When was it built?

　　What was it used for?

　　Ask students to compare with the groups sentences.

　　Ⅳ. Listening.

　　Part 1. Close books, listen to the tape and answer the questions.

　　Where did Du Hui go yesterday?

　　When were the old inventions on show invented?

　　Play the tape again and make sure students can answer the questions correctly.

　　Ⅴ. Practice

　　Ask some students to practice the dialogue.

　　Then in groups and in pairs. At last let the students act it out.

　　Ⅵ. Ask and answer

　　Part 2. Ask the students to ask and answer in pairs according to the questions in the box.

　　Ⅶ. Practice

　　Ask students to make sentences, and then change them into the Passive Voice in the past Simple Tense.

　　Ⅷ. Workbook

　　Do Exercise 1.

　　Ask the students to read and complete the dialogue alone, then check the answers with the whole class.

　　Do Exercise 2 in pairs.

　　Ⅸ. Exercises in class.

　　Complete the dialogues

　　Kate: Hello, Mary! This is Kate ________.

　　Mary: ________ Kate.

　　Kate: I ________ you yesterday, but you weren't ________.

　　Mary: Oh, ________. I went to the Museum.

　　Kate: Is it interesting?

　　Mary: Yes, I saw many things ________ show. They were all ________ hundreds of years ________.

　　Kate: Are there any new ________?

　　Mary: Yes. Why not go there and have ________?

　　Kate: That's a good idea.

　　Ⅹ. Homework

　　Do Exercise 3 in the exercise books.

　　Make up a new dialogue.
探究活动

解读标志语

　　设计一次家庭作业，让学生去商店，旅店，街道上收集各种有关英文标识语，回到班级后进行交流以拓展知识面。在总结时，出示各种标志图或列出数个标志语，让学生用英语来解释每个标志的意思，以及用于何种场所、何种时间等。

  　　EXIT 出口  ENIRANCE入口  CLOSED停止  OPEN营业 PULL拉  PUSH推  UPSTAIRS请上楼 DANGER危险 FULL客满 POISON有毒  OCCUPIED（厕所）有人 

  　　NO SMOKING请勿吸烟   NO SPITTING不准随地吐痰　

  　　NO PARKING HERE 此禁止停车  NO LITTERING不准乱扔果皮纸屑

  　　NO DUMPING不准倒垃圾  NO VISITORS 游人止步

  　　NO PHOTOS 不准拍照     NO FISHING禁止垂钓

  　　NO SWIMMING禁水游泳   NO HANDLE 请勿用手

查找和整理资料

　　鼓励学生查找一些与恐龙有关的背景资料，然后进行整理，之后在小组之间进行交流。

Dinosaur Era (时代)

　　We know that prehistoric (史前的) animals once lived on Earth because of their fossils. Fossils are the remains of animals and plants（1） that lived millions of years ago. The largest known dinosaur is the largest land animal that has ever been found. Its name is Seismosaurus（地震龙）, and from its head to the end of its tail (2), it measured 120-150 feet. Seismosaurus was a plant eater and would not have been dangerous –unless it stepped on （3）you, for it weighed about 10 tons. Dinosaurs were reptiles (爬行动物), but very different from today’s reptiles. Many were giant-sized, and armed with ferocious（凶恶的） teeth and savage horns. Above them, great pterosaurs（翼龙） swooped（4）through the air on leathery（5）wings. The dinosaurs and pterosaurs ruled the Earth from about 200 million years ago until they died out about 65 million years ago. Many dinosaurs, including the biggest of all, Diplodocus（梁龙）, lived only plants. Others were flesh eaters and hunted the plant-eating dinosaurs.

　　注释：

　　（1）the remains of animals and plants  动植物死后遗留下来的东西

　　（2）from its head to the end of its tail   从头到尾

　　（3）step on… 踩……

　　（4）swoop/swu:p/ v.飞扑，猛扑

　　（5）leathery adj. 坚韧的

博物馆观后感

　　为培养学生爱国主义情怀，激励他们振奋、向上，并为作为中国人而自豪。组织学生参观故宫博物院或其他博物馆，选择有代表性的展品，向他们展示古中国的先进科技和古中国人的高超技艺，使他们理解古中国在世界的地位。令他们在参观中受到教育和启迪，增强爱国主义的思想感情，为中华民族的振兴而努力学习、勤奋工作。参观后写一篇日记作为观后感。

　　[注意]

　　1. 英文日记的格式：日记一般没有标题，也无需落款。通常在左上角，写出日期和星期，星期在前，日期在后。日期的顺序常为：月、日、年。也可以在右上角，写出天气。

　　2. 叙事为主的日记必须从表达中心思想的需要出发，讲清事情，使读者明白所讲的是什么样的人，怎样的事。同时注意把必要的时间、地点交代明白。事情总是随着时间的进程发展变化的，所以记事常常按照事情发生、发展和结局的时间顺序来写。有的事应该详写，有的可以略写；有的适宜直接述说，有的可以借人物对话来反映，这些都从表达中心的需要和效果来考虑。整篇文章要写得完整、清晰、有条理，使读者读后留下深刻的印象。叙述事件的语言要生动、形象。语言风格也可以风趣、幽默，也可辅之以表达作者的感情和态度。

　　3. 记事的记叙文一般都用过去时态，因为它叙述的都是发生过的事，但根据需要部分内容也可用一般现在时；在人称使用上，本人的经历或耳闻目睹的事件用第一人称；表示