and outgoing administration volunteer for our Events Team at our London Head Office. This opportunity would suit a well-organized person with an eye for detail and good computer skills. You will support our Events by sending thank-you letters, answering the telephone, and assisting with all aspects of event organization for 2 days a week.

LOVE MUSIC? WANT EVENTS EXPERIENCE?

Notting Hill, London

    Oxfam Notting Hill Takeover are looking for volunteers for our music festival on 19th October 2013. The festival takes place in 5 places in Notting Hill. This charity event will be showcasing over 30 bands and DJs and playing all forms of music. We need a team of volunteers to assist us on the day in order to make sure everybody has a good time. If you want to be a part of a great event to help us raise money for Oxfam then please come along to our open recruitment session (招聘会).

VOLUNTEERS WANTED!

Hillingdon, London

    Royal Voluntary Service is a national charity which delivers services through volunteers to help older people remain active and independent in their communities. We are growing our new Dementia Support Service in Hillingdon and need help from you! You will be required to have good communication skills.

阅读理解

    Most people will answer a ringing phone. Usually you don't know who is phoning or how urgent their business is, so a ringing phone is difficult to ignore. In one experiment, a researcher wrote down the numbers of several public phones in stations and airports. Then he called the numbers. Someone nearly always answered. When he asked why, people usually said, "Because it rang."

    A few years ago in New Jersey, a man with a rifle killed 13 people. Armed police surrounded his house but he refused to come out. A reporter found out the phone number of the house and called.

    The man put down his rifle(步枪) and answered the phone. "What do you want?" he said, "I'm really busy right now."

    Imagine you're at work and the phone is ringing in someone else's office. Do you answer it or not?

    In one survey on telephone use, 51% of participants told researches that they did. We can't ignore the phone and for the reason, it forces its way into our lives. It interrupts what we are doing and on top of that, the caller is often someone we don't really want to talk to. However, in the survey, 58% said they never took the phone off the hook, and 67% didn't mind if someone called during a television programme. For 44% it wasn't a problem if someone rang during a meal, while only 28% were annoyed or upset.

    If someone phoned in the middle of the night, 40% told researchers that they got nervous or frightened, while around 30% got angry.

    Of course, when someone is really annoying, you can choose to hang up on him/her. This is in fact one of the rudest things you can do on the phone, but 79% said they were prepared to do it in some cases. Only 6% told researchers they never hung up on people.

阅读理解

    A popular TV host has reportedly invested about US $740,000 in a project to research, preserve and promote the Hunan provincial dialect (方言). Chinese TV presenters are required to speak Mandarin, or Putonghua, as part of their work, but should dialects be allowed on air?

    Bcnu (China): TV and radio stations have the right to decide whether dialects or Mandarin will be used in their programs. The popularity of some dialects in some areas will not challenge the leading role of Mandarin in the whole country.

    Rick N (US): TV and radio broadcasters should take the lead in popularizing Mandarin. To require hosts to speak standard Mandarin is not to oppress (压制) dialects, but it only aims to restrict irresponsible use of language. I think it is unprofessional for some hosts particularly to imitate the pronunciation of dialects.

    Cooper (UK): Dialects are an important part of local culture and now many kids even don't know how to speak their dialects because of the main use of Mandarin around them. It would be a pity if future generations were unable to understand the local dialects. It would be a terrible break in cultural traditions.

    Steve (France): To attract viewers or make more money, some hosts casually use dialects. Demanding TV and radio programs use Mandarin is a move to limit strange and irresponsible use of language, whether it is Mandarin or other dialects. In this way, the decision is also a form of protection for dialects. Hearing standard Mandarin on TV and radio programs is also a basic right of audiences around the country.

阅读理解

Students, teachers, and local community members are strongly encouraged to register online to receive real-time information of emergency events from Columbia University.

Text message warnings will only be used in rare cases where ongoing events cause an immediate threat or have a significant influence. Possible situations include severe weather conditions, emergency campus closures, crimes in progress that may endanger the community, and major transportation interruptions.

Read instructions on how to sign up for emergency notifications (通知).

Columbia students

Columbia students can easily register for text message notifications. Simply enter Student Services Online, click on "Text Message Enrollment" and add your cellphone number. Students can register parents or family members by following the instructions for the public below.

Columbia teachers

Columbia teachers can register for text message notifications by following the step by step instructions below:

● Register with your UNI and password at my. columbia. edu.

● Select "Faculty & Staff" at the top of the page.

● Select "Contact Details".

● Click the "+" under "Phone".

● Select "Campus Alert 1".

● Enter your mobile number.

To receive emergency information on additional mobile phones, you may follow the above instructions for "Campus Alert 2" and "Campus Alert 3" for a total of three.

Community/General Public

Community/General Public interested in receiving emergency information from Columbia can sign up by clicking on the "Register" button on the registration page and entering their email and mobile number. Users will receive confirmation code (密码) on their phone and will need to confirm their account via email.

Users can choose not to use the Emergency Text Alert System at any time by texting STOP to 226787, calling 226789 or sending an email to lr27682@. cumc. columbia. edu.

 阅读理解

It should be one of the main goals in today's society to reduce plastic consumption.Though many believe recycling will solve the problem,and continue using plastic,it's actually the opposite.In 2013,254 million tonnes of trash was produced in the US alone,and only around 30% was recycled.This means the rest ended up in a landfill and will stay there for up to 1,000 years.

Now Asian countries,including Vietnam and Thailand,are looking for new ideas to avoid plastic.One of those ideas was a new,eco-friendly way to pack their goods by avoiding plastic packaging.One of Perfect Homes Chiangmai's team members noticed a creative way to reduce plastic that a supermarket called Rimping Supermarket was using.Little did he know that people all around the world would absolutely love this idea."I just entered to get a few items while we were waiting to sign some contracts with our lawyer,who was delayed.When I noticed the vegetables wrapped in banana leaves,I simply liked the idea.So I took a few pictures and posted them online," he said.

With more than 3.5 million views and over 17 thousand shares,the idea became something people can encourage more supermarkets to implement(实施).

Some have noticed that not everything on the shelves is completely plastic-free to which the supermarket responded that they are taking one step at a time,but it's not that easy.Many products come to the supermarkets pre-packaged and many companies are interested in wrapping their produce in plastic since it is the cheapest and the easiest option.

It's now up to the shoppers to show the supermarket which they prefer.If everyone opts for the banana leaf packaging,they will probably stop stocking the items in plastic.

 阅读理解

The idea of climbing Mt.Qomolangma disgusted me. The mountain came to represent the opposite of everything that I loved and respected about climbing. What had once been the final mountain climbing goal became the focus of a commercial guiding industry. Over the years, the crowds at Base Camp grew, leaving behind tons of trash. Whenever I was asked whether I'd climb Mt. Qomolangma, my answer was always the same: not interested. 

That was probably where my personal Mt. Qomolangma story would have ended, were it not for an old friend Thom Pollard and his obsession (迷恋) with one of the greatest mysteries. In 1999, he began to explore and found the remains of George Mallory, the celebrated British climber who disappeared while he was attempting to be the first to climb Mt. Qomolangma. But Mallory's partner, Sandy Irvine, and the camera he had likely carried, were not found. The mountain climbing world has been wondering whether they might have reached the top in 1924. 

Pollard's story moved me. I began to pack for the climb and expected that our advanced equipment would make it manageable, perhaps easy. I was wrong. On the highest point on the planet, I was more tired than I'd ever been in any climbing. Along the way, I continuously tipped my hat, not just to Mallory and Irvine but to anyone who has the drive to push himself or herself up this route. My search was in vain, but I began to reconsider Mt. Qomolangma.

I witnessed many climbers, who were much more than just self-centered tourists. We shared route information, weather forecasts, and family photos — all united around a common goal. 

I went to Mt. Qomolangma to seek Irvine. But in the end, I found something more difficult to get: the spirit that Irvine and Mallory shared. It was hiding in plain sight, right where it has always been: inside the brave souls who risk so much to follow in storied adventurers' footsteps up Mt. Qomolangma. 

返回首页

试题篮