Unit 5 Into the Unknown Using language 练习-2023-2024学年高二英语外研版（2019）选择性必修第四册

Using language I. 从方框内选择合适的单词补全下列短语，然后用短语的正确形式完成下列句子（每项限用一次）。 run, set, clear, out, throw, waters, from, twice a. steer ________ of     b. ________ for one's life    c. check ________ d. think ________ e. ________ out   f. test the ________ g. shrink ________      h. ________ oneself into 1. We ________________ to find the truth behind the mystery last year. 2. The closed tourist areas are always dangerous, so ________________ them when you pay a visit to this ancient city. 3. Ancient people always ________________ when they came across wild animals. 4. John's been ________________ his work to develop renewable resources in the ocean. 5. Maybe we should ________________ about investing so much money in a project we know so little about. 6. My brother is always curious about everything as he never ________________ stepping into the unknown. 7. The researchers ________________ the experimental results to make sure there were no errors to mislead their judgements. 8. Your ideas about the mysterious event might not be popular with people, so before you start presenting it you should ________________. II. 从括号内选择合适的连接词完成下列句子。 1. It suddenly occurred to him ________ (which, that) he had got lost in the forest. 2. Green forms of energy are ________ (what, how) we need to slow global warming. 3. It is by no means clear ________ (what, how) the scientists will say to explain how Maya civilisation vanished. 4. It doesn't matter ________ (whether, why) you turn right or left at the crossing — both roads lead to the mysterious ruins. 5. The newcomer went to the library the other day and searched for ________ (whatever, wherever) he could find about Stonehenge. 6. Evidence has been found through years of study ________ (that, why) the dinosaurs went extinct about 65 million years ago, after living on Earth for about 165 million years. III. 阅读下面短文并完成其后的问题。 It's human nature to want to uncover the truth about everything. However, there have been a number of occurrences throughou