unit 3 computers ⅰ.单词拼写 1.with the development of science and________(技术),a new robot is on the way. 2.our dream is to________(探索)the universe. 3.it was a________(合情理的)conclusion from the child's point of view. 4.my________(目标)in life is to help others. 5.the train must stop when the________(信号)is red. 6.i'm going to visit my n________. 7.he is clever enough to s________the maths problem.