Unit 3 Inventors and inventions 课件-2021-2022学年高二下学期英语人教新课标选修八

Unit3 Inventors and Inventions 1. Know some basic knowledge of inventions. 2. Summarize the main idea of the passage. 3. Develop the ability of solving problems. Learning aims paper-making powder the four great inventions of ancient China Warming-up compass printing bike sharing high-speed rail the new four great inventions of China alipay online shopping Inventions always have been with us. They have made great contributions to our life. In the process of fighting against the virus, inventions helped us solve many problems. Can you distinguish a discovery from an invention? ② ③ ④ ⑤ ⑥ ① discovery Isaac Newton was looking at the falling apple and an idea came into his mind: the power of gravity. Look at these pictures below, discuss in pairs which pictures show inventions and which show discoveries, then tell us the reason. ① ② ③ ④ ⑤ ⑥ George Stephenson was one of the first men to design engines for the railways which were new at that time. invention ① ② ③ ④ ⑤ ⑥ Marie Curie and her husband _____________ the new chemistry elements — Polonium (钋) and Radium (镭). discovered ① ② ③ ⑤ ⑥ ④ Zhang Heng ___________ the first seismograph(地震仪) — the earliest instrument to tell people where earthquakes happened. invented ① ② ③ ④ ⑤ ⑥ This is the first car that can travel safely on water and on land. When moving on water, the wheels of the car turn sideways and move into the body. The underneath of the car is strong enough to sail as a boat. invention ① ② ③ ④ ⑤ ⑥ Francis Crick and James Watson were the first to show that our genes consist of two spirals of DNA (called the double-helix (双螺旋)). This work led directly to the human genome project (人类基因工程) in 2003, which ______________ the structure of DNA. discovered A discovery ________________________________________________________________________________ ________________. An invention __________________________________ ___________________________________________________. is recognizing something that already exists for t