外研版英语八年级下M3Unit 3讲解.ppt

Listen and complete the notes. 1. The astronaut joined CNSA _________ years ago. 2. He has flown in a spaceship ________ times. 3. He felt __________ when he was in the spaceship. six two excited 4. He has been to the space station _________. 5. The earth was blue and very ___________ when he saw it from the space station. 6. He decided to be an astronaut because he has always been __________ in space. twice beautiful interested * * Scientists have sent spaceship to Mars. The journey has taken several months. Astronauts have already been to the moon. No one has been to Mars yet, because Mars is very far away, much farther than the moon. Scientists have also discovered many other galaxies in the universe. Scientists have sent spaceship to the planet Mars to take photos. They have even sent spaceships to travel outside the solar system. No spaceship has travelled far enough to reach other stars in our Galaxy. 1. I’ve just made a model spaceship. 2. Has it arrived yet? 3. Astronauts have already been to the moon. 4. We have not found life on any other planets yet. 在现在完成时的句子中，already(已经)、just(刚刚)常用于肯定句，放在have和has的后面。yet(还、尚、仍然)常用于否定句和疑问句，（放在have和has的后面也可放在句末）。 Spaceship on Mars! Astronauts have (1) ________ been to the moon but they have not been to any other planets. However, a spaceship (2) _______ arrived on Mars and it has (3) _______ sent back photos of the red planet. Is there life on Mars? We do not know (4) ________. already just already yet Complete the news with already, just and yet. have/has been to与have/has gone to的区别: have/has been to表示某人“去过某地，现在已经回来了”。 have/has gone to表示某人“去某地了”，这个人已经不在这里了。 The spaceship has gone to Mars. It has gone there, but it has not come back yet. Astronauts have been to the moon. They went there and then they came back. Look at these sentences. 1. Astronauts have been / gone to the moon and returned. 2. The spaceship has been / gone into space. It will travel for ten