zielsicher Englisch, Metalltechnik, Schulbuch

Listen again to the supervisor Mr Kaup, talking about windows. Listen carefully to the text. Try to write a short summary for your portfolio. Summarise the text in 3 sentences and tell it to a classmate. Work in groups of five and prepare a short presentation. Prepare a short presentation about your topic. Try to make a rough sketch of your topic on an A3 sheet. The others take notes. Up-and-over doors Up-and-over doors are mainly for smaller wall-entrances, such as garages. Springs protect against the door falling and for ease of operation. They can be opened either by hand or electrically. Sectional doors Sectional doors consist of separate sections, which are moved vertically in order to open the entrance. These sections are connected flexibly and are moved upwards under the ceiling. Sliding gates Sliding gates are quite cost-effective. They can be single or double gates, but there must be enough space on each side to slide them. They either have upper track rollers or bottom tracks, but there are also self-supporting sliding gates. Roller doors A roller door is a sort of sectional door, but needs less space. It is easy to install and is more solid than a sectional door. Swing gates Swing gates are usually made of steel or aluminium. They can be single or double (winged) gates. They need a lot of space because they are opened on side hinges towards the inside or outside. Together with a partner, make a chart about the windows, doors and gates mentioned. Try to find information about their use, what they are made of and their advantages and disadvantages. Use the internet for help, if you can’t find all the information in the unit. What type of windows are common in different countries? Find pictures of them on the internet. Glue them into your exercise book or make a poster. 08 A2 listening 83f6jd 09 A2–B1 10 A2–B1 11 A2 Name Use Material(s) Advantages Disadvantages aluminium windows aluminium, powder-coated or anodized resistant to corrosion expensive steel windows cheaper than aluminium 114 Unit 21 Interaction Nur zu Prüfzwecken – Eigentum des Verlags öbv