阅读理解，阅读下列短文，从各题所给的A、B、C和D项中选出最佳选项。

　　Lightning(闪电)is shocking, and it happens all over the world! Scientists think that there are more than three million lightning strikes(袭击)every day in the world-that's thirty strikes every second．

　　Lightning can also be very dangerous．Every year, lightning kills people because it can start big fires or because it reaches temperatures up to 28, 000 degrees centigrade．American Roy Sullivan, who worked in a park, holds the record for surviving the most lightning strikes．Between 1942 and 1983, he was hit seven times!

　　So, why does lightning strike? Lightning strikes happen when ice and water in clouds rub(摩擦)together, and cause atmospheric(大气层的)changes．When this happens, it creates a static charge(静电电荷)．Lightning can strike inside the cloud, between two clouds and between a cloud and Earth．It's the last type of strike that is the most dangerous for humans．About 1, 000 people get struck by lightning every year in the United States, and about 100 of them die as a result．

　　Lightning is certainly not something to toy with．When lightning strikes, it's best to stay inside a large building．To stay safe, do not stand under trees, on hills or near water．Trees attract lightning．Also, do not lie down on the ground, otherwise the electricity may go through you and cause a heart disease．

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阅读理解，阅读下列短文，从各题所给的A、B、C和D项中选出最佳选项。

　　Robots aren't only in the movies or on TV．One “real” robot recently married a couple at a wedding ceremony in Tokyo, Japan．

　　Fifty guests stood as the music played and the bride(新娘)walked down towards the groom(新郎)．Only one guest stayed seated-the minister(牧师), who happened to be a robot．For this special ceremony, the four-foot tall robot named I-Fairy wore flowers around her head．I-Fairy's eyes flashed colored lights as she pronounced the couple man-and-wife and asked the groom to kiss the bride．The wedding was the first time a marriage had been led by a robot, according to the company that built I-Fairy．

　　A robot might seem like an unusual choice(选择)to lead a wedding, but if you knew the couple you would think I-Fairy was the perfect choice．That's because the groom teaches robotics at a university and the bride works for the company that built I-Fairy．The newly married couple hopes their wedding will encourage more uses for robots．They hope their wedding will give people ideas about ways in which they might use robots to do “everyday things” in their lives in the near future．

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语法选择

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，从各题所给的A、B、C和D项中选出最佳选项。

　　It's very important that we all recycle(再利用)．In nature, everything 　　1　　 again．For example, when an animal dies, it becomes 　　2　　 animal's food．Nothing is wasted．But humans have created things like plastic bags 　　3　　 can't be broken down by nature．Our rubbish kills animals and 　　4　　 water and soil．　　5　　 we continue making too much rubbish, the problem will only get worse．If nature can't reuse the rubbish, we must recycle 　　6　　．

　　We should clean up the rubbish we've made because nature can't．

　　Recycling is also the right thing to do for another reason．The earth is rich in natural materials like water and trees, 　　7　　 these materials are not endless．We use up our natural materials much 　　8　　 than the earth is able to reproduce them．For example, each year we cut 　　9　　 more that 6,000 square miles of forest．But it takes an average of 25 years for a new tree 　　10　　．

　　Recycling can help us save the earth, so let's take action right now．

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阅读下面短文，按照句子结构的语法性和上下文连贯的要求，从各题所给的A、B、C和D项中选出最佳选项．

　　Annie was excited．Her mother 　　1　　 to Beijing today and would be staying with her 　　2　　 two weeks．She cleaned her home and thought about 　　3　　 some flowers, but there wasn't time．She got in her car, turned on the radio and was heading off when the radio reported that all planes to Beijing would be two or more hours late because it was raining 　　4　　．With great disappointment Annie went back inside．

　　Two hours later, Annie arrived at the airport and was 　　5　　 to see her mother waiting outside!She had decided to take an earlier plane 　　6　　 she could get to Beijing on time．She didn't think it was necessary to phone Annie as the earlier plane would arrive at the airport at the time her daughter expected．

　　　　7　　 mistake!Annie could have come earlier, but didn't．Her mother could have phoned from the plane, but didn't．They were 　　8　　 hungry and tired．Annie was going to take her mother to 　　9　　 American restaurant, but her mother just 　　10　　 to get home to rest．

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