【题目】 With self-driving vehicle technology rapidly advancing, many companies are turning to autonomous robots for the final leg of the delivery process, from the store or local distribution center to the customer. The latest to join the trend is e-commerce giant Amazon. Following a successful eight-month test run in Snohomish County, Washington, the company’s Scout robots have been making the rounds of Irvine, California, since August 6, 2019.

The six-wheeled Scout is about the size of a large cooler with the capacity to carry small or medium-sized packages. The battery-powered vehicle, which moves at a regular walking pace, has been programmed to avoid pedestrians, animals, and unexpected obstacles, such as garbage cans. Its powerful sensors can also detect the movement of a car backing out of a driveway.

To accelerate Scout’s development and bring it nationwide sooner, the company has created several detailed virtual maps of American suburbs and conducted trial deliveries to homes there.

Though Amazon has not shown how Scout ensures the delivery is picked up by the right person, it most likely requires the customers to apply a unique code, texted to them prior to the delivery, to unlock the store box. Also unclear is the number of deliveries Scout can complete before its battery needs to be recharged. Though the initial tests are being conducted with a human for company, the robot will be autonomous in the future. Its location, however, will be tracked at all timesif someone attempts to steal Scout, Amazon employees will be instantly sensed.

However, the eco-friendly robots are unable to climb stairs or open gates, which means that they can only reach consumers who live on the ground level. Additionally, the robots are unable to leave packages at the front door if the customers are not home. Whether these problems get resolved remains to be seen. For now, it appears that humans will still be needed to achieve the ever-growing demand for home and office deliveries.

1Which of the following descriptions about Scout is right?

A.They can be powered themselves.B.They are strong enough to carry big things.

C.They can run with their six wheels.D.They can avoid obstacles ahead.

2What about Scout is still confusing to common people?

A.How many deliveries it can do on a full charge.B.Whether it can climb stairs or open gates.

C.How it recognizes the right owner of the things.D.How long it will take to get it fully charged.

3What does the underlined phrase “prior to” in paragraph 4 mean?

A.due toB.afterC.in front ofD.before

4What is the author’s opinion about delivery robots according to the last paragraph?

A.They are not easily available.B.They have some limitations.

C.They will replace humans soon.D.They won’t be well accepted.

【题目】Directions: Read the following passage. Fill in each blank with a proper sentence given in the box. Each sentence can be used only once. Note that there are two more sentences than you need.

What Your “Age” Says About You

Imagine, for a moment, that you had no birth certificate and your age was simply based on the way you feel inside. How old would you say you are?

Like your height or shoe size, the number of years that have passed since you first entered the world is an unchangeable fact. 1

Scientists are increasingly interested in this quality. They are finding that our “subjective age” may be essential for understanding the reasons why some people appear to be energetic as they grow old — while others fade.

2 It is now well accepted that people tend to mature as they get older, becoming less extroverted ( ) and less open to new experiences. These personality changes are often considered more obvious in the people with older subjective ages.

However, those who feel younger than they really are also become more reliable and less neurotic ( ) as they gain the wisdom that comes with greater life experience. But it doesn’t come at the cost of the energy and vigor of youth. It’s not true that having a lower subjective age leaves us frozen in a state of permanent immaturity.

Feeling younger than your years also seems to come with a lower risk of depression and greater mental wellbeing as we age. 3 Most people felt about eight years younger than their actual chronological age (实际年龄). But some felt they had aged — and the consequences were serious. Feeling between 8 and 13 years older than your actual age resulted in an 18-25% greater risk of death over the study periods, and greater disease burden — even when you control for other demographic ( ) factors such as education, race or marital status.

4 However old you really are, it’s worth questioning whether any of those limitations are coming from the within.

A.It also means better physical health.

B.One of the most interesting aspects of the research has explored how subjective age interacts with our personality.

C.Some studies have explored the potential physical consequences of this difference.

D.These findings can give us all a view of the way our own brains and bodies endure the passing of time.

E.But everyday experience suggests that people often don’t experience ageing the same way.

F.Many researchers are now trying to study how this knowledge might help us live longer.

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