1 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Friendships are very important during adolescence (青少年). Teen friendships help young people feel a sense of acceptance and belonging. They support the     1    (develop) of compassion (同情), caring, and so on. Moreover, adolescent friendships can be useful in     2    (help) teens to spend difficult times. We all know that having good friends makes us happier. Teenagers having good friendship have better mental health. Teens with more friends feel a     3    (strong) sense of belonging, which is good for them     4    (face) difficult situations. A study found that teenagers with strong teen friendships helped them reduce anxiety.

A study of 108 high school students in Australia found that friendships were     5    (especial) helpful for teens immediately (立即) after a stressful event, such as failing     6     test. Researchers from Australia’s Murdoch and Griffith universities     7    (survey) teens. They found when they were with peers rather than adults they dealt better after a stressful event. Teens who were with friends reported lower levels of sadness     8     worry. Such are the good points     9     friendships, so young people should     10    (encourage) to make more friends.

2 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Nobody can live without friends. But when you’re making friends online,     1     is hard to say whether they are really your friends. If people honestly exchange true personal information online, these friendships can be     2     (meaning). However, people tend     3     (post) only good things that make them appear happy and friendly. On the Internet, nobody exactly knows who you are. As for me, I like making friends with the people     4     enjoy doing the things we are fond of, like Jack.

Jack and I are both volunteers for a group     5     (lead) by a team of scientists to protect     6     (million) of monarch butterflies because the migration of the monarch has been called     7     endangered natural phenomenon (现象). We     8     (find) out that the monarch is able to tell the time of day since we joined the group. In a word, we share the same interest and hobbies and follow our dream together. The friendship between us is just like the brotherly love between Brownlee brothers in the 2016 World Triathlon Series in Mexico. Alistair would give his brother a hand without hesitation whenever his brother was     9     trouble. Undoubtedly, we are convinced that our friendship     10     (last) forever.

3 . Jeffrey Hall, a teacher of Communications from the University of Kansas (KU) , has used his research to define the exact amount of time necessary to make friends with someone. He's also found how long it will take to deepen a relationship. His new study found that it takes around 50 hours of time together to go from being someone's acquaintance to casual friend. It takes about 90 hours to go from being casual friends to friends, and more than 200 hours before considering someone a close friend or best friend.

But it isn't spending just any kind of time together that deepens a friendship—hours spent working together, for example, don't count as much as hours spent getting to know someone by hanging out, joking around, playing video games, and doing more playful activities. The study explains that these kinds of activities help us to form a deeper connection with someone. “We have to put that time in，” Hall said. “You can't make friends without any effort.”

The results of the study come from analysis of 355 responses to an online survey from adults who said they had moved in the last six months and were looking for new friends in their new environment. Survey participants were asked about new relationships as well as hours spent together and activities they did. They were then asked to rate their resulting relationships according to one of four stages: acquaintance, casual friend, friend and close friend.

The main conclusion that Hall came to is that making close friends takes serious effort. So if you want to have some best friends, you have to know that spending time with someone is the most important thing.

1. How long does it take to turn an acquaintance into a friend?

A．About 50 hours.

B．About 90 hours.

C．About 140 hours.

D．About 200 hours.

2. What does the underlined part “that time” in Paragraph 2 refer to?

A．Time spent working together.

B．Time spent finding new friends.

C．Time spent helping a new friend.

D．Time spent doing fun things together.

3. Which may help deepen a friendship according to the study?

A．Trying to understand your friend's feelings.

B．Enjoying quality time with your friend.

C．Treating a new friend like a close one.

D．Being generous to your friend.

4. What is the main purpose of the text?

A．To solve a relationship problem.

B．To introduce a teacher from KU.

C．To present the findings of a new study.

D．To discuss the importance of friendship.