1. Unit 11 Scientific achievements

2. Listen to part 1 and complete the chart below. WordsSpeakerAchievement That’s one small step for a man,one giant leap for mankind Neil Armstrong Mr Watson,__________; I want you. Alexander G Bell QWERTYUIOP Ray Tomlinson Set foot on the moon first Invented the telephone and made the first call Sent first e- mail message come here

3. 2.Listen to part 2 and complete the sentences below. 1.The words ________________ are famous because they are the _______________ of the Constitution of the United States.. 2.Eureka is word from the ________ language and means________________. 3.If you ask a father, he might say : “__________________”. If you ask a mother,she might say : “_________________.” “we, the people” first words Greek I have found it Daddy Mommy

4. Listen to the 2 nd part and fill in the blanks 1. Words can also become famous because they are used in important ___________. 2. Other words have been made famous through stories about great ________…. Archimedes is said to ______ ________ an important law of physics when he was taking an ______. Watching the water of his bath on the floor, he said “Eureka”, _______ “I have found it.” 3. Of course, perhaps the most famous and important words in the world are the first words a _____ speaks. Proud parents often tell their friends about the important event, but mothers and fathers _______ agree on what the first word was. Depending on who you ask, that word is either … Well, can you guess? documents events have discovered bath meaning baby seldom

5. speaking

6. Dr Wilson: Because the number of people infected with AIDS is increasing at an astonishing speed. Some of them are facing death. Dr Jones: Because more and more people are expecting to get organ transplant( 器官 移植 ) in order to prolong( 延长） their lives.

7. Dr Smith: This is important because many people die for lack of food. Dr Winfrey: This is a very important project because we are eager to know if there are signs of life on Mars and if we can live there.

8. Task Hold a competition between four groups and see which group can list the most reasons for his research.

9. Homework : 1.Read the words and recite them. 2.Preview the reading material.