Great scientists（Period 1 Welcome to the Unit ）
then the teacher can have the students match the famous scientists with their discoveries, inventions or theories, making sure that they have some common sense about some world-famous scientists.later the students will be divided into several groups, describe one of the great scientists and let other students guess who he or she is talking about.in this way, the students should learn to organize their own sentences and express their ideas clearly.after that, the students will feel comfortable to do the quiz in the text.the students should be encouraged to give more information about these ten scientists.meanwhile, the students’ interest in scientists and science should be cultivated.so two topic discussion questions, as well as the practice exercises are designed.the post-class activities are designed to arouse the students’ interest in science and encourage them to“diy—do it yourself” in their daily life if they have some doubt in some areas.teaching important pointshave the students discuss great scientists.encourage the students to hold their views about their future career.understand and learn the following words and expressions: engine, characteristic, radium, theory, scientific, examine, conclude, analyse, repeat, defeat, attend, expose, cure, control, absorb, severe, valuable, blame, immediately, handle, announce, instruct, virus, construction, contribute, positive, movement, backward, complete, enthusiastic, spin, reject, view, steam engine, put forward, draw a conclusion, in addition, link...to..., be strict with, lead to, make sense, point of view.teaching difficultieswhat can we learn from the scientists?what should we do in our daily life to develop our interest and love for science?teaching aidscai equipment with a multi-media classroom and other normal teaching tools.three dimensional teaching aimsknowledge aimslearn something about some famous scientists in the world.know about the outstanding discoveries, inventions and theories from some well-known scientists.try to understand and learn the important words and expressions.ability aimsdevelop the students’ ability of speaking.encourage the students to give more information about the great scientists.emotional aimsencourage the students to learn more about the great scientists and learn from them.help the students to form the good habit in learning and encourage the students to take part in social practice.help the students to realize that it is scientific spirit that makes those scientists successful.