网络（luò  lào）____    新鲜（xiān xiǎn）____   蜘蛛（zhī zī）____

屏幕（píng  bǐng）____  赞叹（zàn zhàn）____   欣赏（shǎng dǎng）____

当你的意见与父母发生冲突的时候，应如何与父母沟通？（    ）

①与父母大声争吵                                                     ②选一个合适的场合向父母坦诚地说出自己的想法

③在向父母表达自己的见解时要掌握用语分寸     ④因为是自己的父母，可以口不择言

⑤如果是自己错了，要主动向父母道歉                 ⑥如果是父母错了，就可以“得理不让人”

如图，小亮拿一张矩形纸图（1），沿虚线对折一次得图（2），下将对角两顶点重合折叠得图（3）。按图（4）沿折痕中点与重合顶点的连线剪开，得到三个图形，这三个图形分别是（      ）。

    James Dyson is a famous British inventor. One of his well­known inventions is the bagless vacuum cleaner (真空吸尘器).He 1 it in 1978. Today Dyson still2that day. “...I was the only man in the world with a bagless vacuum cleaner！” he said.

    Dyson, 65, wasn't a(n) 3at first.When he studied art at the Royal College of Art in London, he began to show an interest in design. There he invented his first product, the Sea Truck. It was a boat for4anything between islands.

    Then he started his first company to make and sell5invention. The Ballbarrow is a kind of vehicle (交通工具).But later Dyson left his6He didn't agree with his partners.

    After that Dyson began to improve on the vacuum cleaner. In 1985, Dyson took his product to Japan and7the Japanese to sell it. However, he didn't make much money. Several years later Dyson decided to8and sell the machine himself. By 2005, Dyson controlled both the European and American 9.

    Along the way, Dyson discovered the secret of10 “People will buy products if they're better”.

如图所示的四种现象中，由于光的折射形成的是（　　）