Unit 4 导读 话题妙切入 教材讲解 2021-2022学年 外研版（2019）高中英语必修第一册

A friend in need is a friend indeed.—Ray患难朋友才是真朋友。——雷A true friend is one in two bodies.—Aristotle挚友如同异体同心。——亚里士多德Be slow in choosing a friend，slower in changing.—Benjamin Franklin择友宜慎，弃之更宜慎。——本杰明·富兰克林A faithful friend is the medicine of life.—William Shakespeare忠实的朋友是人生的良药。——威廉·莎士比亚True friendship is a plant of slow growth.—George Washington真正的友谊像生长缓慢的植物。——乔治·华盛顿One day，a friend said to 9­year­old Denis Waitley，“I'll take you fishing on the boat at five o'clock on Sunday morning.” Waitley was so excited that he undressed to bed，and went to bed all night dreaming of a trip to the sea.At 3 o'clock，he rose up and got well prepared.He waited in the dark.But his friend broke up and didn't show up.Waitley did not doubt or feel sorry for people's sincerity.On the contrary，he realized that this was an important moment for him to be independent.So，he spent all his money buying a single rubber lifeboat that he had been longing for for a long time.At noon，he rowed into the ocean alone.That day，he caught some fish.It was one of the most wonderful days of his life，he recalled.It's a climax in life.His friend's break of appointment educated him to do everything by himself.Life gives us a lot of opportunities to stand on our own，so don't let them pass up in vain.The value of Friendship   Friendship is both a source of pleasure and a part of good health.People who have close friends natural enjoy their company.Of equal importance are the emotional benefits they get.When something amazing happens to you，sharing the happiness of the occasion with friends doubles your joy.On the other hand，in times of trouble and tension and when our spirits are low，talking about our worries and fears with friends lightens the stress.Moreover，we may even get some good suggestions for solving our problems.From time to time，we are insensitive(漠不关心的)and behave in a way that hurts someone's feelings.Afterward，when we feel guilty and discouraged，friends can reassure us.This positive interaction is useful and much less expensive than visits to a psychologist.Adolescence and old age are the two stages in our lives when the need for friendship is crucial(关键的).In the former stage，teens are confused by uncertainty and mixed feelings.In the latter stage，older people are upset by feelings of usefulness and insignificance.In both stages，friends can make a dramatic difference.With close friends people develop courage and positive attitudes.[探索发现]1．What does talking about our worries and fears with friends do?It can make us feel less stressed.2．Why does the mention adolescence and old age together?Because we need friends most during these two stages.3．What is true friendship in your own opinion?略