Unit6 Earth first第三课时Developing ideas课件

Unit 6 Earth FirstDeveloping ideas What's really green?1. To have a general knowledge of what's really green in our daily life.2. To improve reading skills for main idea and details. 3. To learn the importance and function of subheadings.4.To learn some key words and expressions in this lesson.副标题Here are some questions about “green living” in activity one.Choose the answers you agree with.1. Which shopping bag is more environmentally friendly? □ A plastic bag. □ A paper bag. □ Neither of these.2. What should you do to save energy when leaving your home? □ Turn off a device. □ Unplug a device. □ Neither of these.3. What food is better for the environment? □ Food produced near to where you live. □ Food produced far from where you live. □ It depends.4. Which uses less water? □ Taking a bath. □ Taking a shower. □ It depends.Learning to learnAs subheadings expand on the main heading or title, they can be slightly longer than the main heading. Although not every paragraph needs a subheading, they can be skimmed to give the reader an overall understanding of the content of a text.Pre-readingWhat is a subheading?While-readingRead the subheadings in the passage and decide if it is true or false. Listen to the passage carefully.False( )1.Which of the following is NOT the disadvantage of plastic bags? A．Causing litter. B．Being treated as food by wild animals. C．Taking much more time to break down. D． Using much more energy to produce.DRead the first passage again and choose the answer.False( )2．Which one is true according to the fifth paragraph? A．Leaving a device in stand­by mode is environment­friendly. B．Older devices use less energy than new ones. C．Removing the plug from power supply will stop using power. D．Using electric devices as little as possible is the best way to save energy. CFalse( )3．Why do people prefer to eat local food? A．Because it can save the energy used to transport. B．Because it tastes better than the food transported long away. C．Because its production uses less energy. D．Because it produces less greenhouse gas.BFalse( )4.According to the passage, when should you take a shower? A. Anytime you like. B. When you spend less than 8 minutes in a shower. C. When your bath is quite large. D. When you use about 50 litres of water. B Devices turned off go into stand-by mode and still use power. Local produce sometimes might use more energy and produce more greenhouse gases than produce grown a long way away--even taking into account its transport. If you spend more than eight minutes in a shower, you'll use as much water as in a bath--about 50 litres of water.Post-readingGoodbye!