【正文】 where she is, she may be in Wuhan. 我不知道她在哪兒，可能在武漢。t leave here until five o39。t hear it. 唉，肯定在睡覺，所以沒有聽見。t hear the phone. I must have been asleep. 我剛才沒有聽到電話 ， 我想必是睡著了。 比較 ： He must be staying there. 他現(xiàn)在肯定在那里。 5 must表示推測 1） must用在肯定句中表示較有把握的推測 ， 意為 一 定 。例如 ： You don39。例如 ： He had to look after his sister yesterday. 他昨晚只得照顧他姐姐。例如 ： My brother was very ill, so I had to call the doctor in the middle of the night. 弟弟病得很厲害，我只得半夜里把醫(yī)生請來。此句意可從后半句推出。 2） 成語 ： may/might as well， 后面接不帶 to 的不定式 ， 意為 不妨 。t be a bad man. 他不大可能是壞人。例如 ： Could I have the television on? 我能看電視嗎 ？ Yes, you can. / No, you can39。 c. 表示過去某時刻動作時。be able to可以用于各種時態(tài)。 2） 情態(tài)動詞除 ought 和 have 外，后面只能接不帶 to 的不定式。代詞 , 但不接反身代詞 Exercise benefit our health. Your advice benefited me a great deal. . The fresh air will benefit you. 2) vi. ―獲益 , 得益于 ‖, 后面可接 from/ by We benefit by/ from daily exercises. The plants benefited from the rain. 3) n. 益處 , 好處 (可數(shù) amp。 于是 ‖, 后面跟現(xiàn)在分詞短語 , 充當結果狀語 . 分詞短語作結果狀語一般置于句末 ， 有時前面帶有 thus, hence, therefore等副詞 ， 表示一種 ―可見的 ‖―順理成章 ‖的自然結果。 Whatever is left over is yours. You must do whatever is best for you. Whatever book you want to read will be sent to your office. She is against whatever I am fond of. b. whatever 還有 ―不管什么 ‖的意思 , = no matter what Whatever happens, we‘ll meet here tonight. 2) available adj. 可用的 ， 可獲得的 ， 有效的 ， 適宜的 sth. + be + available + to + sb. 某物對某人來說是可得的 The information is available to anybody. The ticket is available to you for 3 days. sb. + be + available + for + sth. 某人對 … 來說是合適的 He is not available for the job. Are you available for a meeting tomorrow? available: ① =can be used or obtained by (指物 )可用的或可得到的 ‖. Chinese modities available for export are varied. I‘m sorry, those overcoats are not available in your size. That was the only available room. ② = free to be seen or talked to (不太常用 ) (指人 )可會見的 , 可與之交談的 The lawyer is not available now. Paragraph Four: 1. If a substance has a higher density, say 5, 000 kg/m3, it will not float on water. say: suppose as an example or a possibility ―設想 。如 : a room to live in a home to go to 注意 : 如果前面的名詞是 place 時 , 介詞可以省略 a place to live。 4) told, ancient, farewell, sufferings Listen to part 2 again and answer the following questions: What happens to the sailors? What happens to the mariner? Why is the person telling the story? Who is the person actually? Step 3. Postlistening Reflection: What do you learn from this story? － Everything existing in the world has their own certain values, we should understand and respect them. Creation Work with partner and try to e up with a good, scary story like the one about the mariner. Step 4. Homework Think as many examples as possible to illustrate water properties. Period 3 Reading Teaching Aims and Demands: 1. To help the Ss learn some language knowledge, patterns and language items as well as science knowledge. 2. To develop the Ss‘ ability of reading prehension through reading activities. 3. To help the Ss understand why water is so important to us and what we can do to protect water. Teaching Difficult Point: 1. Understand each part of the passage. 2. To help improve Ss‘ municative skills by introducing the proper use of ―Modal verbs‖. Teaching Aids: A recorder, some slides Teaching Procedures: Step1: Lead in Ask some questions to make students get to know something about water. Step 2. Fast Reading Ss read the bold words in the passage and understand the structure of the passage. How many parts are there in the passage? Ss read and get the main ideas of each part. Part 1(para1): the properties of water。 Asia, Africa, Europe, the North America, the South America, Antarctica, Oceania Step2. Warming up Use the water, the oil and the glass to do three experiments. Learn more about water‘s properties by doing some simple experiments and learn to describe an experiment. What property of water does each of the four experiments illustrate? What causes this phenomenon? What‘s this phenomenon related to? ① Experiment 1 shows how air pressure causes a piece of thick paper to cling to an upturned glass of water. ② Experiment 2 illustrates how substances with different density behave when placed in the same container. ③ Experiment 3 is an example of how water dissolves substances and objects. ④ Experiment 4 illustrates some of the differences between salt water and fresh water. Step3. Speaking 1. Prespeaking 1) Do you agree with the saying ―Without water, life would not exist. ‖ ? 2) So not only you and I agree with this opinion, but also the United Nations hold the same view. And that‘s why we have World Water Day. Q: Is there anyone who knows when it is? － Mar. 22 3) Brief background information about World Water Day: World Day for Water is established by the United Nations General Assembly39。 It sticks together into beads or drops。 blackboard and multimedia Teaching Procedures: Step1. Leadin Ask the Ss some questions as follows T: Water is around us and inside us. We can‘t go without water. Qs: Why is water so important to living things? Can you point out some of its properties or characteristics? Suggested vocabulary: It39。 Speaking Teaching Aims and Demands: 1. To get the Ss to understand the main properties of water by connecting them with some mon phenomena and learning to explain the phenomena. 2. To enable them to be aware of the importance of water, making good use of water in a proper way and protecting water resources. Teaching Difficult Point: Talk about how to use water and protect it. Teaching Aids: Some water, some oil and a glass。 It can absorb a large amount of heat。 etc. Ask stude