九年级英语when was it invented课件4

九年级新目标,Unit 9 When was it invented?,Self check,1. I dont like eating chocolate. The taste is too _. 2. Mom added salt but it still wasnt _ enough. 3. I prefer lemons to oranges. I like the _ taste. 4. She likes _ cookies. They are hard, dry and easily broken.,crispy,sweet,salty,sour,crispy, sweet, salty, sour,1. Fill in the blank with the correct word given.,Explanation,1. I prefer lemons to oranges. prefer是动词，意为“更喜欢”，常可与like better, instead进行替换。常见句式有prefer A to B, prefer doing to doing B, prefer to do A rather than do B. 例如： I would prefer playing outside to watching TV. I prefer to go to the movie rather than stay at home.,2. They are hard, dry and easily broken. broken为 break的过去分词，相当于形容 词的作用，意为“碎了的 ，坏了的”,可作 定语或表语。例如： -What s wrong with your wtch? -Its broken. There is some broken glass on the ground. Be careful of the glass broken by the cat.,Do you know the difference?,be invented by,be invented in,be invented to,Emphasize on person,Emphasize on time or place,Emphasize on the usage,Can you make sentences with them?,1. Telephone _ Alexander Graham Bell, who is an Englishman. 2. various things have _ record the history of human being. 3. paper _ first _ ancient China, and it is one of the most important inventions in the world.,be invented by/in/to,was invented by,invented in,was,been invented to,Please translate these sentences into English. 1. 这样的话，我们明天就可以完成任务了。 _ _ _, we can _ our task tomorrow. 2. 茶是在很偶然的情况下发明出来的。 Tea was _ _ _. 3. 我们爬山的时候不小心掉进一个山洞里了。 We _ _ a hole when we _ _ the mountain. 4. 自从发明了电之后，人类历史进入了新的篇章。 After electricity _ _, our history _ _ a new stage.,In this way,finish/ complete,invented by mistake,fell into,were climbing,was invented,got,into,2. When were they invented?,abacus in the 19th Century,umbrella at the end of Spring and Autumn Period,binoculars in 1600,camera in 1839,bicycle in 1839,car in 1885,motorcycle in 1885,toothbrush in 1780,washing machine in 1858,A sample version,The abacus was invented in the sixth century by Chinese people. The umbrella was invented about 4,000 years ago in Assyria, China and Egypt. The binoculars was invented in 1854 by Galileo Porro in Italy. The camera was invented in 1827 by Joseph Nicephore Niepce who took the first picture. The bicycle was invented in 1880s in England.,Just for fun!,根据汉语及首字母写出单词。,1. When I began to sing，he laughed and made me very e_(尴尬的)2. After a long trip to Europe，1 felt very e_(精疲力竭的)3. a_：to make known publicly4. d_：to give an account of in speech or writing,embarrassed,exhausted,announce,describe,5. a_：one that is invested with this power，especially a government or government officials.6. Last night a friend of mine invited me to a c_ party