Great scientists（Period 1　Welcome to the Unit ）

step 3 word puzzlest: open your books and turn to page 92.let’s read the words and expressions together.��(let the students read the words and expressions together.help them pronounce the new words and expressions correctly.later give them some time to practise reading and remember some easy and important ones.give more help to those who are poor in pronunciation.)��t: here are some definitions of some of the words from this unit.please work in pairs and match the words with their definitions.(group competition)��words　　           definitions or explanationsa.examine             1.general principles of an art or science��b.repeat                2.say or do again��c.theory                3.at once; without delay��d.immediately              4.look at...carefully in order to learn about or from...��e.complete            5.of great value, worth or use��f.valuable              6.having all its parts; whole; finished��g.announce            7.make known��h.control               8.come or bring to an end��i.positive               9.power to order or direct��j.conclude             10.quite certain or suret: now, let’s check the answers.a—4, b—2, c—1, d—3, e—6, f—5, g—7, h—9, i—10, j—8. you have done a good job.i will give you some more minutes to go over all the words and expressions and then fill in the blanks with proper forms of some of them from this unit.��1.“all roads lead to rome, ”he encouraged me after i failed the entrance examination.��2.this sentence doesn’t make any sense.��3.our english teacher is not only strict with us but also friendly to us.��4.he is good-looking, apart from his nose.��5.it is announced that the spacecraft, shenzhou ⅵ, landed on the earth successfully.��6.it is not tom but you who are to blame.��7.in 1995, the chinese government put forward a plan for“rejuvenating the nation by relying on science and education”.and it has helped chinese scientists make many breakthroughs.��