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ENSO 监测简报（第38期中文版）2009年10月27日El Nino 事件将持续到2009/2010年冬季一、近期ENSO 演变分析1）海表温度分布特征自2009年6月赤道中东太平洋进入El Niño 状态以后，赤道中东太平洋海温持续偏暖, 各主要NINO 监测区海表温度距平指数维持在0.5℃以上，并缓慢上升（图1）。
从10月（24天）赤道太平洋海表温度距平分布特征看，赤道中东太平洋地区海表温度偏高0.5℃以上，正距平中心值超过1.5℃(图2)。
与前期相比，在赤道中太平洋海图1 NINO Z 、NINO 3.4区海表温度距平指数（℃）和南方涛动指数（SOI ）演变 （其中2009年10月SSTA 指数、SOI 指数分别为前24天资料）图2 2009年10月（24天）海表温度距平（℃）分布2）次表层海温2009年6月以来，赤道中东太平洋次表层大部为异常暖水所控制，并在赤道东太平洋地区持续抬升，有利于后期赤道中东太平洋海温继续维持偏暖状态（图3）。
进入10月以来，赤道太平洋次表层异常暖水稳定维持在中太平洋地区，表明El Niño处于发展状态，但赤道东太平洋南美沿岸地区次表层异常暖水较前期有所减弱（图略）。
图3 2009年6月（左）和2009年9月（右）赤道太平洋次表层平均海温距平（℃）深度-经度剖面3）南方涛动南方涛动指数（SOI，见图1）自El Niño事件开始后表现为上下波动特征，反映出热带太平洋大气对海洋响应并不稳定，但10月份（24天）SOI指数为-1.2，大气表现出明显的El Niño特征。
4）850hPa风场和对流活动2009年6月以来，赤道西太平洋至日界线附近区域对流活动偏强，而赤道东太平洋地区对流活动偏弱（图4）。
相应，在对流层低层850hPa,赤道西太平洋及东太平洋大部受西风异常影响，信风明显减弱。
9月中旬以来，赤道西太平洋地区西风距平再次增强并明显东传，有利于赤道中东太平洋地区后期继续维持偏暖状态（图5）。
Unit 10 It’s a nice day , isn’t it ?Teaching goals :1.描述与陌生人聊天就注意的事项，学习该聊些什么，如何将话题展开。
2.通过学习与陌生人聊天来达到了解关心别人并增进友谊。
Important and Difficult points（教学难点）:Tag questions (附加问句)Structure :It’s a nice day , isn’t it ?Yes ,it is . I really love hot weather .You’re Jenny’s friend ,aren’t you .Yes , I am .The No.15 bus stops here , doesn’t it ?Yes , it does .Functions : Make small talk第一课时Teaching of new lessonStep 1 Assign the taskIn this unit Ss learn to make small talk .On the Bb ,draw a picture of a boy and a girl waiting for bus .Include a large sign that says Bus Stop .Draw a speed bubble over each person’s head . Step 2 Warm up SB Page 76 , 1a .1.Point out the four scenes .Help Ss understand that in all the pictures two people wh o don’t know each other (strangers) are starting a conversation .2.Ask Ss to circle the pictures where they would talk with people they don’t know .Then have Ss write their own lists .SB Page 76 , 1b .1.Point out the four pictures .Then read the instructions .2.Say , You will hear three conversations .They go with three of the pictures .3.Play the recording .Have Ss write the number of each conversation in the box next to the correct picture .4.Check the answers .SB Page 76 , 1c .1.Ask Ss to look at the pictures in activity 1a .Then point out the sample conversation in activity 1c .Ask two students to read it to the class .2.Say,Now work with your partner .Make your own conversations about the people in activity 1a .Use the expression in the box .3.Ask several pairs to say one or more their conversations to the class .Step 3 Pre-task（任务前活动）SB Page 77 , 2a .1.Read the instructions and point out the sample answer .2.Play the recording .3.Check the answers.SB Page 77 , 2b .1.Read the instructions and point to the lettered list of sentences .2.Ask different students to read the lines of the conversation to the class .3.Play the recording .Ask Ss write the letter of each line of conversation in the correct place .4.Check the answers .SB Page 77 , 2c .1.Read the instructions for the activity .2.Point to the conversations in activity 2b .Ask a pair of students to read the conversations to the class .Then ask all students to practice the conversation in pairs .3.Point out the questions in the box .4.Then have Ss work in pairs .5.Ask several pairs to come to the front of the room and say their conversations to the class . Step 4 Grammar Focus1.Review the grammar box .Ask students to read the questions and answers .2.Ask Ss to give other examples of small talk that use tag questions .Help Ss find the correct Yes or No short answer to go with each question .Exercise designing for 第一课时汉译英1.天看起来要下雨了，是吗？是的，但是我忘带雨伞。
教师学科教案[ 20 – 20 学年度第__学期]任教学科：_____________任教年级：_____________任教老师：_____________xx市实验学校开放式延伸and check the facts you hear in1b.2.Play the tape for them to listen.3.Check their answers in class.Step 4: Presentation1.Practice the conversation of 1c.2.Then make conversations aboutother things in the picture above.3.Invite several pairs to act theirconversations in class.Step 5: Practice1，Say please listen and check thethings Amy’s family are givingaway and circle the things theyare keeping in 2a.2. Play the tape for them andcheck the answers in class.3. Listen again and fill in thenblanks in 2b.4. Play the tape for them andcheck the answers in class.5.More practice. Listen again andchoose the correct answers.1）. Amy wants to give away the _____.A. bookB. magazineC. bearD.hat2）. Why does the bear has specialmeaning to Amy?A. Because her father bought it for1. Look at theconversations of1c and work inpair.2. Then practiceconversationsabout them ownold things like1c.3. Share theirconversations inclass.1. Try tounderstandhow to do it.2. Listen andfinish the task.接触的现在完成时态的语法。
