Unit 1 How long is the Great Wall?大声读出出现的数字tentwentythirtyfortyfiftysixtyseventyeightyninetyone hundredtwo hundredthree hundredfour thousandtwo thousandthree thousandone thousandfive thousandsix thousandseven thousandeight thousandnine thousandWhat can you see?I can see … .1,0002,0003,00023,00010,0009,0008,00014,00055,000100,000one thousandtwo thousandthree thousandtwenty-three thousandten thousandnine thousandeight thousandfourteen thousandfifty-five thousandone hundred thousandWhat can you hear?1220501006080189912,00020,0005,0001,00060,00080,00018,00099,000Read the text, and answer:How long is the Great Wall?It’s five thousand kilometres.Xiangtan Changsha How long is it?40 kilometresIt’s forty kilometres long.BeijingChangshaHow long is it?It’s 1,700 kilometres long.1,700 kilometresBeijingShanghaiHow long is it?It’s 1,463 kilometres long.1,463 kilometresShenzhen Changsha How long is it?It’s 869 kilometres long.869 kilometres量一量,比一比,说一说How long is your desk?It’s 57 centimetres long.How long is your ruler?It’s … How long is your pen?It’s … How long is your pencil?It’s … How old is the Great Wall?It’s more than two thousand years old.Read and answer.1.Where does Simon want to go?2.What is near to Daming’s home?3.Can they walk all of the Great Wall?4. How old is the moon?Read and answer.1.Where does Simon want to go?2.Is it near to Daming’s home?Simon wants to go to the Great Wall.Yes, it is.3. Can they walk all of the Great Wall? Why?4. How old is the moon?No, they can’t. Because it’s too long.It is millions of( 几百万 ) years old.