我的第四單元---馬德堅(jiān)

1、Unit 4Unit 4 Astronomy: Astronomy: the science of the starsthe science of the stars What subjects are learnt in high school? Chinese Mathematic English PEPhysic Chemistry Biology, etcwhich subject belongs to science? Mathematic Physic Chemistry BiologyWhat do you know about astronomy?Lead-in is the

2、scientific study of the universe and the heaven bodies (such as the sun, the moon, and stars), gas, and dust within it. What are in the pictures?1. In our solar system eight planets circle around the sun. What are they? Can you name them with your partners? Then match the names with the planets? Loo

3、k at the picture and work in pairs. Then check your answer with other pairs. Warming upMercury水星水星Venus金星金星Earth地球地球Mars火星火星Jupiter木星木星Saturn土星土星Uranus天王星天王星Neptune海王星海王星Thinking 1) What do you know about the origin of life on earth?2) Do you know how life began on earth is explained in different re

4、ligions and cultures? Pangu separates the sky from the earth 中國(guó)神話傳說(shuō)中有盤(pán)古開(kāi)天地的說(shuō)法。中國(guó)神話傳說(shuō)中有盤(pán)古開(kāi)天地的說(shuō)法。巨人盤(pán)古用一把利斧劈開(kāi)混沌巨人盤(pán)古用一把利斧劈開(kāi)混沌,將天地分開(kāi)。將天地分開(kāi)。死后死后,他的氣息化成風(fēng)和云他的氣息化成風(fēng)和云,聲音變成轟轟的聲音變成轟轟的雷聲雷聲,左眼化為太陽(yáng)左眼化為太陽(yáng),右眼化為月亮右眼化為月亮,手足與四手足與四肢變成大地的四極與五方的名山肢變成大地的四極與五方的名山,血液化成血液化成江河江河,筋脈鋪成道路筋脈鋪成道路,肌肉形成田地肌肉形成田地,須發(fā)成為須發(fā)成為星星星星,牙齒和骨骼化為金

5、屬、珍珠、玉石牙齒和骨骼化為金屬、珍珠、玉石,汗汗水成為滋潤(rùn)萬(wàn)物生長(zhǎng)的甘霖和雨露。水成為滋潤(rùn)萬(wàn)物生長(zhǎng)的甘霖和雨露。Other legends about the beginning of universe was create by GodRead the text quickly and write down the main idea for each paragraph.Para. 1 The formation(形成形成) of the earth.Para. 2 The importance of water for life.Para. 3 A widely accepted th

6、eory about the formation of the universe.Para. 4 The arrival of humans and their impact on the earth. Para. 5 The development of plants and animals on the earth.II. Read the text and fill in the blanks in the following form.TimeWhat happenedBig Bang_ began to form and combine to create stars and oth

7、er bodies.AtomsBetween 4.5 and 3.8 billion years agoDust settled into a solid and _ globe.The earth exploded to produce its_ .The continued _ of water allowed the earth to dissolve harmful gases and _ into the oceans and seas.violentatmospherepresenceacidsMany millions of years laterThe first small

8、plants on the surface of the water produced_ .Early _ and all sorts of fish appeared.Green plants began to grow on land. Insects and_ appeared.oxygenshellfishamphibianslWork in pairs. Put the order of developmentof life into a timeline first according to your common sense, and then according to the

9、reading passage. 10 73 8 4 9 6 1 5 2 12 111. Insects and amphibians appeared.3. The earth became a solid ball.5. Reptiles appeared.7. The earth was a cloud of dust.9. Shellfish and other fish appeared.11. Clever animals with hands and feet appeared.2. Dinosaurs appeared.4. Small plants grew on the w

10、ater.6. Plants began to grow on dry land.8. Water appeared on the earth.10. The universe began with a Big Bang.12. Mammals appeared.Read the text carefully and think about what you have read and discuss these questions in pairs. 1. Why was the earth different from the other planets? Because water re

11、mained on the earth.2. Why did the plants grow before the animals came? Because plants provided oxygen for animals to breathe.3. Why is it wrong to show films with dinosaurs and people together? Because dinosaurs died out long before human beings developed on the earth.4. There used to be nine plane

12、ts in the solar system. Recently scientists have decided that one of them can no longer be considered a planet. Do you know the name of that planet? Do you know why they removed it? The name is Pluto(冥王星冥王星). Scientists now think it is too small to be called a planet.5. What problem is caused by human beings? Human beings cause global warming.1. Which words, phrases, structures, or sentences are difficult for you to understand? Underline them, guess using context and then ask your teacher. 2. Read aloud after t