Have you ever rubbed(擦) your hands together when they get cold? Why do we do that? We do that for friction(摩擦). Friction happens when two things that aren’t very smooth rub together to make heat energy. The faster you rub two things together, the more friction (and heat) you can make. Let’s discover friction!
56.
Soap Water Your hands
57.
(1). Make sure your hands are dry.
(2). Rub your hands together until you feel the heat of your hands.
(3). Now, use soap and water to get your hands very slippery(滑的).
(4). Try to make friction happen while your hands are slippery.
(5). Please write down what has happened.
58.
Friction is an energy that happens when two things rub together. When friction happens, it makes heat! When your hands are slippery, they won’t make very much friction and your hands won’t get so hot.
59.
(1). Friction happens when you stop your fast running bike.
(2). Ancient people made fire by rubbing two pieces of wood together. Friction happened though they didn’t know it.
60.
Friction is everywhere. Have you ever noticed situations where friction is happening? If not, ask your parents to take you out in a car. If it is not too hot, touch the tires(輪胎) of the car before and after a short drive to see how much warmer they get from friction.
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A. Let’s talk!. B. Work with parents! C. What you’ll need. D. Did you know? E. Do an experiment at school. F. What to do. |
七. 選詞填空(共10小題，計(jì)10分 )
用方框中所給單詞的適當(dāng)形式填空，使短文通順、正確、連貫(每個(gè)單詞限用一次)。
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get really happy little appear when please in once dinner focus |
Today people are living a happier life than before. But problems 61 at the same time. More and more people are 62 fat and having healthy problems. Especially during the vacation 63 they are getting together with friends, there are usually some 64 , containing too much fat and sugar. Now I’d like to give you some suggestions and then you may be 65 worried about your weight during the vacation.
1. Don’t worry about your weight too much 66 the face of holiday traditions. Just keep your healthy habits and enjoy the 67 of the season.
2. Eat what you want 68 you decide it is what you really want.
3. Keep as much walking as you can.
4. Don’t 69 your thought on your weight but on the future. It’s not the holiday that makes the 70 difference in our lives. It’s what goes on the other eleven months of the year.
八. 單詞拼寫(共10小題，計(jì)10分 )(原創(chuàng))
根據(jù)下列句子及所給單詞的首字母，在答題紙上按題號(hào)寫出各單詞的完全形式(每空限填一詞)。
71. David fought with some boys yesterday, which made her mother very angry. Her voice r_______ in anger.
72. Liu Qiangdong lived a d_________ life when he was young, but with hard work, he became successful and famous in the world of online shopping.
73. The third Sunday in J______ is Father’s Day, and I’m planning to give my father a surprise.
74. It was too hot in the sun, so she turned her back t______ the sun.
75. My father often reads n______ in Qianjiang Evening Paper.
76. The problem of air pollution is b________ worse and wore, so we must pay attention to it.
77. In France, you are not supposed to eat anything with your hands e_______bread.
78. I can’t p_______ to win the first prize, but I’ll try my best. Take it easy.
79. Last year, the air p___________ in Hangzhou is very bad. Many people can’t stand it.
80. In Time is one of the most m________ shopping centers in Hangzhou.
九. 書面表達(dá) (15分)
《少年中國(guó)強(qiáng)》是央視推出的一檔大型少兒勵(lì)志節(jié)目，為當(dāng)代少年提供了展示才智情懷和夢(mèng)想的舞臺(tái)。這檔節(jié)目給我們帶來(lái)了自信的力量，傳遞著一種正能量。假如你是杭州某初中初三年級(jí)一名學(xué)生，想要報(bào)名參加這檔節(jié)目的下一期錄制，請(qǐng)根據(jù)自己認(rèn)為“強(qiáng)”的地方，給節(jié)目組寫一封自薦信。
自薦信中要求包括如下內(nèi)容：1、個(gè)人信息：名字，年齡，身份(學(xué)生);2、你的興趣、愛好、特長(zhǎng);3、報(bào)名參加節(jié)目的理由。
注意：1.內(nèi)容必須包括要求中的信息和報(bào)名參加節(jié)目的理由(至少三條);
2. 開頭已經(jīng)為你寫好，你只需接著寫;
3.詞數(shù)：80個(gè)左右。開頭部分內(nèi)容不計(jì)入總詞數(shù)。
Dear judges,
I’m writing to take part in the TV show next time. ________
，我們將會(huì)及時(shí)處理。
