1 . When water is cold, people will find it uncomfortable to swim. Wetsuits(潜水服)can help keep people warm.
The wetsuit doesn't have a long history. According to studies, the wetsuit only began during WWII when Italians started wearing wetsuits that were made of rubber. And it was widely believed in 1951, Hugh Bradner began working to improve the equipment.
Now there are many kinds of wetsuits. Contrary to what some may think, wetsuits do not work by keeping the diver(潜水员)dry; they are designed to let water into the suit. This thin layer of water is trapped(保存)between the diver and the suit. And it's allowed to move between the skin of the diver and the inside layer.
Wetsuits can also differ in thickness. They range from about 0. 5mm to 8mm in thickness. It's true that thicker wetsuits are more likely to affect your movement.
A.But they're much better at giving you warmth. |
B.As for the difference, wetsuits can differ in size. |
C.The history of the wetsuit is an interesting story. |
D.This led to the development of a kind of new wetsuit. |
E.Many wetsuits are very light and easy to wear and take off. |
F.As a result, the water gradually warms up to body temperature. |
G.And they can provide protection from the sun and cuts from rocks. |
2 . When I was a practice teacher in a middle school,the students in my class were always making
The evening before I would teach all by myself,I gave a piece of paper to everyone. I told them to write
I turned the cardboard case with the bottom(底部)towards the students,and told them calmly what each one had written on the paper. The students were surprised,
I told them the truth and they were
A.progress | B.troubles | C.faces | D.efforts |
A.something | B.nothing | C.all | D.them |
A.methods | B.attitudes | C.feelings | D.interest |
A.that | B.how | C.when | D.what |
A.thought | B.seen | C.written | D.heard |
A.would | B.needed | C.had to | D.might |
A.with | B.for | C.to | D.as |
A.after | B.when | C.until | D.now that |
A.put | B.left | C.had | D.gave |
A.knowing | B.believing | C.seeing | D.hearing |
A.names | B.faces | C.characters | D.handwritings |
A.frightened | B.angry | C.sad | D.amazed |
A.corner | B.bottom | C.top | D.side |
A.in | B.for | C.with | D.to |
A.it | B.that | C.them | D.those |
A.given | B.handed | C.passed | D.offered |
A.expensive | B.useful | C.another | D.smelly |
A.made | B.seen | C.found | D.looked |
A.From then on | B.However | C.Though | D.So far |
A.a lot of | B.a lot | C.partly | D.greatly |
3 . Fast walkers may live longer than dawdlers (缓慢的人)— regardless of their weight, a new study suggests.
Researchers at Leicester University analyzed data on 474, 919 people with an average age of 52 in the UK Biobank between 2006 and 2016. They found women who walked briskly had a life expectancy of 86.7 to 87.8 years old, and men who kept up the pace had a life expectancy of 85.2 to 86.8. Slow walkers hadn’t much encouraging prospects (前景): women had a life expectancy of 72.4, and men of 64.8 years old, if they were more leisurely in their movements. According to the paper, published last week, that ratio held true even if the fast walkers were severely overweight. It does not necessarily mean fast walkers will live longer. Experts say it suggests walking speed could be a simple way for doctors to judge their patients’ general health alongside other tests.
It is hardly the first study holding up walking speed as a powerful evidence that appears to improve and determine our health.
In 2011, the Journal of the American Medical Association (JAMA) published a study by Stephanie Studenski, who found the same: walking speed was a reliable predictor of life expectancy.
In 2013, US researchers found walking pace was linked to lower heart disease risk and longer life expectancy. In 2018, a study from the University of Sydney found picking up your walking pace to even an “average speed” could cut your risk of premature death by a fifth.
And Tom Yates, the physical activity professor at Leicester who's behind the latest study, has been publishing findings on this connection for years.
In 2017, he analyzed the same UK Biobank data and found walking speed appeared to affect the risk of dying from heart disease — concluding that the slowest walkers were twice as likely to suffer a heart-related death compared to quick walkers.
1. What does the underlined word “briskly” in paragraph 2 probably mean?A.Casually. | B.Quickly. | C.Actively. | D.Energetically. |
A.Most fast walkers are overweight. |
B.Fast walkers have a simple way of living. |
C.Walking speed can help doctors know about their patients’ general health. |
D.Doctors will surely have better ways to cure their patients of their illness. |
A.Walking slowly is bad for people's health. |
B.Walking speed can predict a person’s life expectancy. |
C.People won't die early by increasing their walking pace. |
D.Lower heart disease risk is determined partly by walking pace. |
A.Fast Walkers May Have a Long Life Expectancy |
B.Life Expectancy Is Determined by Exercise |
C.Researchers Try to Improve Life Expectancy |
D.The Public Doubt Researches on Walking Speed |
A.academic | B.abstract | C.appropriate | D.absolute |
A.accused | B.accustomed | C.adjusted | D.accompanied |
Good afternoon, students. We have finally made some
7 . With no end in sight to the coronavirus pandemic(新冠疫情), it looks like protective face wear is here to stay.
But who says it can’t be stylish?
Throughout the pandemic, designers have been bringing out their face masks— luxury(奢华) versions include Off-White’s popular $95 Arrow logo face mask and Burberry’s vintage check cotton design, selling for £90 ($115).
And now, Louis Vuitton is taking it a step further, making a luxury face shield(护罩) that’s designed to be “both stylish and protective”, the French fashion house said.
The “eye-catching” LV Shield changes from clear to dark in sunlight, protecting wearers from the sun. It also has golden studs with Louis Vuitton’s logo and an elastic headband(松紧带). The visor(面盔) can also be worn upward as a classic cap.
The shield has not yet been priced, but as a high-end fashion brand, it may not be cheap. Other Louis Vuitton head wear, including hats and sunglasses, sell for hundreds of dollars.
The face shield will be sold online and at select Louis Vuitton stores starting on October 30th.
In April, Louis Vuitton joined the global effort to make personal protective equipment to support health care workers on the front lines of the pandemic. The company said it had repurposed several of its workshops across France to “produce hundreds of thousands of non-medical face masks” for health care workers.
The company also said it was giving away thousands of hospital clothing to six Paris hospitals in need of protective suits.
The Centers for Disease Control and Prevention does not recommend using face shields as masks, because it is not clear what level of protection they provide.
1. What is the idea of Louis Vuitton designing the luxury face shield?A.To reduce pressure on faces. |
B.To cut the cost of face masks. |
C.To make the wearers feel protected and fashionable. |
D.To bring out a classic face mask |
A.It changes from dark to clear at night. |
B.It has golden studs with Arrow logo. |
C.It has an elastic headband. |
D.The visor can be worn downward. |
A.It is attractive. | B.It’s cheap. |
C.It is unfashionable. | D.It’s perfect. |
A.Uncaring. | B.Doubtful. | C.Thankful. | D.Supportive. |
1. How much did the top winner get as his prize?
A.75,000 dollars. | B.50,000 dollars. | C.100,000 dollars. |
A.West Hartford, Connecticut. |
B.Grand Junction, Colorado. |
C.Bloomington, Illinois. |
A.16 years old. | B.17 years old. | C.18 years old. |
A.The top winner did well in mathematics. |
B.The second place winner studied the Rain-bow Ramsey Theory. |
C.The third place winner has invented an electronic device. |
1.询问当地的天气情况以及你要的准备的东西;
2.询问当地的景点以及收费情况;
3.请Bob帮你在宾馆预定一个房间;
4.询问Bob 当地的法规以防出错。
Dear Bob,
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
A.will it be | B.it will | C.will it | D.it will be |