The steady increase in women having babies later in life is undeniable. First-time mothers are more likely to be 35 or older than their counterparts (对应者) from two decades ago, according to the Pew Research Center. While the number of first-time moms between ages 20 and 24 falls, the number of births to women in their 30s and 40s keeps growing. In addition, recent wide-ranging studies have found significant long-term benefits in waiting to have babies. These benefits counterbalance (抵消) some worries about being an older mother and the effects it may have on children.

    Longevity for women who wait

    A study in the journal Menopause examined older mothers' life expectancy (寿命) and found that women who had their last child after the age of 33 are more likely to live to 95. In fact, researchers reported that these women had twice the chance of living to 95 or older than those who had their last child before their 30th birthday. The news for women having babies after 40 is equally promising.

    Boosted brainpower for older mothers

    It's also possible that later pregnancies (怀孕) protect against cognitive decline. Researchers at the University of Southern California found that women have better brainpower if they have their last baby after age 35. The researchers looked at the pregnancy history of a group of 830 women ages 41 to 92. Their research provides strong evidence of a positive association between later age at last pregnancy and late-life cognition.

    Increased income over time

    There's a measurable link between the age you have your first child and income gains and losses. Women who start their families when they are older are likely to increase their earning potential.

    Educational and emotional support for children

    Older parents who are less stressed about income or job security tend to be more patient and can spend more time with their children. Parents who have more secondary education can also offer more specific stimulation to their children, which can be helpful for development. An investigation of 8- to 12-year-olds explored how specific parenting beliefs and behaviors—such as reading, constructive play and emotional support—affected child development. The research published in the Journal of Family Psychology found that parent education and income positively affect child achievement.

    Having babies later in life

    Artificial intelligence (AI) is rushing into business. Firms of all types are using AI to forecast demand, hire workers and deal with customers. The McKinsey Global Institute, a think-tank within a consultancy, forecasts that just applying AI to marketing, sales and supply chains could create economic value of $2.7trn over the next 20 years.

    Such grand forecasts fuel anxiety as well as hope. Less familiar, but just as important, is how AI will transform the workplace.

    Start with the benefits.AI ought to improve productivity. Humanyze, a people analytics software provider, combines data from its badges（工牌）with employees' calendars and e-mails to work out, say, whether office layouts favour teamwork .Slack, a workplace messaging app, helps managers assess how quickly employees accomplish tasks. Companies will see when workers are not just dozing off but also misbehaving.

    Employees will gain, too. Thanks to advance in computer vision, AI can check that workers are wearing safety equipment and that no one has been harmed on the factory floor. Some will appreciate more feedback on their work and welcome a sense of how to do better.

    Machines can help ensure that pay rises and promotions go to those who deserve them. That starts with hiring. People often have biases but algorithms（算法）, if designed correctly, can be more unprejudiced. Software can flag patterns that people might miss.

    Yet AI^'s benefits will come with many potential drawbacks. Algorithms may not be free of the biases of their programmers, which can have unintended consequences. The length of a travel may predict whether an employee will quit a job, but this focus may harm poorer applicants. Older staff might work more slowly than younger ones and could risk losing their positions if all AI looks for is productivity. And surveillance（监控）may feel Orwellian—a sensitive matter now that people have begun to question how much Facebook and other tech giants know about their private lives.

    As regulators and employers weigh the pros and cons of AI in the workplace, three principles ought to guide its spread. First, data should be anonymized where possible. Microsoft, for example, has a product that shows individuals how they manage their time in the office, but gives managers information only in aggregated（整合）form. Second, the use of AI ought to be transparent. Employees should be told what technologies are being used in their workplaces and which data are being gathered. As a matter of routine, algorithms used by firms to hire, fire and promote should be tested for bias and unintended consequences. Last, countries should let individuals request their own data, whether they are ex-workers wishing to contest a dismissal or jobseekers hoping to demonstrate their ability to prospective employers.

    The march of Al into the workplace calls for trade-offs between privacy and performance. A fairer, more productive workforce is a prize worth having, but not if it chains employees. Striking a balance will require thought, a willingness for both employers and employees to adapt and a strong dose of humanity.

    {#blank#}1{#/blank#}

    Home can be a great place for children to study. It's important to provide a workspace of their own where they can read books or just write a letter to their friends.

    Location (位置)

    {#blank#}2{#/blank#}Kitchen and dining room are not so well suited for regular study，since books and pens get in the way of the day­to­day uses of those areas. Set up a place where a child can settle in and leave papers and pens at hand without having to clear everything away each night. For a child that likes being alone，set aside a corner of his bedroom，but keep it separate from things like games，music and other hobbies not related to studying.

    Keeping Things in Order

    Parents should encourage their child to spread out，but to leave it neat and orderly when he isn't using his workspace. Ownership is very important for self­respect{#blank#}3{#/blank#}The workplace should be personal，but not another part of the playroom.

    {#blank#}4{#/blank#}

    Encourage the whole family to help build a supportive environment that children need for success in school. Give them a good example of how to deal with problems，how to manage time and get things done in the right way. {#blank#}5{#/blank#}Study will be more enjoyable and effective when supported by the whole family.

A．Attitude Is Everything

B．Bring Organization into Your Home

C．Here are several ways to choose a location.

D．Building a Good Home Learning Environment

E．Hold a can-do attitude and your child will follow your example.

F．Setting up a space in a common area of your home can be a good idea for children.

G．A child who learns to organize his space will carry organization into every corner of his life.

Help Migrant Workers

    There is nothing like going home. More so if it is for the Spring Festival family reunion. For a migrant worker it perhaps means even more. To be able to set out on a homeward journey with money from a year's toil in his pocket is the best thing he can think of. {#blank#}1{#/blank#} They had to press hard for their defaulted payments, the salaries that were failed to pay up.

    About 200 million migrant workers nationwide are something left behind by economic reforms and opening up due to their contributions in the past three decades. It is almost impossible to imagine life in these places without them. However, they still form a disadvantaged group. Their rights are violated in different forms. Among other things, unpaid salaries are the most painful of such violations that are likely to drive a migrant worker to desperate actions. {#blank#}2{#/blank#}

    {#blank#}3{#/blank#}They have taken measures to prevent employers from holding back payments to them. Yet, as the financial crisis bites deep, some small enterprises that are struck the most try to reduce their economic losses by laying off migrant workers or refusing to pay them. So it is particularly important for governments at all levels to do an even better job in helping villager-turned-workers recover their unpaid salaries before the Spring Festival.

    It is good news that quite a number of local governments have organized special taskforces to conduct inspections in those labor-intensive enterprises to make sure they have paid their migrant workers in a timely and fair manner. Construction commissions in almost all provinces have published hotlines for farmer-turned-construction workers to lodge complaints against their employers for withholding their salaries.  {#blank#}4{#/blank#} But we need to look for solutions that will work at all times. We need to put in place a mechanism that will effectively prevent employers from holding back salaries to workers.

A. Some have reportedly climbed up chimneys to jump to their death unless they get their defaulted salaries.

B. It is something every Chinese look forward to as the traditional gala draws near.

C. Unfortunately, weeks preceding the Spring Festival have turned out to be hard times for migrant workers.

D. Hopefully, these efforts will send more workers on a happy journey home for the Spring Festival with their salaries in their pockets.

E. However difficult the situations they are in, it is too cruel and unfair for employers to hold back salaries they should pay their migrant workers.

F. Objectively speaking, governments at various levels have done a great deal in helping these workers recover their defaulted salaries.

    Earth is home to around 7, 000 languages, around half of which are expected to disappear by 2100.

    Languages disappear for many reasons. Sometimes younger generations stop learning a language because parents want children to fit in.{#blank#}1{#/blank#} Native American children of the late﹣19th century were required to attend boarding schools where educators forbade them from speaking their native languages.

    The United Nations ranks endangered languages according to their risk level. For example, a "critically endangered" language is one that even grandparents don't speak often. New York's Onondaga language is an example with only 50 speakers left. An "extinct" language has no speakers. It is gone forever. Alaska's Eyak language is one example.{#blank#}2{#/blank#}

    {#blank#}3{#/blank#} In the same way, different languages contribute to cultural diversity. Saving these languages benefits our understanding of other cultures. Languages can show how a society looks at the world and what it values. A language may describe something in a way that is funny, too. In Welsh, it rains not cats and dogs, but old wives and walking sticks.

    The Endangered Language Alliance wants to save languages from disappearing.{#blank#}4{#/blank#} However, its efforts are limited. If an endangered language is going to make a real comeback, it'll probably get its start in schools. For nearly 100 years, public schools in Hawaii did not teach the Hawaiian language. Now students can keep learning in Hawaiian from elementary schools to college and beyond.

    {#blank#}5{#/blank#} At least one did. In 1881, a Jewish linguist named Eliezer Ben﹣Yehuda brought the 3,000-year-old language Hebrew back to life. Today it is one of the official languages of the country of Israel, with more than 4million speakers.

A. The last person who spoke it died in 2008.

B. Why should we save endangered languages.

C. Various animals and plants benefit our environment.

D. With just 5 speakers left, it is absolutely endangered.

E. Can a language with zero native speakers come back to life.

F. Sometimes societies force minorities to give up their language.

G. The non-profit group finds native speakers and records their stories.

Discovering the Lost City

Sixty miles south, in Cusco, Hiram Bingham gazed thoughtfully at the old Incan stone wall. He had come to this place in search of Vilcapampa, the lost city of the Inca. But right here was the most beautiful stonework he had ever seen-huge stones cut so perfectly that not even a razor blade could be slipped between them.

The Inca had no iron tools to carve them, no wheel or animals to move them. The wall had endured time and earthquakes.{#blank#}1{#/blank#}

It was a mystery.

He walked through the cobbled streets of the old capital, Cusco. The Spanish had come to this city, conquered the Inca, taken their gold, and built churches over their temples. Suddenly, he stopped. Before him was the famous Temple of the Sun. He placed his hands on the sun-warmed stones so beautifully carved, as if they had grown together.

{#blank#}2{#/blank#}Would it hold gold and riches like the Spanish had found in Cusco? More than ever he was determined to find that city.

The next day Bingham began his search. He would look for ruins-that might be the key. He and his party, accompanied by the military man Sergeant Carrasco, left for the holy valley of the Urubamba River. They came to the sleepy old village in the valley, long ago an important city.

"Are there any ruins nearby?" Bingham asked. "Do you know of the lost city of Vilcapampa?" No one knew of it. Traveling north, the adventurers came upon a remote and wild canyon. In the distance were snowcapped mountains over three miles high.{#blank#}3{#/blank#}Bingham's determination to find the lost city grew with each turn of the increasingly wild path.

Far below in the valley, Bingham's party camped on a sandy beach alongside the thundering rapids of the Urubamba River. Days had gone by. No one knew of any ruins.

{#blank#}4{#/blank#}

This time, through the interpreter, the farmer said, "Yes. There are very good ruins on top of the mountain called Machu Picchu." The farmer pointed straight up.

"Can you take us there?" Bingham asked.

...

A. Hidden in the mountains, the lost city would be built of stones like these.

B. What could he be thinking!

C. But now the adventurers aroused the curiosity of a local farmer named Arteaga.

D. How had they built them!

E. Cliffs rose thousands of feet above the roaring rapids of the Urubamba River.

F. Suddenly, the clouds drifted away and there it was.