Title TEST FOR Unit 7. Ecological Systems (30 câu - file word có giải).docx ✅

A. disturb B. release C. deter D. endanger Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined bold word(s) in each of the following questions. Question 20. Controlling and even preventing the introduction of foreign species are essential for the balance of the ecosystem. A. extinct B. illegal C. freezing D. native Read the following passage and mark the letter A, B, C, or D to choose the word or phrase that best fits each of the numbered blanks from 21 to 25. Some Buddhists have a long-standing tradition of freeing animals from captivity. It is regarded by these people as a kind action which could (21) _______ what will happen to them in their future lives. However, according to some environmentalists, this practice also poses (22) _______ to local wildlife, and the government should be urged to ban it. The improper (23) _______ of animals can have negative impacts on the living environment in local areas. It can help quickly spread foreign species into the native environment. Many people have released poisonous snakes and red-eared turtles, which can (24) _______ quickly, eat other species or even destroy the local ecosystems. In addition, some species may die after being released. Wild birds, for example, fall into a cycle of being caught and released, and then being caught again, causing the birds to die slowly. Many species of turtles like mountain turtles are often released into pagoda ponds, but they cannot survive a week in the new environment, and some (25) _______ die within three days. (Adapted from English Workbook 11 – iLearn Smart World) Question 21. A. refuse B. confuse C. endanger D. influence Question 22. A. mark B. harm C. desert D. grade Question 23. A. release B. habit C. model D. lifestyle Question 24. A. distract B. resolve C. reproduce D. recover Question 25.