張雪

（遼寧省興城市高級中學(xué)，遼寧 興城 125100）

一、教學(xué)內(nèi)容分析

本單元的中心話題是“計(jì)算機(jī)”，內(nèi)容涉及計(jì)算機(jī)的發(fā)展歷史及應(yīng)用等，其中還談到包括計(jì)算機(jī)在內(nèi)的幾種信息技術(shù)的載體、智能計(jì)算機(jī)的發(fā)明等等。不過，整個(gè)單元多以計(jì)算機(jī)為第一人稱進(jìn)行自白，這種擬人的手法使得文章讀起來妙趣橫生，抽象的專業(yè)知識介紹起來也淺顯易懂。本主旨語篇who am i?以計(jì)算機(jī)的口吻自述其發(fā)展演變的歷史以及計(jì)算機(jī)在當(dāng)今世界各個(gè)領(lǐng)域的運(yùn)用。表達(dá)了計(jì)算機(jī)的發(fā)展變化之快以及在生活中用途之廣。

二、學(xué)情分析

計(jì)算機(jī)這一話題雖然是學(xué)生所感興趣的話題，但本單元體裁屬于科普類說明文，內(nèi)容較為抽樣，文章中有一些專業(yè)術(shù)語，對于高一學(xué)生來說有一定的難度。目前，學(xué)生的詞匯量不足以充分的理解課文，而且學(xué)生的跨文化意識不高并且背景知識匱乏，語言和信息的雙向促進(jìn)關(guān)系的能力不足。學(xué)生的課外語言活動環(huán)境不夠豐富和重視程度不夠，通常以詞匯、語法和寫作練習(xí)為主，缺乏真實(shí)的語言運(yùn)用。

三、教學(xué)目標(biāo)

（1）Language skills：

1.Use “decision making” expressions such as “i believe...in my opinion, etc.” correctly.

2.Develop their predicting and reorganizing abilities.

3.Write a composition on “my own robot”

（2）language knowledge：

1.Use their own words to share the background information of computers.

2.Find and retell the grammar structure of the present perfect passive voice.

（3）Emotions and attitudes

1.Be aware of the influence about computers and internet

2.Encourage the students to be curious about the internet,forming a right attitude to using the internet.

3.Know about the culture of computers and pursue healthy culture online.

（4）Teaching important points：

Enable students to use their own words to write a composition named “my own robot”

（5）Teaching difficult points

Have a good command of computers’ background, famous people and new usage, and develop students’ predicting and reorganizing skills.

四、教學(xué)過程

step1：Greetings and leading-in

activity1: Guessing game

Let students predict the topic by watching some attractive pictures.

step2: Pre-reading

activity2: Preparing and sharing（individual and group work）

1.Teacher or students can provide some related information about this reading part, which can include various writing styles or versions referring to the history, celebrities or applications of computers.

2.Divide students into some groups, and let them use the skimming and scan skills to organize the information, and then introduce their information to the class.

step3: while-reading

activity3: Read the passage and finish the timeline below.（Exercise on page 19）

Activity 4: Careful-reading

To read the passage again, finding the main idea of each paragraph and summarize the supporting details.

Actvity5: Change the following sentences into the present perfect passive voice.

1.My friend has bought a new personal computer.

2.The shop has repaired my computer very quickly.

3.We have not solved the problem yet.

4.The computer has given its computers away to a local school.

Activity 6: Ask-and-answer.

q1: What have you learned about computers?

q2: Think about what you would have to do if you could not use computers anymore?

step4：Conclusion and homework

1.Conclusion of the class

2.Task：“My own robot”

Write a description of your android and what it can do.You may draw a picture of it if you wish.Use your notes and the following sample passage on page24 to help you.

五、教學(xué)反思

本單元設(shè)計(jì)了若干情景與活動，旨在以學(xué)生為主體，充分調(diào)動他們的積極性，讓他們在有趣的課堂活動中有效學(xué)習(xí)。但本堂課中也出現(xiàn)了若干問題：課堂上的時(shí)間分配要更加的科學(xué)一些，不能平分時(shí)間，一些“熱身”活動應(yīng)該輕輕帶過，否則會造成課堂的時(shí)間控制不了。從課堂實(shí)踐來看，學(xué)生樂于在小組中進(jìn)行合作學(xué)習(xí)，所以任務(wù)設(shè)計(jì)更要符合學(xué)生的實(shí)際水平，難易要適中，而且設(shè)計(jì)活動時(shí)要考慮活動有教學(xué)目標(biāo)是否真正一致，避免活動流于形式?？傮w上，本設(shè)計(jì)以活動為中心，以學(xué)生為主體，將英語學(xué)習(xí)與現(xiàn)實(shí)生活緊密結(jié)合，體現(xiàn)了跨學(xué)科的外語教學(xué)。教學(xué)過程環(huán)環(huán)相扣，從難到易，從語言知識到篇章結(jié)構(gòu)，將閱讀技能的訓(xùn)練貫穿整個(gè)課堂教學(xué)。