1. 选词填空

lead to,   prevent. . . from,   take steps, get burnt,    sense of touch,    stick to,    electric shock,     apply. . . to

1. （1） Can our help us develop stronger social relationships with each other?
3. （2） I brought my finger close to the key, and I felt a light but very clear .
5. （3） Not until the beginning of the 20th century did people learn how to  the disease spreading.
7. （4） You should learn a lesson from this incident: he who plays with fire will surely .
9. （5） Two analyses now show that poor air quality can heart attack.
11. （6） I find it hard to cooperate with those who always their own opinions.
13. （7） We should encourage students to what they have learned in classpractice.
15. （8） After you have identified the root cause, you can then to resolve the issue.