Earth is the only planet we know that supports life. If we don't try hard to take care of it, we willlose our only home.

　　Cross-curricular connection

　　1-4 CBDA

　　单元评价

　　一、第一节 1-5 BBACB6-10 CAABC

　　第二节 A.energyB.howmuch C.Study D.apiece of paper E. friends二、第一节 11-15 ABDDC 1620 ABBDC

　　第二节 21-25DCBAC2630BADAD

　　三、31-35 CCBDD 3640 BBACA

　　四、第一节 41-45 DCDBB 460BDDAB

　　第二节 51-55BAEDC五、第一节 56.pollution 57.burn 58,harmful 59.solutions 60. protect第二节6l.arecoveredby62.blow away 63.hundreds of 64. What's more;provide; with 65. there is

　　第三节 Hello, everyone! I think we can do many things to protect our Earh.When we go shopping,we can use our own shopping bags instead of plastic bags. To saveenergy, we should turn off all the lights when we don't use them. We can also go to school by bike olon foot. It helps to keep the air clean. Ve can take a shower instead of a bath so that we can save waterLet's start our small steps to proteet the Earth.

　　Unit 5 Off to space

　　课堂评价

　　Reading

　　、1.spaceship 2.take 3.float 4,weak 5.tie 6.Because 7.exercise 8. so9.breathe 10. photos

　　_、1. They will have to be warm because the Moon is very cold.2. No,they may notget too excited because taking a trip to the Moon will cost a lot of money.Listening

　　-、1-3 ABC

　　二、A.Wakesup B.7:30 a.m.C.8: 00 a.m.D.Gets home E.7:30 p.m.