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Thư viện Đề thi - Trắc nghiệm - Tài liệu học tập Miễn phí ĐỀ THI GIỮA KÌ LỚP 12 MƠN TIẾNG ANH CĨ ĐÁP ÁN NĂM 2021 - 2022 Choose the word which has the underlined part pronounced differently from the rest A grasses B stretches C comprises D potatoes A lie B wide C circle D comprise A picture B action C question D future A swallow B below C slowly D allow Choose the correct answer to complete the sentence A / an _ species is a population of an organism which is at risk of becoming extinct A dangerous B endanger C endangered D endangerment Only a few of the many species at risk of extinction actually make it to the lists and obtain legal A protect B protection C protective D protector Probability of extinction depends _ both the population size and fine details of the population demography A on B in C from D for Trang chủ: https://vndoc.com/ | Email hỗ trợ: hotro@vndoc.com | Hotline: 024 2242 6188 Thư viện Đề thi - Trắc nghiệm - Tài liệu học tập Miễn phí Many modern medicines are derived _ plants and animals A on B for C from D in 15,589 species (7,266 animal species and 8,323 plant species) are now considered risk _ extinction A at / of B on / in C for / with D in / at Sometimes it is to find suitable books for our children A difficult B difficulty C difficultly D difficulties A book may be evaluated by a reader or professional writer to create a book A review B reviewing C reviewer D reviewed As for me, I consider reading important part of life A an / Ø B the / a C Ø / the D an / a Choose the best answers to fill in the blanks: The current global extinction rate is (1) _ at about 20,000 species per year, exponentially greater than the background extinction rate Many biologists believe that we are in the middle of the greatest mass extinction episode since the (2) _ of the dinosaurs 65 million years ago From what is known about present-day populations and from evolutionary theory, the change in either the physical (3) _ the biological environment is the key to extinction However, the vulnerability of a species depends (4) _ a wide variety of factors, such as Trang chủ: https://vndoc.com/ | Email hỗ trợ: hotro@vndoc.com | Hotline: 024 2242 6188 Thư viện Đề thi - Trắc nghiệm - Tài liệu học tập Miễn phí its total population size, geographical distribution, reproductive ability, ecological relations with other species, and genetic characteristics For example, more emphasis is put on the greater vulnerability of species that reproduce slowly as contrasted with those that reproduce (5) _ Other factors, such as food-plant specialization, may make many fast reproducers more vulnerable than species that reproduce more slowly No matter how fast an insect species that depends on a certain plan can reproduce; it will still go extinct if that plant's habitat is destroyed It has been estimated that about one half billion species have lived at one time or another, and today's existing species are only 2% of those that have ever evolveD The other 98% have either died out or evolved into something sufficiently different to be called a new species A increased B distributed C estimated D added A disappearance B remain C disposal D limitation A so B and C nor D or A in B on C at D about A rapidly B cheaply C cheerfully D lastly ĐÁP ÁN Choose the word which has the underlined part pronounced differently from the rest - D; - C; - B; - D; Choose the correct answer to complete the sentence Trang chủ: https://vndoc.com/ | Email hỗ trợ: hotro@vndoc.com | Hotline: 024 2242 6188 Thư viện Đề thi - Trắc nghiệm - Tài liệu học tập Miễn phí - C; - B; - A; - C; - A; - A; - A; - A; Choose the best answers to fill in the blanks: - C; - A; - D; - B; - A; Mời bạn đọc tham khảo thêm tài liệu Tiếng Anh lớp 12 đây: Bài tập Tiếng Anh lớp 12 theo Unit: https://vndoc.com/tieng-anh-lop-12 Bài tập Tiếng Anh lớp 12 nâng cao: https://vndoc.com/tieng-anh-pho-thong-lop-12 Bài tập trắc nghiệm trực tuyến Tiếng Anh lớp 12: https://vndoc.com/test/mon-tieng-anh-lop12 Trang chủ: https://vndoc.com/ | Email hỗ trợ: hotro@vndoc.com | Hotline: 024 2242 6188 ... thêm tài liệu Tiếng Anh lớp 12 đây: Bài tập Tiếng Anh lớp 12 theo Unit: https:/ /vndoc. com/ tieng -anh- lop- 12 Bài tập Tiếng Anh lớp 12 nâng cao: https:/ /vndoc. com/ tieng -anh- pho-thong-lop- 12 Bài tập... tập trắc nghiệm trực tuyến Tiếng Anh lớp 12: https:/ /vndoc. com/ test/mon-tieng -anh- lop 12 Trang chủ: https:/ /vndoc. com/ | Email hỗ trợ: hotro @vndoc. com | Hotline: 024 22 42 6188 ... B; - D; Choose the correct answer to complete the sentence Trang chủ: https:/ /vndoc. com/ | Email hỗ trợ: hotro @vndoc. com | Hotline: 024 22 42 6188 Thư viện Đề thi - Trắc nghiệm - Tài liệu học tập