(练习)unit5 Period Two-【提分教练】2022-2023学年新教材高中英语选择性必修第二册(外研版2019)

课时达标训练(十四)　Period Two Ⅰ. 单句语法填空 1. It is well­known that elephants are native to Africa and Asia. 2. Whether you've heard (hear) of them or not, the landscape and cultural heritage of these destinations would surely be worth experiencing. 3. He thought it an honour to be invited to the wedding. 4. The man required that more sugar should be added (add) to his coffee. 5. The tiger was accidentally released from its cage, which caused chaos. 6. The local government found it necessary that they should take measures to protect the rare birds. 7. Misunderstandings and culture shock appeared among exchange students because they have different greeting (greet) customs. 8. As we know, the earth is becoming warmer and warmer due to the global climate change. 9. Do your students think it beneficial to take online classes? Ⅱ. 完形填空 Wildlife has been greatly threatened in the modern age. There are species (物种) that are 　1　 every day. The white­naped crane is a typical example. So scientists are trying their best to 　2　 the species from going out of existence. Chris and Tim work at a zoo, helping endangered cranes with their reproduction. Emma, a female crane, has been in their 　3　 since she arrived in 2004. Born at an international crane foundation, Emma was 　4　 by human caretakers. This led to an unexpected 　5　， though she had a wonderful time there. Emma had 　6　 taken herself as a crane and become deeply attached to humans. She 　7　 to live with male cranes, and even had a reputation for killing some of them, which made it 　8　 for her to become a mother. 　9　， the two zookeepers didn't want to see the extinction (灭绝) of this precious species. With their patience and efforts, they successfully developed a combination of artificial breeding (人工繁殖) and natural reproduction. This 　10　 Emma to give birth to five baby cranes. The two keepers are proud of their productive work. But before they can be assured, more efforts must be made, because the population of the crane in the wil