我们有必要每天记日记。(It is …)
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你应该对爷爷有耐心。(patient)
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中国以其优秀的传统文化而闻名。(be famous for)
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垃圾对我们的环境产生危害。(do harm to)
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阅读下面的短文,用括号内所给单词的适当形式填空，必要时可加助动词。
The third long March-5 rocket, China's largest carrier rocket was successfully launched (发射) from Wenchang Space Launch Center in Hainan Province on Dec. 27, 2019. The rocket 1.(name) Long March-5 Y3. It left the ground from the launch center at 8:45 pm, carrying the Shijian-20 satellite, the 2.(heavy) and most modern communications satellite of China. About 2,220 seconds later, the satellite was sent into 3.(it) planned orbit(轨道) .
The Long March-5 rocket 4. (make) the first flight on Nov. 3, 2016 from Wenchang. However, the 5.(two) largest rocket, Long March-5 Y2, experienced a failure on July 2,2017. 6. (Compare) with Long March-5 Y2, the new rocket Long March-5 Y3 has shown more than 200 technological improvements.
Qu Yiguang, director of the Long March-5 Y3 research team, said, "Under great pressure, the research team has put all the efforts into the rocket over the past two years. We are very 7. (pride) that we can take part in the development of the Long March-5 rocket, which shows the highest level of China's rocket technology. "After over two years of 8. (silent) in Wenchang, the Chinese welcomed the return of the "king" with excitement.
Since the Long March-1 sent China's frist satellite into space 50 years ago, the Long March series rockets 9. (complete) 323 flights. Over the past years, China's rocket technology has been greatly improved. With the success of the Long March-5 Y3 rocket, China 10.(see) a busy year in space activities next year.
阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
According to this year's Living Planet Report by the WWF in October, populations of animals _______ mammals (哺乳动物), birds and fish have fallen by about 60 percent since 1970. This is mainly _______ human activities. Climate change, habitat (栖息地) loss, _______ and hunting are some of the biggest causes.
Humans should take this problem _______ because it can affect(影响) us as well.
According to a 2017 study, 75 percent of flying insects have died over the last 30 years. Insects help _______ produce new seeds (种子). Without _______ systems(生态系统) will break down.
The report _______ shows that Earth has lost about half of its shallow water coral in the past 30 years. In addition, 20 percent of the Amazon rainforest has _______ in just 50 years.
All over the world, people are cutting down trees, using too much water from rivers and filling oceans with plastic. This problem must be solved _______ possible. ________ countries should work together to find ways of solving it.
1.A.except B.including C.within D.without
2.A.because of B.thanks to C.instead of D.in spite of
3.A.accidents B.technology C.loneliness D.pollution
4.A.quietly B.seriously C.suddenly D.strongly
5.A.planets B.animals C.plants D.machines
6.A.them B.it C.him D.us
7.A.already B.once C.also D.either
8.A.increased B.introduced C.spread D.disappeared
9.A.as far as B.as soon as C.as good as D.as long as
10.A.Different B.Developing C.Western D.Foreign
