阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词-优题课

Paul Lucas can often (see)walking around the city of San Francisco. Sometimes people are surprised to see him walking any shoes or socks, 63Lucas doesn’t mind at all. He likes to walk barefoot, and so740 other members of Dirty Sole Society, the club that Lucas started years ago. Lucas’ idea for this is to encourage others to live (free) --- free of shoes.
According to Lucas, the barefoot life has many advantages. most important is simply that it feels good. He also says that ( walk) barefoot allows you to experience the world directly by touching it with your feet. In addition, the feet do not smell as much they stay dry, making it hard for bacteria to grow. And, of course, walking barefoot keeps your feet good shape, so it’s actually (healthy) than wearing shoes

Man has been on the earth about one million years. He_(manage) to live on every part of the planet, even though some climates have made life difficult. It is thought(different) in skin color are the result of climatic__ .(adapt). For example, people with skin colors of yellow, red, and olive, generally come from areas_ they have had to adapt to other climates. Man's size also seems to(various) according to climate. People living in colder regions are generally larger than_ living in hotter ones. This difference might be explained_the fact that big people have less skin compared to weight than do small people. The less skin a person has relative to his weight, the easieris for him to keep warm. As part of the natural environment, climate greatly affects human activities. Climate has a significant0n agriculture. Climatic factors restrict the kinds of crops that can be grown. Man changes his living habits in order to adjust to climate, but climate(change) as well, though more slowly. By learning more about his climate, man will find a way to adapt to or control it and live a more comfortable life.

众所周知，健康对每个人都很重要，那么我们如何才能保持健康呢?
请根据以下内容以”How to keep healthy”为题，写一篇英语短文
1）要平衡善食，多吃一些蔬菜和水果，因为它们属于保健食品，富含维生素和纤维
2）要养成良好的生活习惯，早睡、早起，每天坚持锻炼，保正有充沛的精力去干每天的工
3）还要保持乐观的（optimistic）态度…
注意：1）要包括以上要点 2）字数要在100-120左右
首句已给出，只需接着写
How to keep healthy
As we all know, health is very important to us, but…
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Jim：Hey, Jean. How’s it going?
Jean: Oh, the same old thing, I guess. I (go) to Washington next week to meet with my publishers. And I’m looking forward to(have) a good rest during the summer vacation.
Jim: Yeah, me too. How is your book coming?
Jean: Pretty well, I think. I just have to talk about some (detail) with the publishers about last chapter of my book.
Jim: What doesmainly talk about?
Jean: Well, it just focuses a great British poet.
Jim: If you weren’t so busy with going to Washington at all, I’d love (invite) you to come and discuss the great poet Poe with my English literature class. We(study) poetry of the 19^th century for two weeks.
Jean: I’d love to, but I don’t know I have enough time when I am back. Well, if I come back (early) than expected, I’ll call you.
Jim: Great! It would be great if you can come.

When I was 8 years old, I once decided to run away from home. With my suitcase packed and some sandwiches in a bag, I started for the front door and said to Mom, “I______ (leave).”
“If you want to run away , that’s all right,” she said. “But you came into this home ____ anything and you can leave the same way.” I threw my suitcase and sandwiches on the floor heavily and started for the door again.
“Wait a minute,” Mom said. “I want your ___ back. You didn’t wear anything when you arrived.” This really angered me. I tore my clothes off—shoes, socks, underwear and all—and shouted , “Can I go now?” “Yes,” Mom answered, “but once you close that door, don ’t expect ___(come )back.”
I was so angry that I slammed (砰地关上) the door and stepped out on the front porch. ______ (sudden) I realized that I was outside, with nothing on. Then I noticed that down the street, two neighbor girls were walking toward our house. I ran to bide behind a big tree in our yard at once. After a while, I was sure the girls_______ (pass) by. I dashed to the front door and banged on it loudly.
“Who’s there?” I heard. “It’s Billy! Let me in!”
The voice behind ____ door answered, “Billy doesn’t live here anymore. He ran away from home.” _____ (glance) behind me to see if anyone else was coming, I begged, “Aw, o’mon, Mom! I’m still your son. Let me __!”
The door inched open and Mom’s smiling face appeared. “Did you change your ____ (decide) about running away?” she asked.
“What’s for supper?” I answered.