1、【语法填空】Every autumn, millions of the North American monarch butterflies begin a long and difficult journey. Somehow they manage to travel around 4, 000 kilometres south and find their way to California or Mexico. However, until recently no one 1._ (know) how they did this.A team of scientists 2._ (le
2、ad) by Professor Eli Shlizerman has now found the answer. They have found out that the monarch is able to tell the time of day. It uses its eyes 3._ (measure) the position of the sun. These two pieces of information allow the butterfly 4._ (determine) the way to go. Finally, it manages to reach the
3、places where it will spend the winter.5._ (sad), human activity is the main reason 6._the number of monarch butterflies is falling. In many of the places where the butterfly can be found, people are destroying the 7._ (nature) environment. They cut 8._ trees and use chemicals that kill the plants th
4、at monarch caterpillars eat.The research on the monarchs behaviour has however led to a greater 9._ (aware) of this creature. People have been working together to record its migration and make sure that there are enough plants for it to feed on. If this works, there may come a time when 10._ number
5、of monarch butterflies increases once again. 【参考答案】1.knew 2. led 3. to measure 4.to determine 5. Sadly6.why 7. natural 8. down 9.awareness 10.the【随堂练习1】1. 选出下列句子中画线部分的英语释义a. look for b. try c. ask for d. find out How can you seek help from the Writing Centre? (2014天津) A company whose profits from ho
6、me markets are declining（减少）may seek opportunities abroad. (2014山东) We sought out Karen and told her of her success. Local schools are seeking to reduce the dropout rate.【参考答案】C A D B2. 在空白处填入1个适当的单词或括号内单词的正确形式 On a hot summer day in last August, I _ (seek) shade and a cool drink at a waterfront caf
7、. Some businesses only seek _ (earn) enough to cover their operating costs. (2013 全国) Unluckily, they sought in vain _ somewhere to shelter. A job _ (seek) is an unemployed person who is trying to get a job.【参考答案】 sought to earn for seeker3. 根据所给汉语，用适当的词块完成下列句子。 The company _ (正试图提高) the quality of
8、products. The government _ (正在寻求解决办法) to the problem of water shortage. From this experience I have learnt that questioning can serve as a bridge that helps us to _. (寻求真理)【参考答案】 is seeking to improve is seeking for a solution seek the truth【语法填空】As a nature 1._ (photograph), I always have to go on
9、working outside regardless of weather. My favourite place to take photos is Yellowstone National Park, which is probably best known for its bears. Despite a weight of up to 300 kilograms, they can run 2._ a speed of around 64 kilometres per hour and are also excellent swimmers.Last spring in Yellows
10、tone, I followed a path 3._ took me through a dark forest. The view was breathtaking. An eagle flew over the snowcapped mountains, which were reflected in the still lake below. While I was concentrating on photographing this 4._scene, I suddenly had a feeling that I was being watched. 5._ (slow), an
11、d with the camera still 6._ (hold) to my eye, I turned.and froze. Only metres away from me was a bear. With water falling off its thick, brown hair, the bear stared back at me. My legs started shaking. Somehow, I forced my finger 7._ (press) the button. A second later, the bear turned and ran back i
12、nto the forest. My most frightening but magical experience 8._ (capture) forever in a single image now.From time to time I look at the photo as a 9._ (remind) to show respect to all animals. It is after all we10._ are the visitors to their world.【参考答案】1. photographer 2. at 3. which/that 4. amazing 5. Slowly6. held 7. to press 8.was captured 9. reminder 10.who/that
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