1 . It’s normal for teens to want to stay connected with friends and social circle, but what about that happening in the middle of the night? The Journal of Youth Studies recently published new research showing that one in five teens from 12 to 15 regularly wake to spend all night on social media (社会媒体). Not surprisingly, the research also showed that these social night owls were three times more likely than others to feel tired at school and that girls were more likely than boys to be called to office.

The blue light produced by cell phones and computers makes the brain to stay awake, so it's easy to see why a teen might be up all night. A study in Psychological Science showed the same brain reaction: when teens saw large numbers of “likes” on their posts, they stayed awake with excitement as if they had eaten chocolates or won money. Besides not catching up on sleep and interrupting their sleep cycle, teens may never fully enter deep sleep that may be responsible for brain development and learning.

Considering about 72 percent of children from 6 to 17 sleep with some electronic media in their bedrooms, parents need to set rules sooner rather than later.

“Providing access (使用机会) to social media is a favor that children can earn and also lose,” Janie Feldman, an expert who treats sleep disorders (紊乱), reminds parents, “The bad effect is clear. So teens and parents should discuss and agree on its use, timing and access. When teenagers agree to the rules, it’s easier for parents to control how much time they use the phones or computers.”

1. What does the underlined part “night owls” in paragraph 1 refer to?

A．Girls often called to office.

B．Teens who stay up late on social media.

C．Teens who are busy with their homework at night.

D．Boys regularly waking in the middle of the night.

2. How do teens react when seeing many “likes” on their posts according to the study?

A．They are too excited to go to sleep.

B．They fall asleep easily and happily.

C．They are too excited to go to school.

D．They decide to make more good friends.

3. What suggestion does Janie Feldman give to parents?

A．Making rules about media access together with their children.

B．Getting their children to do homework through computers.

C．Encouraging their children to stay connected with online friends.

D．Stopping their children from using cell phones.

4. What is the main idea of the text?

A．Deep sleep makes a big difference to brain development.

B．Kids are trying to win back the trust of their parents.

C．Social media may have a bad effect on all kinds of people.

D．Social media may cause teens’ sleep disorders.

2 . Food serves as a form of communication in two fundamental ways. Sharing bread or other foods is a common human tradition that can promote unity and trust. Food can also have a specific meaning, and play a significant role in a family or culture's celebrations or traditions. The foods we eat—and when and how we eat them—are often unique to a particular culture or may even differ between rural (农村的) and urban areas within one country.
Sharing bread, whether during a special occasion (时刻) or at the family dinner table, is a common symbol of togetherness. Many cultures also celebrate birthdays and marriages with cakes that are cut and shared among the guests. Early forms of cake were simply a kind of bread, so this tradition hits its roots in the custom of sharing bread.
Food also plays an important role in many New Year celebrations. In the southern United States, pieces of corn bread represent blocks of gold for prosperity (兴旺) in the New Year. In Greece, people share a special cake called vasilopita. A coin is put into the cake, which signifies (预示) success in the New Year for the person who receives it.
Many cultures have ceremonies to celebrate the birth of a child, and food can play a significant role. In China, when a baby is one month old, families name and welcome their child in a celebration that includes giving red-colored eggs to guests. In many cultures, round foods such as grapes, bread, and moon cakes are eaten at welcome celebrations to represent family unity.
Nutrition is necessary for life, so it is not surprising that food is such an important part of different cultures around the world.
1. According to the passage, sharing bread______.

A．indicates a lack of food

B．can help to develop unity

C．is a custom unique to rural areas

D．has its roots in birthday celebrations

2. What does the coin in vasilopita signify for its receiver in the New Year?

A．Trust.	B．Success.
C．Health.	D．Togetherness.

3. The author explains the role of food in celebrations by______.

A．using examples	B．making comparisons
C．analyzing causes	D．describing processes

4. What is the passage mainly about?

A．The custom of sharing food.

B．The specific meaning of food.

C．The role of food in ceremonies.

D．The importance of food in culture.