For the last few decades，women have been breaking barriers in professions. But a new study shows that there is a hidden barrier girls are meeting with.

"Girls are facing prejudice（偏见）from boys，from some parents，and even from each other. We have made a lot of progress in gender（性别）equality but we still have a long way to go，"said Richard Weissbourd，who conducted this study. The prejudice could hold girls back from succeeding.

The study shows only 8%of girls prefer female political leaders. Many tend to believe males have always led，so they have a preference for males' leading，which becomes one of their habits. What's more surprising is that even some mothers appear to be prejudiced，supporting school councils more led by men. The girls say that they feel threatened by boys' successes in school.

Rachel Simmons says these findings are amazing，but she's not really surprised by them. "Even today we've given girls every opportunity but our attitudes still have to change，"Simmons said. "We're still giving girls messages to look at each other as threats. Girls are not looking at each other for support，and they're also feeling so insecure about how they look."

Simmons offers ways to parents to help break these patterns of gender prejudice：

Research shows that chores（日常琐事）can be given to kids in really gendered ways. Change it at home. That's a big thing parents can do. Let boys do some care-giving because attitudes start very early and parents can help kids change them very early in the home. Another thing is to change the way we talk to our kids. If you have an outspoken girl，do you call her a bossy-boots，or do you say" I'm so glad you spoke up"？

We all have our own prejudice. I have a 3-year-old daughter and when she doesn't want to wear a dress, I get a little upset about it. Again, every parent has to look at their own prejudice. What toys are we buying for our kids? Are we buying girls the make-up kits and boys the science kits?

   In our modern world, when something wears out, we throw it away and buy a new one. The ___ is that countries around the world have growing mountains of ___ because people are throwing out more rubbish than ever before.

How did we ___ a throwaway society? First of all, it is now easier to ___ an object than to spend time and money to repair it. ___ modern manufacturing(制造业)and technology, companies are able to produce products quickly and inexpensively. Products are plentiful and ___.

Another cause is our ___of disposable(一次性的)products. As ___ people, we are always looking for ___ to save time and make our lives easier. Companies ____ thousands of different kinds of disposable products:paper plates, plastic cups, and cameras, to name a few.

Our appetite for new products also ____ to the problem. We are ____ buying new things. Advertisements persuade us that ____ is better and that we will be happier with the latest products. The result is that we ____ useful possessions to make room for new ones.

All around the world, we can see the ____ of this throwaway lifestyle. Mountains of rubbish just keep getting bigger. To ____ the amount of rubbish and to protect the ____, more governments are requiring people to recycle materials. ____, this is not enough to solve(解决)our problem.

Maybe there is another way out. We need to repair our possessions ____ throwing them away. We also need to rethink our attitudes about ____. Repairing our possessions and changing our spending habits may be the best way to reduce the amount of rubbish and take care of our environment.

   Common Sense Media，a group that helps children，parents and teachers better understand media and technology，did a study. It paid attention to all kinds of media-related activities，from old methods like reading and listening to the radio，to new favorites like using social media and video chatting. More than 2，600 kids were surveyed. Here are some truths and myths（错误观念）the study found：

Truth 1：Some teens spend too much time looking at screens.

One in five teens spends more than six hours on screens each day，and 18%of teens are looking at their screens for more than 10 hours a day. Often they watch television on one while chatting with friends on another.

Myth 1：This is the end of reading.

The average（平均的）time young people spend reading，either in print or on a screen，is only 30 minutes a day. However，kids who received the survey say reading is one of their favorite activities.

Truth 2：Boys prefer video games while girls prefer social media.

Among teen boys，71% enjoy playing video games，twice as many as teen girls. And while more than 25%of teen boys list playing video games as their favorite media activity，only 2%of teen girls do.

What's more，teen girls spend about 40 minutes more each day on social media than boys do.

Myth 2：TV and music have been muscled out（强行逐出）.

For teens，TV is still the top media activity. They enjoy it most and watch it every day. In fact，47%of teens have TV sets in their bedrooms. For teens，while 57%have TV sets in their rooms，music is the main form of amusement. However，only about a third listen to music on the radio. Most teens listen to it on their smartphones.

Note: You are a teen if you are between 13 and 19 years old，while a tween is a child between the ages of 10 and 12.

In recent years,American teens 【小题1】（earn） less than stellar（优秀的）scores on the national exam. A new analysis from the Center for American Progress argues for one simple step 【小题2】（help）raise these scores:Start school later in the day.

【小题3】（delay）start time by an hour across the country could improve students math scores up to eight 【小题4】（point）, the analysis says. That's almost one grade level of learning. The idea is that giving sleep-lacking teens more time to sleep 【小题5】 they hit the books will help them learn better.

In the previous study conducted in 2012 , middle school students 【小题6】 switched schedules to start school an hour later saw their test scores increase. And among them the low-performing students saw the 【小题7】（big）increase.

The Center for American Progress considered what would happen if those results 【小题8】（repeat） around the country.

“What we found is the impact 【小题9】 student achievement would be quite large,” Ulrich Boster, a senior fellow at the center, told The Huffington Post. “Starting school later could 【小题10】（significant）improve students' outcomes. ”

Advertisements are forcing their way into people’s lives. People 【小题1】 advertisements in their daily life because they are consumers. The advertisers are usually manufacturers, retailers and salesmen. Their products need to be 【小题2】 to bring themselves to the 【小题3】 of the customers. Thus nearly every product is advertised 【小题4】 To a large extent, good advertising leads to success 【小题5】 bad advertising means 【小题6】.

There are many ways to advertise and ads come in 【小题7】 forms. Newspapers carry advertisements. Some products are publicized (宣传) on TV and radio 【小题8】 bring them into the notice of a wide audience. Billboards also carry advertising. Advertising is a big industry now. 【小题9】 , advertising is not always truthful, so millions of people who have bought advertised products feel 【小题10】 with them.