1. 选词填空

switch off; early on; in this sense; keep in touch with; keep track of; in the absence of; place emphasis on; catch fire

1. （1） In order to  each other, everyone in the group exchanged telephone numbers when they were leaving.
3. （2） Social media enables us to  the current events happening in even distant places.
5. （3） China has  the development of high-tech industries, with AI being a key field.
7. （4）  data, it's difficult to make accurate predictions about the effects of the new car on the environment.
9. （5） Danger is the next-door neighbour to security., bad things can turn into good things.
11. （6） A study suggests teenagers who the TV and sit down to family meals are less likely to suffer from eating disorders.