Many animals 31 (disappear) during the history of the earth. 32 (famous) of these animals were dinosaurs. They lived on the earth 33 (ten) of millions of years ago, long 34 humans came into being. There were many different species of dinosaur and several of them have been found in China. The eggs of twenty-five species have been found in Xixia County, Nanyang, Henan Province, and not long ago a rare new species of bird-like dinosaur was discovered in Chaoyang County, Liaoning Province. The scientists were surprised 35 (find) they could run 36 other dinosaurs, but also climb trees. They could tell this from the way the bones 37 (join) together.
Dinosaurs died 38 quickly about 65 million years ago. Some scientists think it was after a large rock hit the earth and put too much dust into the air. Others think the earth got 39 hot for the dinosaurs to live on any more. Nobody knows 40 sure. In the same way there are animals that have died out more recently and no one knows why. Listen to the story about the dodo, an animal that has disappeared from the earth.
阅读下列短文，根据短文内容填空，在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。
Earth Day, ________ (mark)on 22 April, is an annual event aiming to raise public awareness about environmental protection. First celebrated ________ 1970, the Day now includes events in more than 190 countries and regions (地区). No matter what you like to do, there is a way to get involved in various ________ (activity) on Earth Day. You can plant a tree, make a meal with locally grown vegetables, or save power-the possibilities are endless.
阅读下列短文，根据短文内容填空，在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。
On the first day of my first grade, I stood by the door with butterflies in my stomach. I ________ (voice) my biggest concern to my mother. "How will I make friends?" She handed me advice. "Be yourself." For the past 20 years. I have lived by these words. Soon I will graduate and become part of the real world. Nervously ________ (face) challenges. I know I will whisper to ________ (I) the two simple words "Be yourself".
She looks like any other schoolgirl, fresh-faced and full of life. Sarah Thomas is looking forward to challenge of her new A-level course .But unlike school friends ,16-year-old Sarah is not spending half-term 6 1 (real)Instead, she is earning ＄6500 a day as 6 2 model in New York.
Sarah 6 3 (tell) that she could be Britain's new supermodel ea rn ing a million dollars in the new year. Her father Peter44,want her to give up school to model fulltime But Sarah, 6 4 has taken part in shows along with top models wants 6 5 (prove) that she has brains as well as beauty she is determined to carry on with her 6 6 (educate).
She has turned down several 6 7 (invitation) to star at shows in order to concentrate on her studies After school she plans to take a year off to model full time before going to university to get a degree 6 8 engineering or architecture.
Sarah says, "My dad thinks I should take the offer now. But at the moment, school 6 9 (come) first. I don't want to get too absorbed in modeling. It is 7 0 (certain) fun but the lifestyle is a little unreal. I don't want to have nothing else to fall back on when I can't model my more."
In 1863the first underground passenger railway in the world opened in London. It ran for just under seven kilometers and allowed people to avoid terrible __61__(crowd) on the roads above as they travelled to and ___62__ word. It took three years to complete and was built using an interesting method. This included digging up the road, ____63___(lay) the track and then building a strong roof over___64___ top. When all those had been done, the road surface was replaced.
Steam engines ___65__(use) to pull the carriages and it must have been___66__(fair)unpleasant for the passsengers, with all the smoke and noise. However, the railway quickly proved to be a great success and within six months, more than 25,000 people were using___67__ every day.
Later, engineers ____68___(manage) to construct railways in a system of deep tunnels (隧道）, which became known to the tube. This development was only possible with the ___69___ (introduce) of electric-powered engines and lifts. The central London Railway was one of the most ___70___(success) of these new lines, and was opened in 1900. It had white-painted tunnels and bright red carriages, and proved extremely popular with the public.
There has been a recent trend in the food service industry toward lower fat content and less salt. This trend, which was started by the medical community（医学界） 61 a method of fighting heart disease, has had some unintended side 62 (effect) such as overweight and heart disease-the very thing the medical community was trying to fight.
Fat and salt are very important parts of a diet. They are required 63 (process) the food that we eat, to recover from injury and for several other bodily functions. When fat and salt 64 (remove) from food, the food tastes as if is missing something. As 65 result, people will eat more food to try to make up for that something missing. Even 66 (bad), the amount of fast food that people eat goes up. Fast food 67 (be) full of fat and salt; by 68 (eat) more fast food people will get more salt and fat than they need in their diet.
Having enough fat and salt in your meals will reduce the urge to snack(吃点心) between meals and will improve the taste of your food. However, be 69 (care) not to go to extremes. Like anything, it is possible to have too much of both, 70 is not good for the health.