新概念英語青少版 2b Unit 21

1、.Unit 21The weather forecast.Lesson 41Learn new words and expressions:forecast n. 預(yù)測，預(yù)報announcer n. 播音員，節(jié)目主持人go over to v.+ adv. participle+ prep. 轉(zhuǎn)到forecaster n. 預(yù)報員the nest few quantifier 接下來的幾個 wind n. 風(fēng) blow v. 吹 south west n. 西南 bring in v.+ adv. Particle (transitive) 帶來air n. 空氣rain n. 雨gradua

2、lly adv.(manner) (focus) 逐漸的 rise v. 上升 degrees Celsius temperature measurement攝氏度fall v. 下降 outlook n. 前景.Lesson 41forecastforecaster.Lesson 41announcerannounce .Lesson 41go over to=move across to (到那邊)be over = be at an end, be finished(結(jié)束)over the hills.Lesson 41windwindy .Lesson 41blowblow down

3、吹倒blow out 吹滅.Lesson 41south weste.g. From tomorrow, the wind will blow from the south east.N:northW:westE:eastS:south.Lesson 41bring in eg. It will bring in warm air from the Atlantic.Lesson 41aire.g. The wind will bring in wet air from Australia.Lesson 41rainrainy adj.Lesson 41gradually100.Lesson

4、41riseeg. Temperatures will rise to 12 degrees Celsius in the day.Lesson 41falleg. Night temperatures will fall to 4 degrees Celsius.Lesson 41degrees Celsius.Lesson 41outlook.Lesson 41Listen to the recording, and then answer this question:What will the weather be like next week?.Grammarwill will 引導(dǎo)的

5、一般將來時引導(dǎo)的一般將來時: :表示將來發(fā)生的動作或存在表示將來發(fā)生的動作或存在的狀態(tài)，最基本的結(jié)構(gòu)：的狀態(tài)，最基本的結(jié)構(gòu)：will + will + 動詞原形動詞原形 肯定句：肯定句：主語主語+ will + will +動詞原形動詞原形+ +（賓語）（賓語）+ +其他其他eg. Some day people will go to the moon .eg. Some day people will go to the moon .否定句：否定句：在在will will 的后面加的后面加notnot即可。即可。will not will not 可縮寫為可縮寫為 wontwonteg. T

6、hey wont use books .eg. They wont use books .Grammar一般疑問句：一般疑問句：把把will will 提到句子主語之前，結(jié)尾變問號。提到句子主語之前，結(jié)尾變問號。eg. Will students go to school in the eg. Will students go to school in the future ?future ?特殊疑問句：特殊疑問句：特殊疑問詞特殊疑問詞+will +will +主語主語+ +動詞原形動詞原形+ +其他？其他？eg. What will your dream school have ?eg. W

7、hat will your dream school have ?.Grammar句型轉(zhuǎn)換1. Nancy is going to go camping.（否定） Nancy _ going to go camping. 2. Ill go and join them.（否定） I _ go _ join them. 3. Im going to get up at 6:30 tomorrow.（一般疑問句并作出肯定回答） _ _ _ to get up at 6:30 tomorrow? _ 4. We will meet at the bus stop at 10:30.（一般疑問句并作出

8、否定回答） _ _ meet at the bus stop at 10:30? _ 5. My father and mother are going to see a play the day after tomorrow.（劃線提問） _ _ going to see a play the day after tomorrow? 6. There will be some French students at the dance.(劃線提問) _ _ _ be at the dance?.Lesson 42New words:move v. 移動 yet adv. 還沒有，尚未 last

9、 adv. 最近一次train n. 火車 .Pattern Practice1. A: When will they move house? B: Theyll probably move house in a years time.Pattern Practice2. A: Will they move house soon? B: No, they wont move house yet. A: When will they move house? B: In a years time, I think.Pattern Practice3. A: Did they move house a year ago? B: No, they didnt. A: Are they moving house now? B: No, they arent. A: Will they move house in a years time? B: Yes, they will. Well, I think they will.Pattern Practice4. A: What are they doing? B: Theyre moving house. A: When did they move house last? B: They moved house last a