Unit 4 Measuring like a Craftsman 第3课时 课件-2023-2024学年中职高三上学期英语语文版（2021）职业模块（生产制造类）

英语·生产制造类 Unit 4—（3） Measuing like a Craftsman 职业模块·生产制造类 Can you name the units? measurement units weight: capacity: area: time: speed: angle: kilogram, gram, milligram,metric ton cubic metre,cubic millimetre, cubic centimetre,metre, millimetre square metre, square millimetre, square centimetre,square kilometre, hectare second, microsecond, millisecond, minute, hour metre per second, kilometre per hour, centimetre per second degree Let’s read them together. 职业模块·生产制造类 职业模块·生产制造类 Let’s review information about computer aided design Computer Aided Design Computer Aided Design (CAD) is the use of computers to help designers do their work. In engineering and product design, computers can help designers with calculations, information storage and drawing. The designer usually starts the design with a draft, and the heavy work of turning it into a working diagram can be handed over to the computer. CAD technology has been widely used in various fields of engineering design. storage draft designers product design engineering design Read aloud Let’s review together. Let’s read the dialogue. 职业模块·生产制造类 职业模块·生产制造类 The basic unit of voltage is the volt. The derived units are the kilovolt, millivolt, microvolt, etc. The basic unit of electric current is the Ampere. The derived units are the kiloampere, milliampere, microampere, etc. The basic unit of electric resistance is the Ohm. The derived units are the kiloohm, megaohm, etc. Let’s read together. Weight (Mass): The basic unit of mass(质量) or weight(重量) is the kilogram(kg). The derived units(派生单位) of it arethe gram(g), milligram (mg) and metric ton(1,000 kg),etc. Capacity (Volume): The basic unit of capacity(容积) or volumn(体积) is the cubic metre (m3). The derived units of it are the cubic millimetre (mm3), cubic centimetre (cm3), litre (l), mililitre (ml), etc. 1 ml is 1cm3. 1 litre is equal to 1,000 ml or 1,000 cm3. 1,000 litres is equal to