Revision
1. Check the exercise.
2. Test some word studies.
Reading
As we know, with the development of technology, computer has become a must in our daily life. On the other hand, cybercrime also appears. Scientists and experts are working hard to fight against cybercrime. Now open your books, turn to page 50.
1. Read the passage quickly and answer the three questions in part A.
2. Read the passage again and finish exercises C1 – E on page 52 and 53.
Language focus
1. expand：to grow larg er：膨胀； to spread out：展开
