connectives and underline all the useful expressions.

IV. Copying and making sentences

You are asked to copy all the useful expressions into your notebook after class as homework. You may make your own sentences with each of these expressions.

Expressions from THE PROBLEM OF THE SNAKES call up...on the telephone给......打电话, in the countryside在农村, in our yard在院子里，come near the house走近房子, now and then时而、有时，make one's home here在这里安家, get rid of...除掉, feel very proud感到自豪骄傲, a chance for...to do...某人做......的机会, distinguish oneself显扬自己，使自己扬名, invent something发明某物, catch snakes捉住蛇, hurt these living creatures伤害这些生物, be designed to do...旨在做......, kill snakes杀死蛇, a new approach新方法, set about doing...着手开始做......, research the habits of...研究......的习性, trap...in the easiest way用最简易的方法捕......, make the solution easier使问题比较容易解决, be prepared with...做......准备, decide on...决定......, remove one's habitat铲除......的栖息地, attract...into a trap把......引进陷阱, use male or female perfume or food用男人或女人用的香水或食物, become sleepy困乏, be easily caught容易被捉住, an ice-cream maker一个之冰激凌的器具, between the outside and inside walls of the bowl在碗的外壁和内壁, freeze hard冻结, place...over...把......放在......上方, on top of... 在......上方, keep... cool保持......冷却, cover the whole thing with...用......把整个罩住, a large bucket一个大桶, abruptly disappear into a convenient hole突然一下子就消失在附近的洞里, adjust one's plan调整计划, for the second attempt第二试验, leave...overnight把......通宵放在, early the next morning第二天一早, see the result看结果, get down to do...蹲下去做......, pick... up捡起......, improve one's design改进方案, repeat the earlier procedure重复上次程序, carry in one's hand...手里拿着......, a small net used for...一个用来......的小网, in the expectation that...预料到......, be monitored carefully仔细监视, go according to plan按计划进行, the passive snakes温顺的蛇, release...all back into the wild全都释放......到野外, be pressed by...由于......的督促, send...to the patent office把......送到专利局, get recognition for...给与......认可, have the recognition取得认可, truly an inventor真正的发明者, in addition此外, get a patent去得专利, a scientific theory一种科学理论, a mathematical model一种数学模式, a computer program一个电脑程序, a large number of patent examiners一大批专利审查人员, one's application for..申请......, fill in the form填表, file one's patent application with the Patent Office向专利局提交申请书, a matter of.........事情, succeed by the size of one's bank balance看某人的银行结余判断是否成功, wish... luck祝......好运 V. Reading to transform information

THE PROBLEM OF THE SNAKES Why was my mother upset? There are some snakes in our yard. Why did I feel very proud? Here was a chance for me to distinguish myself by inventing something that would catch snakes but not harm them． What was the first thing I tried to do? The first thing I tried to do was to see if there were products that might help me. What are the three possible approaches? Firstly, removing their habitat; secondly, attracting them into a trap using male or female perfume or food; and thirdly cooling them so that they became sleepy and could be easily caught. How many attempts did I make? I made three attempts.

My first step: