My dear husband,                                            

           I am sending you this letter by e-mail so that you will be sure to read it. Please forgive us for leaving, but I think you should know   (1)   has happened at home since your computer entered our lives two years ago. You just spend all day playing games or   (2)   (chat) online. After all, both the kids and I need a normal life so we chose to leave. The children are doing well. Tommy is seven now and he is a bright and handsome boy. He has developed   (3)   great interest in arts. You should be very proud   (4)   him. Little Jennifer turned five in September.   (5)   is an attractive child and quite smart. She still remembers the day   (6)   you spent the whole afternoon with us on her birthday. Now we   (7)   (take) a trip and I have to do the packing. I have hired a housekeeper to take care of things while we are away. I believe she can put things   (8)   order, fill your coffee cup and bring your meals to your desk, just the way you like it. I hope you and the computer will have a   (9)   (love) time while we are not at home. Tommy, Jennifer and I will miss you often. Try to remember us while your computer is booting, or call me on condition   (10)   you think we are more important than the computer.

                                                                                                                                                                                                       Love,

                                                                                                                                                                                                               Your wife

It is sad but true ___61___ people die in earthquakes from falling furniture(家具) and bricks. Earthquake ___62___ (safe) is very important and there is more to it than just keeping buildings ____63___ falling down. So if your home is in ___64__ earthquake area, you should prepare carefully before the earthquake ___65____(come).

 First, make sure you buy a house which is earthquake safe, all pipes should be fixed to the wall and all walls should be especially thick and strong, you also have to make sure that there are bolts underneath your house. They are one of the most important ways of protecting a house. Make sure the building has no ____66__ (break) windows and is well repaired.

 Second, look at the objects in your house. Those in the living room, _____67___ are the most likely to hurt us, are computers, televisions and lamps. They can be tied to tables or stuck to them so they won’t _____68__(easy) move around. The kitchen, which is also very ____69____(danger), must have strong doors on all the cupboards. This is the place where many small things are stored that might fall down. The water heater should have a case round it too. Windows are a special problem. When they break, glass can cause many accidents. It is better to use safety glass if you can, especially for pictures.

 Always remember: “It is ___70_____(good) to be safe than sorry.”

Educated people in the twenty-first century may find it hard to believe that two hundred years ago people did not link illness   61   environmental problems. We all know that in London drinking  62   (pollute) water caused many deaths from cholera. So many thousands of people became  63   (terrify) every time there was an outbreak. John Snow was interested in its cause. First he marked on a map the exact places   64   all the dead people had lived. John’s investigation proved the dirtier the water,    65   (severe) the illness. He drew a  66   (conclude) that many of the deaths were near the water pump in Broad Street and cholera wasn’t spread in   67   cloud of gas . He   68   (immediate) told people to remove the handle from the pump. To prevent this from   69   (happen) again, John Snow suggested that the source of all water supplies be examined. Thus cholera   70   (defeat) in the end.