第三中学八年级英语上册Unit3Lesson17PresentsfromCanada教案（

Lesson17 Presents from Canada

Knowledge Teaching aims By the end of the lesson, the students will be able to: 1. Read, understand and use the new words and phrases e.g. best wishes to…;on the top of; All ready；have no luck 2. tape ;post; yet; address; tape; stamp 1. Can use the key words and phrases 2. Can talk about their birthday cards By making a card for your friends or parents to express your love to them. Emotion Teaching difficult points To use the new phrases and to talk about birthday cards. and important points PPT, Teaching tools Teacher’s activities Step1: Lead-in and warm up Ask the Ss to answer the questions. 1 Have you ever send a birthday card? 2 What do people usually write in birthday cards? Step2: New Concept: 1. Ask students to listen the passage and answer the questions: ①What presents did Li Ming get on his birthday? ②How old is Li Ming? 2. ask students to read the new words, and do some exercises 3. Listen and answer : What does Danny write in his card? Where do they go to mail the box? 4. Read the passage and answer 5 questions. Q1:What are Jenny and Danny making for Li Ming? Q2: What is Brain doing here? Q3: What do they write on the box ? Q4: What do they forget when they want to mail the box? 5.Read it again and find out the key phrases and sentences. 6.Practice using the useful phrases and sentences,and do the exercise . Students ’activities One or two students answer the questions Aims Motivate the Ss and lead in the new concept. Ability The Ss listen to the tape and answer the questions. Students read the new words,and do some exercises The ss listen and answer the questions. The Ss read the e-mail individually and then discuss the answers with partner. The Ss read it for the second time and get the meaning of the sentences. The Ss read the dialogue and fill in the blanks. Step 4: Practice The Ss try to discuss 1. It’s the Ss turn to Discuss what other blessings do you know?. Ask some pairs to show their discussion. The Ss write the card Get to know more about the content and key information about the lesson. Students can master the knowledge through learning, studying. Students can get more and more practice by doing. To give ss time to prac- tice their speaking and 1 2.pair work:ask students to choose one of the cards to sb to make(give ss three kinds of cards) Step3: task reading Read one passage and finish the exercises writing abilities. The Ss read the passage To practice the individually and then ss’ability of do the exercises using languages. Step5: Summary To love is to give, not only receive. It’s never too late to say I love you. 1. Better your birthday card and show it to your family members or your friends. 2. find more blessings by searching the internet Home-work Emotion promotion. Lesson17 Presents from Canada! Words: Phrases: Board Design yet best wishes to… post on the top of top All ready … 2

．下列温度最接近23 ℃的是．人体的正常体温．北方冬季的平均气温．让人感觉温暖、舒适的房间温度．冰水混合物的温度．当温度发生变化时，物质的状态通常会发生变化。下列现象中物态变化判断正确的是．初秋的早晨，草叶上出现的晶莹剔透的露珠属于固态变为液态现象．晒在太阳下的湿衣服变干是气态变为液态现象．擦在皮肤上的酒精很快变干是液态变为气态现象．初冬树上的霜是液态变为固态现象．下面是四位同学用温度计测水温的实验操作过程，其中正确的是)4．在测量水的温度时，甲、乙、丙三位同学按如图所示方法读数，正确的是__乙__，水的温度是__42__℃，温度计的工作原理是利用液体的__热胀冷缩__。．摄氏温度规定，在标准大气压下，沸水的温度为A.120℃B.100℃C.90℃D.80℃6.下列温度值最接近实际的是．健康成年人的体温是39 ℃．让人感觉温暖而舒适的室内温度是25．洗澡时淋浴的适宜水温是60 ℃第一节物态变化与温度．在一个标准大气压下盐水的凝固点是0 ℃．下面分别表示几位同学在练习用温度计测液体的温度实验中的做法，正确的是)8．如图所示的温度计，关于它的说法正确的是．该温度计是根据固体热胀冷缩的原理制成的．在使用该温度计测量物体温度时，可以离开被测物体读数．该温度计的量程是20℃～100℃．该温度计此时的示数约为21℃9.如图所示是实验室常用温度计，关于它的说法正确的是．该温度计的示数为39 ℃．该温度计的分度值是0.1 ℃．常用温度计是根据固体热胀冷缩的原理制成的．在使用该温度计测量物体温度时，可以离开被测物体读数10．物质通常有三种状态：__固态、液__态和__气__态。在个标准大气压下5 ℃的酒精、氢气、铁三种物质中，有固定的体积和形状的是__铁__，既没有固定的体积又没有固定的形状的是__氢气__。11．把①糖、②醋、③白雾、④碗、⑤勺子、⑥味精、⑦水蒸气、⑧二氧化碳、⑨干冰按物质的状态进行分类：属于气态的是__⑦⑧__；属于液态的是__②③__；属于固态的是__①④⑤⑥⑨__。均填序号)12．气象学里的平均气温是一日当中的时、时、14时、20时这四个时刻气温的平均值，若某地某日这四个时刻的气温如图所示，则此地的最高气温是__5 ℃__，最低气温是－2 ℃__，一天的温差为_7 ℃__，平均气温是__1.25 ℃。13．在寒冷的冬天，河面上结了一层厚厚的冰，若冰面上方气温是－10℃，那么，下列说法中正确的是．冰的上表面为－10℃，下表面是℃．整个冰层的温度都是－10℃．整个冰层的温度都是℃－－．冰层下表面的温度是－10℃14.科学家发明了一种世界上最小的温度计碳纳米管温度计。研究人员在长约10米，直径10米的碳纳米管中充入液态的金属镓，当温度升高时，管中的金属镓会膨胀，通过电子显微镜就可读出温度值。其测量范围为18 ℃～490 ℃，且精确度高，可用于检查电子线路是否异常毛细血管的温度等许多方面。根据以上信息，你认为下列推测错误的是)A．碳纳米管的体积在18 ℃～490 ℃之间随温度变化很小，可忽略不计．金属镓的熔点很低，沸点很高．金属镓的体积在18℃～490℃之间随温度变化很小，可忽略不计．金属镓的体积在18℃～490℃之间随温度变化比较均匀15如图所示，甲是体温计，乙是实验室用温度计，它们都是利用液体__热胀冷缩__的性质制成的。可用来测沸水温度的是__乙__；没有甩过的体温计的读数是38℃，用两支这样的体温计给两个病人测体温，如果病人的体温分别是37.℃和38.6℃，则这两支体温计的读数将分别是__38__℃和__38.6__℃。16．如图所示是小明同学设计的一个气体温度计的示意图。瓶中装的是气体，瓶塞不漏气，弯管中间有一段液柱。(1)这个温度计是根据__气体__的热胀冷缩 …… 此处隐藏：10727字，全部文档内容请下载后查看。喜欢就下载吧 ……