The invention of spaceships makes ________ hu...

The invention of spaceships makes ________ human beings to travel to the moon.

高三英语单项填空简单题查看答案及解析

Stephen Hawking has expressed his opinion   ?___ humans might one day be able to make spaceships capable of such speeds that time on board would slow down．

A．that                        B．whom                   C．which                    D．what

高三英语单项填空简单题查看答案及解析

It is not always easy for the public to see _____ use a new invention can be of to human life.

高三英语单项填空中等难度题查看答案及解析

It is not always easy for the public to see ________ use a new invention can be of to human life.

A.whose B.what C.which D.that

高三英语单项填空中等难度题查看答案及解析

It is amusing that yogurt, which was invented to make milk last longer before the days of refrigeration, now makes grocery shopping last longer. Full-fat, or nonfat? Greek, or regular? 1.

A key recommendation when it comes to fat is to choose low-fat or fat-free yogurt. That's because dairy fat is mostly saturated (饱和的), the type linked with increased risk of heart disease. Besides, full-fat dairy has more calories than nonfat.

This view, however, has been challenged by a few recent studies. Researchers think that full-fat dairy might offer some as-yet-unknown health benefits. It might also help with weight management because the fat in it makes it more satisfying, helping keep our appetite in check.

2. Until there are further findings, it might be wiser to choose low-fat or fat-free yogurt and add healthy fat by topping it with nuts.

3. Many of them also have a hard time deciding whether to buy Greek yogurt or regular yogurt. Greek yogurt, which was rare about a decade ago, dominates the store shelves with dozens of flavors today. It has become popular partly because it features a thick, creamy texture (口感) and contains more protein and less sugar than regular yogurt.

Greek yogurt has these qualities because of its unique liquid-removing process. Unfortunately, lots of nutrients, including calcium (钙), are sometimes drained, too. Therefore, thickened yogurt and regular yogurt offer different nutritional benefits. 4.

Finally, it is worth mentioning that it's the added sugar, not the naturally- occurring sugar (which is removed in Greek yogurt), that should be the cause of our concern. Fruit-flavored yogurts that appear to be healthy may have little actual fruit and plenty of added sugar instead. 5.

A.Consumers, however. are not confused only about fat.

B.Mixing them up and enjoying both might be a good idea.

C.With so many conflicting headlines about fat these days, it's no wonder people are confused when buying dairy products.

D.Our best bet might be to buy plain yogurt and sweeten it ourselves using fresh fruit.

E.There are so many choices that we often find it hard to decide which yogurt to buy.

F.They're naturally ''packaged'' with so many important nutrients that it would be misguided to avoid them.

G.Yet more research needs to be done for us to fully understand dairy fat’s health impact .

高三英语七选五中等难度题查看答案及解析

Ever since the beginning of human civilization, we are trying to reduce manual efforts by making simple to extremely complex machines. The next step in the same process is robotics and automation. Robotics and automation is a field with abundant potential. It expands its scope from household applications to solving mysteries of the Universe to curing untreatable medical conditions.

Up until the beginning of 2020, robots of any kind are made up of nor-living materials. Recently scientists from the University of Vermont & Tufts University introduced Xenobots, which have opened a whole new Universe for this field. Xenobots are the world’s first living and self-healing microbots. These robots are designed with the help of computer-generated- evolutionary algorithm(算法). The living cells used for its creation are skin, heart and stem cell from the African frog embryos(胚胎).

These microbots are very basic in nature, made up entirely from the organic substance. They can move forward, turn around, spin in circles and flip over. They are smaller than a millimetre and can travel inside the human body. Just imagine the possibilities we will have, once scientist is able to teach Xenobots to do the desired task. One day they even might be able to fight cancer cells. They will be able to clear microplastics in the oceans and lots more.

But if these bots are a life form, why are we calling them robots? This is because scientists are designing them to move or work according to their wills. A certain arrangement for skin and heart cells in an Xenobot will make it move in a straight line, while a different arrangement of the same cells will be required to move them in circular motions.

Xenobots are positively a great step. Scientists are also calling them a brand new life form on the planet. The future is unseen but is undoubtedly full of countless possibilities.

1.Which of the following is the potential of the robotics?

A.Making complex machines. B.Reducing manual efforts.

C.Expanding our scopes. D.Clearing space mysteries.

2.Where do Xenobots differ from the other previous robots?

A.In nature. B.In size. C.In movement. D.In materials.

3.What are Xenobots able to do already now?

A.Travel inside the human body. B.Create new life.

C.Fight cancer cells. D.Clear microplastics in the oceans.

4.What is the author’s attitude towards the future of Xenobots?

A.Doubtful. B.Positive. C.Ambiguous. D.Disapproving.

高三英语阅读理解中等难度题查看答案及解析

The Internet, as we know, is probably one of the greatest inventions of human history. Never before has the access to the collection of the world’s knowledge ever been more available. 1. Some people look to make use of the information you are providing to the Internet. Everything you do online leaves a small footprint.

There are a couple of steps you can take to make your adventures online a little safer and more secure. Let’s take a look at them.

Cover your tracks.

Whenever you visit a website, a small file is marked in your browser(浏览器), which is called a “cookie”. 2. This enables the webserver to know if you have been there before and it can tailor the presentation to your personal tastes. They are also how Facebook knows to serve you ads based on stuff you looked at on Amazon.

So what’s the harm in the cookie? Well, hackers can use the information stored in your cookies to edit a browsing history or with less secure cookies, take your passwords for some sites. If you want to protect yourself from your information being available to sites then you can turn off the generation of cookies in your browser. 3.

4.

The major browsers, Chrome, Internet Explorer, Firefox, and Safari are all built to be secure from snooping(窥探), but the people who write the code for the browsers are human and they make mistakes.　　 5. These are usually addressed very quickly, but it is important that you make sure your browser is up to date. Just like your operating system, new security patches are being applied all the time, you need to make sure you have them. Turning on automatic updates is something I highly recommend.

A.Use the latest browsers.

B.Change browsers frequently.

C.This will help protect you online.

D.That’s how the cookie works on our computer.

E.This great invention and resource is not without its dangers.

F.It is common for a security problem to pop up with a browser.

G.These cookies store information about who you are and what you looked at.

高三英语七选五中等难度题查看答案及解析

___ the invention of the steam engine, the industrial revolution played a vital role in human history．

A．Originating in                      B．Originated in

C．To originate in                      D．Being originated in

高三英语单项填空中等难度题查看答案及解析

Humans’ invention of zero was vital for modern mathematics and science, but we’re not the only species to consider “nothing” a number. Parrots and monkeys understand the concept of zero, and now bees have joined the club, too.

Honey bees are known to have some numerical skills such as the ability to count to four, which may come in handy when keeping track of landmarks in their environment. To see whether these abilities extended to understanding zero, researchers trained 10 bees to identify the smaller of two numbers. Across a series of trials, they showed the insects two different pictures displaying a few black shapes on a white background. If the bees flew to the picture with the smaller number of shapes, they were given delicious sugar water, but if they flew toward the larger number, they were punished with bitter-tasting food.

Once the bees had learned to consistently make the correct choice, the researchers gave them a new choice: a white background containing no shapes at all. Even though the bees had never seen an empty picture before, 64% of the time they chose it rather than a picture containing two or three shapes, the authors report today in Science. This suggests that the insects understood that “zero” is less than two or three. And they weren’t just going for the empty picture because it was new and interesting. Another group of bees trained to always choose the larger number tended to pick the nonzero image in this test.

In further experiments, the researchers showed that bees’ understanding of zero was even more complex: for example, they were able to distinguish between one and zero-a challenge even for some other members of the zero club. Advanced numerical abilities like this could give animals an evolutionary advantage, helping them keep track of predators（捕食者）and food sources. And if an insect can display such a thorough grasp of the number zero, write the researchers, then this ability may be more common in the animal kingdom than we think.

1.According to the trials, the researchers have found that bees ________.

A. have the same intelligence as parrots and monkeys

B. can count many numbers after being trained

C. can identify the smaller number quickly

D. understand the concept of zero

2.The researchers trained another group of bees to ________ .

A. confirm the bees are able to identify the smaller number

B. find the big difference between the two groups of bees

C. prove the bees are interested in new things

D. show the bees can be distinguished easily

3.What do the researchers suggest in further experiments?

A. Bees should be trained more.

B. Numerical abilities could help predators find bees.

C. Insects are better at understanding zero than animals.

D. Animals may display a thorough grasp of the number zero.

4.What is the best the title for the text?

A. New Findings About Bees’ Concept of Zero

B. Experients on Bees’ Numerical Skills

C. Complex Trials About the Zero Club

D. A Science Report of the Species of Bees

高三英语阅读理解困难题查看答案及解析

One of the primary problems of being a human being is: Try as you might to come across in a certain way to others, people often perceive (感知、理解)you in an altogether different way.

One person may think, for example, that by offering help to a colleague, she is coming across as generous. But her colleague may interpret her offer as a lack of faith in his abilities. Just as he misunderstands her, she misunderstands him: She offered him help because she thought he was overworked and stressed. He has, after all, been showing up early to work and going home late every day. But that's not why he's keeping strange hours; he just works best when the office is less crowded.

These kinds of misunderstandings lead to conflict and resentment (怨恨)not just at work, but at home too. How many fights between couples have started with one person misinterpreting what another says and does? He stares at his plate at dinner while she's telling a story and she assumes he doesn't care about what she's saying, when really he is admiring the beautiful meal she made.

Most of the time, Halvorson says, people don't realize they are not coming across the way they think they are. “If I ask you," Halvorson told me, "about how you see yourself—what traits (特点)you would say describe you—and I ask someone who knows you well to list your traits, there's a big gap between how other people see us and how we see ourselves.”

This gap arises from some quirks (习惯)of human psychology. Most people suffer from what psychologists call "the transparency illusion"—the belief that what they feel, desire, and intend is crystal clear to others, even though they have done very little to communicate clearly what is going on inside their minds.

Because the perceived assume they are transparent, they might not spend the time or effort to be as clear and forthcoming about their intentions or emotional states as they could be, giving the perceiver very little information with which to make an accurate judgment. The perceiver, meanwhile, is dealing with two powerful psychological forces that are warping (歪曲)his ability to read others accurately.

Chances are that you "I'm kind of hurt by what you just said” face probably looks an awful lot like your "I'm not at all hurt by what you just said" face. And the majority of times that you've said to yourself "I made my intentions clear," or “He knows what I meant," you didn't and he doesn't.

高三英语任务型阅读中等难度题查看答案及解析