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1、Unit 6 Science and TechnologyPart Warming upA.key words:bulletproof vest防弹背心Impenetrable by bullets.predicting weather预测天气To state, tell about, or make known in advance, especially on the basis of special knowledge.预测，预知，预告：预先陈述、告诉或公布，尤指以特殊知识为基础chess国际象棋A board game for two players, each beginning w
2、ith 16 pieces of six kinds that are moved according to individual rules, with the objective of checkmating the opposing king国际象棋：一种两人参加的棋盘游戏，每人最初执16枚棋子，其中分为六种，每种按不同规则移动，目标为将死对手的国王Vocabulary:shooting range射击场yarn纺线A continuous strand of twisted threads of natural or synthetic material, such as wool o
3、r nylon, used in weaving or knitting.纺线，纤维线：天然或人工合成材料制成的盘绕成股的连线，如羊毛或尼龙，用于纺织或编织pawn卒A chess piece of lowest value that may move forward one square at a time or two squares in the first move, capture other pieces only on a one-space diagonal forward move, and be promoted to any piece other than a king
4、 upon reaching the eighth rank缩写 P【游戏】 兵，小卒：价值最小的棋子，一次可向前移一方格或在第一步可移两格，只能吃对方靠对角线前方的一个子，当到达第八级时可升为除王以外的任何一棋子electrode电极A solid electric conductor through which an electric current enters or leaves an electrolytic cell or other medium.电极：一个固体电导体，电流通过它进入或离开电解电池或其它媒质lever杠杆A simple machine consisting of
5、 a rigid bar pivoted on a fixed point and used to transmit force, as in raising or moving a weight at one end by pushing down on the other杠杆：固定于某一枢轴，用来传递力的一种简单的装置，带有一个金属杆，如通过压低一端而举起或移动另一端的重物NECNEC公司，是世界五大电脑制造商之一A1. 1. This news item is about a kind of new bulletproof vest made of silk.2. This news i
6、tem is about research done by American and Japanese researchers to predict severe weather in and around the Indian Ocean.3. This news item is about a chess match between a world champion and the rest of the world on the Internet.4. This news item is about an experiment carried out by the U.S. scient
7、ists to train rats to operate a robot arms by using the electrical signals in their brains.5. This news item is about NECs new robot that talks and understands orders.A2. 1. While silk threads may be soft, they can be used to produces a stronger yarn than copper threads.2. American and Japanese rese
8、archers have discovered a strong connection between extreme weather and conditions in the ocean.3. Visitors to the site have 24 hours to vote on their counter move helped by a team of young chess experts who will suggest strategies.4. The rats had earlier been trained to obtain a reward by pressing
9、a lever to move the arm.5. The robot from NEC can record and send video mail through the Internet and switch on TVs, VCRs and air conditioners.Tapescript:1. Thai silk is known for its beauty and elegance. But a research team has fund a new use for it. A bulletproof vest made of silk was put to the t
10、est at a shooting range in Thailand. After several rounds of gunfire, the vest was examined. The bullets were stuck in the first layer of fifteen pieces of silk. A member of the research team says while silk threads may be soft, they can be used to produce a stronger yarn than copper threads, the ma
11、terial used in regular bulletproof vests.2. American and Japanese researchers say they are a step closer to predicting severe weather in and around the Indian Ocean. Researchers have analyzed weather data from the region over the past 40 years and theyve discovered a strong connection between extrem
12、e weather and conditions in the ocean. A BBC science correspondent says the findings could make it easier to predict droughts or, indeed periods of heavy rainfall.3. The world chess champion Garry Kasparov began a match against the rest of the world on the Internet. Kasyanov made his first move with
13、 a meter-high pawn before an audience of chess fans at a park in New York. The move was immediately posted on a special website set up by the Microsoft Corporation. Visitors to the site have 24 hours to vote on their counter move helped by a team of young chess experts who will suggest strategies.4.
14、 Scientists in the United States have trained rats to operate robot arms using only the electrical signals in their brains. The scientists attach special electrodes to the animals brains and link them through a simple computer to a robotic arm. The rats had earlier been trained to obtain a reward by
15、 pressing a lever to move the arm.5. Some say its hard to find good help these days, but a Japanese electronics firm thinks its found the answer. Its a robot that talks and understands orders. The robot from NEC can record and send video mail through the Internet and switch on TVs and VCRs. And if i
16、ts becoming a bit warm for you, one simple command and the robot will switch on the air conditioner.B. key words:force of attraction【物】引力spark火花The luminous phenomenon resulting from a disruptive discharge through an insulating material电火花：因通过绝缘材料的分裂性放电而产生的发光现象penetrateTo enter or force a way into; pierc
