Unit4 Amazing plants and animals语法填空专项训练100题-2025-2026学年人教版英语八年级上册

人教版八年级上册 Unit4 Amazing plants and animals语法填空专项训练（含解析） 1. The blue whale is the ______ (large) and ______ (heavy) animal on earth. It can weigh as much as 200 tons. 1. The cheetah runs the ______ (fast) among all the land animals, with a speed of up to 112 km/h. 1. Moss is one of the ______ (old) plants on earth. It appeared around 470 million years ago. 1. The redwood tree is the ______ (tall) tree in the world. Some can grow over 100 meters tall. 1. Bamboo is one of the ______ (fast - growing) plants. Some bamboo can grow almost one metre in one day. 1. Pandas are ______ (love) by people all over the world. They mainly feed on bamboo. 1. Bees are one of the ______ (important) animals for the growth of many plants because of their work in pollination. 1. The number of bees is ______ (drop), and scientists are really worried about it. 1. Without bees' work, about 80 per cent of the plants in the world cannot ______ (grow). 1. People use bamboo to build houses, make tools and ______ (instrument). 1. The polar bear's fur is very thick, which helps it ______ (keep) warm in the cold Arctic. 1. The frog can live both on ______ (land) and in water, so it's an important part of both ecosystems. 1. The elephant is the largest ______ (land) animal in the world. Its strength is amazing. 1. The giraffe has the ______ (long) neck among animals, which helps it reach leaves on tall trees. 1. The spider spins a web to catch ______ (insect) for food. 1. The snake moves by crawling on its ______ (stomach). 1. The bird uses its wings ______ (fly) in the sky. 1. The kangaroo can jump very far because of its strong ______ (leg). 1. The koala lives in Australia and mainly feeds on the leaves of ______ (eucalyptus) trees. 1. The penguin lives in the Antarctic and is a good ______ (swim). 1. The octopus has eight ______ (tentacle) which it uses for hunting and moving. 1. The dolphin is very smart and is known for its ______ (friend) to humans. 1. The shark is a very ______ (danger) animal in the ocean. 1. The wolf lives in the forest and usually hunts in ______ (group). 1. The deer is a gentle animal and is good at ______ (run) to escape from danger. 1. The monkey is very ______ (active) and likes to jump from tree to tree. 1. The zebra has black and white ______ (stripe) which help it hide in the grass. 1. The peacock has the ______ (colorful) tail among birds. When it spreads its tail, it's really beautiful. 1. The butterfly goes through a complete ______ (metamorphosis) from a caterpillar to an adult. 1. The starfish can regenerate its ______ (arm) when they are damaged. 1. The sunflower always faces the sun, which is an amazing ______ (behave). 1. The willow tree has long and ______ (flexible) branches that sway in the wind. 1. The maple tree's leaves turn red in autumn, making it one of the most ______ (beauty) trees at that time. 1. The cactus can survive in the desert because it can store a lot of ______ (water) in its body. 1. The lotus grows in the mud but remains ______ (pure) and beautiful. 1. The orchid is a very ______ (rare) and beautiful flower. 1. The fern is a kind of plant that reproduces by ______ (spore). 1. The pine tree can live in cold and harsh ______ (condition). 1. The cedar tree is often used in making ______ (furniture) because of its good quality wood. 1. The coconut tree grows near the sea and its fruit can float on ______ (water). 1. The eucalyptus tree is the main food source for ______ (koala). 1. The rose is one of the most ______ (popular) flowers in the world. 1. The lily is known for its ______ (elegant) shape and sweet smell. 1. The daisy is a simple but ______ (charm) flower. 1. The tulip comes in many different ______ (color) and is very popular in Holland. 1. The bamboo forest provides a home for many ______ (animal), especially pandas. 1. The rainforest is home to the ______ (diverse) range of plants and animals in the world. 1. The desert has some unique plants and animals that have adapted to the ______ (dry) environment. 1. The wetland is an important ecosystem for many ______ (migrate) birds. 1. The ocean is full of amazing plants and animals, some of which are still ______ (discover). 1. The coral reef is a very important ______ (ecology) system in the ocean. 1. The seagrass meadow provides food and shelter for many ______ (marine) animals. 1. The mangrove forest can protect the coastline from ______ (erode). 1. The alpine region has some special plants that can survive in the cold and ______ (high) altitude environment. 1. The tundra is a cold and treeless region with unique plants and animals that have adapted to the ______ (harsh) conditions. 1. The grassland is home to many herbivores like ______ (antelope) and zebras. 1. The forest is not only home to animals but also plays an important role in ______ (regulate) the climate. 1. The meadow is full of colorful flowers in spring, making it a ______ (delight) sight. 1. The marsh is a wetland area with soft, ______ (mud) soil. 1. The pond is a small body of water that can support a variety of ______ (aquatic) plants and animals. 1. The river is an important source of water for many plants and animals along its ______ (bank). 1. The lake is a large body of water that can have its own unique ecosystem with different ______ (species) of fish and plants. 1. The waterfall not only looks beautiful but also provides a special environment for some ______ (organism). 1. The spring is a source of fresh water and is often surrounded by ______ (lush) vegetation. 1. The glacier is a large mass of ice that is slowly ______ (move) and can shape the land. 1. The mountain is a natural habitat for many plants and animals that have adapted to the ______ (tough) living conditions. 1. The valley is a low - lying area between mountains, usually with fertile soil for ______ (agriculture). 1. The plateau is a high - flat area with its own unique climate and ______ (flora) and fauna. 1. The island is a piece of land surrounded by water and can have a distinct ______ (ecosystem). 1. The beach is a place where many seabirds and crabs live, and it's also a popular ______ (recreation) area for humans. 1. The estuary is where the river meets the sea, creating a special environment for both ______ (freshwater) and marine organisms. 1. The canyon is a deep and narrow valley with steep sides, often with unique rock formations and ______ (habitat) for some animals. 1. The cave is a natural underground hollow that can be home to bats and some unique ______ (invertebrate) species. 1. The cliff is a steep rock face, and some birds build their nests on the ______ (edge) of it. 1. The sand dune is a hill of sand formed by the wind, and some plants can grow on the ______ (surface) of it. 1. The meerkat is a small mammal that lives in groups in the ______ (desert) of Africa. 1. The armadillo has a hard shell that protects it from ______ (predator). 1. The sloth moves very ______ (slow) and spends most of its time in trees. 1. The raccoon is a clever animal that is known for its ability to ______ (adapt) to different environments. 1. The skunk can spray a strong - smelling liquid to protect itself from ______ (attack). 1. The hedgehog rolls into a ball when it feels ______ (threaten). 1. The bat is the only mammal that can ______ (true) fly. 1. The hummingbird is the smallest bird in the world and can hover in the air by ______ (beat) its wings very fast. 1. The ostrich is the largest bird in the world, but it cannot ______ (flight). 1. The woodpecker uses its strong beak to ______ (drill) holes in trees to find insects. 1. The parrot is known for its ability to ______ (imitate) human speech. 1. The eagle has very sharp eyesight and is a powerful ______ (hunt). 1. The owl is a nocturnal bird that can see well in the ______ (dark). 1. The seagull is a common bird near the sea and is good at ______ (catch) fish. 1. The flamingo has long legs and a unique - shaped bill, and its pink color comes from the ______ (crustacean) it eats. 1. The platypus is a very ______ (peculiar) animal. It lays eggs but also nurses its young with milk. 1. The echidna is another egg - laying mammal and has spines on its body for ______ (defend). 1. The jellyfish is a soft - bodied ______ (marine) animal that has tentacles with stinging cells. 1. The sea turtle can live for a long time and travels long distances in the ocean to ______ (lay) eggs. 1. The lobster has large claws that it uses for ______ (defend) and catching food. 1. The crab can walk sideways and is an important part of the ______ (coastal) ecosystem. 1. The snail moves very slowly with the help of a ______ (mucus) - covered foot. 1. The earthworm is important for the soil as it helps to ______ (aerate) the soil. 1. The mosquito is a small insect that can transmit ______ (disease) like malaria. 1. The dragonfly is a fast - flying insect with large, ______ (transparent) wings. 答案解析 1. largest; heaviest 解析：句中出现范围限定 “on earth”，需用形容词最高级。“large” 最高级为 “largest”，“heavy” 最高级为 “heaviest”。 2. fastest 解析：“among all the land animals” 表示范围，用 “fast” 的最高级 “fastest”。 3. oldest 解析：“one of the + 形容词最高级 + 名词复数” 为固定结构，“old” 的最高级是 “oldest”。 4. tallest 解析：“in the world” 提示用最高级，“tall” 的最高级为 “tallest”。 5. fastest-growing 解析：“one of the + 最高级” 结构，“fast-growing” 的最高级为 “fastest-growing”。 6. loved 解析：熊猫是 “被喜爱” 的对象，用被动语态，“love” 的过去分词为 “loved”。 7. most important 解析：“one of the + 最高级”，多音节词 “important” 的最高级前加 “most”。 8. dropping 解析：“is” 后接现在分词构成现在进行时，“drop” 的现在分词为 “dropping”。 9. grow 解析：情态动词 “cannot” 后接动词原形。 10. instruments 解析：“and” 连接并列成分，“tools” 为复数，“instrument” 也用复数 “instruments”。 11. (to) keep 解析：“help sb. (to) do sth.” 为固定搭配，不定式符号 “to” 可省略。 12. land 解析：“on land” 表示 “在陆地上”，为固定短语，“land” 此处为不可数名词。 13. land 解析：“land animal” 表示 “陆地动物”，用名词 “land” 作定语。 14. longest 解析：“among animals” 提示用最高级，“long” 的最高级为 “longest”。 15. insects 解析：“insect” 为可数名词，此处表泛指，用复数 “insects”。 16. stomachs 解析：蛇的腹部不止一个（从生理结构和语境看），用 “stomach” 的复数 “stomachs”。 17. to fly 解析：“use sth. to do sth.” 表示 “用某物做某事”，用不定式作目的状语。 18. legs 解析：袋鼠有两条腿，用 “leg” 的复数 “legs”。 19. eucalyptus 解析：“eucalyptus trees” 表示 “桉树”，“eucalyptus” 作定语用单数形式。 20. swimmer 解析：不定冠词 “a” 后接名词，“swim” 的名词形式为 “swimmer”（游泳者）。 21. tentacles 解析：“eight” 后接可数名词复数，“tentacle” 的复数为 “tentacles”。 22. friendliness 解析：形容词性物主代词 “its” 后接名词，“friend” 的名词形式为 “friendliness”（友好）。 23. dangerous 解析：修饰名词 “animal” 需用形容词，“danger” 的形容词为 “dangerous”。 24. groups 解析：“in groups” 表示 “成群地”，为固定短语，用复数 “groups”。 25. running 解析：“be good at doing sth.” 中，“at” 为介词，后接动名词 “running”。 26. active 解析：系动词 “is” 后接形容词作表语，“active” 为形容词原形。 27. stripes 解析：斑马的条纹不止一条，用 “stripe” 的复数 “stripes”。 28. most colorful 解析：“among birds” 提示用最高级，多音节词 “colorful” 的最高级为 “most colorful”。 29. metamorphosis 解析：不定冠词 “a” 后接名词单数，“metamorphosis” 为不可数名词（此处指完整的变态过程）。 30. arms 解析：海星的 “臂” 不止一条，用 “arm” 的复数 “arms”。 31. behavior 解析：形容词 “amazing” 后接名词，“behave” 的名词形式为 “behavior”。 32. flexible 解析：and 连接并列形容词，“flexible” 与 “long” 并列作定语。 33. beautiful 解析：“most + 形容词” 构成最高级，“beauty” 的形容词为 “beautiful”。 34. water 解析：“water” 为不可数名词，此处表示 “水”，用原形。 35. pure 解析：系动词 “remains” 后接形容词作表语，“pure” 为形容词原形。 36. rare 解析：形容词 “rare” 修饰名词 “flower”，用原形。 37. spores 解析：“by” 后接名词，“spore” 为可数名词，用复数 “spores” 表泛指。 38. conditions 解析：“harsh conditions” 表示 “恶劣的环境”，常用复数 “conditions”。 39. furniture 解析：“furniture” 为不可数名词，无复数形式。 40. water 解析：“on water” 表示 “在水上”，“water” 为不可数名词。 41. koalas 解析：“koala” 为可数名词，此处表泛指，用复数 “koalas”。 42. popular 解析：“one of the most + 形容词” 中，用形容词原级 “popular”。 43. elegant 解析：形容词性物主代词 “its” 后接名词，但此处 “elegant” 修饰 “shape”，实际为形容词作定语（原句结构为 “its elegant shape”）。 44. charming 解析：连词 “but” 连接并列形容词，“charm” 的形容词为 “charming”。 45. colors 解析：“many different” 后接可数名词复数，“color” 的复数为 “colors”。 46. animals 解析：“many” 后接可数名词复数，“animal” 的复数为 “animals”。 47. most diverse 解析：“in the world” 提示用最高级，“diverse” 的最高级为 “most diverse”。 48. dry 解析：形容词 “dry” 修饰名词 “environment”，用原形。 49. migrating 解析：“migratory birds” 表示 “候鸟”，此处用 “migrate” 的动名词形式 “migrating” 作定语（也可用形容词 “migratory”，但根据语境动名词更合适）。 50. undiscovered 解析：句意为 “有些仍未被发现”，用被动语态的否定形式 “undiscovered”。 51. ecological 解析：修饰名词 “system” 需用形容词，“ecology” 的形容词为 “ecological”。 52. marine 解析：“marine animals” 表示 “海洋动物”，“marine” 为形容词原形。 53. erosion 解析：介词 “from” 后接名词，“erode” 的名词形式为 “erosion”。 54. high 解析：形容词 “high” 修饰名词 “altitude”，用原形。 55. harsh 解析：形容词 “harsh” 修饰名词 “conditions”，用原形。 56. antelopes 解析：“like” 后接名词复数表泛指，“antelope” 的复数为 “antelopes”。 57. regulating 解析：“play a role in doing sth.” 中，“in” 后接动名词 “regulating”。 58. delightful 解析：修饰名词 “sight” 需用形容词，“delight” 的形容词为 “delightful”。 59. muddy 解析：修饰名词 “soil” 需用形容词，“mud” 的形容词为 “muddy”。 60. aquatic 解析：“aquatic plants and animals” 表示 “水生动植物”，“aquatic” 为形容词原形。 61. banks 解析：河流有两岸，用 “bank” 的复数 “banks”。 62. species 解析：“species” 单复数同形，此处表示 “不同物种”，用原形。 63. organisms 解析：“some” 后接可数名词复数，“organism” 的复数为 “organisms”。 64. lush 解析：形容词 “lush” 修饰名词 “vegetation”，用原形。 65. moving 解析：“is slowly moving” 构成现在进行时，用动名词 “moving”。 66. tough 解析：形容词 “tough” 修饰名词 “conditions”，用原形。 67. agriculture 解析：介词 “for” 后接名词，“agriculture” 为不可数名词。 68. flora 解析：“flora and fauna” 表示 “动植物群”，“flora” 为不可数名词。 69. ecosystem 解析：不定冠词 “a” 后接名词单数，“ecosystem” 为可数名词单数。 70. recreational 解析：修饰名词 “area” 需用形容词，“recreation” 的形容词为 “recreational”。 71. freshwater 解析：“freshwater organisms” 表示 “淡水生物”，“freshwater” 为形容词原形。 72. habitats 解析：“unique rock formations and habitats” 为并列结构，用 “habitat” 的复数 “habitats”。 73. invertebrate 解析：形容词 “invertebrate” 修饰名词 “species”，用原形。 74. edge 解析：“on the edge of” 表示 “在…… 边缘”，用单数 “edge”（指悬崖的边缘）。 75. surface 解析：“on the surface of” 表示 “在…… 表面”，用单数 “surface”（指沙丘表面）。 76. deserts 解析：非洲的沙漠不止一处，用 “desert” 的复数 “deserts”。 77. predators 解析：“predator” 为可数名词，此处表泛指，用复数 “predators”。 78. slowly 解析：修饰动词 “moves” 需用副词，“slow” 的副词为 “slowly”。 79. adapt 解析：“ability to do sth.” 中，不定式符号 “to” 后接动词原形 “adapt”。 80. attacks 解析：“protect itself from” 后接名词，“attack” 的复数 “attacks” 表泛指。 81. threatened 解析：“feel threatened” 表示 “感到受威胁”，用过去分词作表语。 82. truly 解析：修饰动词 “fly” 需用副词，“true” 的副词为 “truly”。 83. beating 解析：“by” 为介词，后接动名词 “beating”。 84. fly 解析：情态动词 “cannot” 后接动词原形，“flight” 的动词形式为 “fly”。 85. drill 解析：“use sth. to do sth.” 中，不定式符号 “to” 后接动词原形 “drill”。 86. imitate 解析：“ability to do sth.” 中，用动词原形 “imitate”。 87. hunter 解析：不定冠词 “a” 后接名词，“hunt” 的名词形式为 “hunter”（猎人）。 88. dark 解析：“in the dark” 表示 “在黑暗中”，为固定短语。 89. catching 解析：“be good at doing sth.” 中，“at” 后接动名词 “catching”。 90. crustaceans 解析：“crustacean” 为可数名词，此处表泛指，用复数 “crustaceans”。 91. peculiar 解析：系动词 “is” 后接形容词作表语，“peculiar” 为形容词原形。 92. defense 解析：介词 “for” 后接名词，“defend” 的名词形式为 “defense”。 93. marine 解析：“marine animal” 表示 “海洋动物”，“marine” 为形容词原形。 94. lay 解析：不定式符号 “to” 后接动词原形 “lay”（产卵）。 95. defense 解析：介词 “for” 后接名词，“defend” 的名词形式为 “defense”。 96. coastal 解析：修饰名词 “ecosystem” 需用形容词，“coastal” 为形容词原形。 97. mucus 解析：“mucus-covered” 表示 “被黏液覆盖的”，“mucus” 为不可数名词。 98. aerate 解析：“help to do sth.” 中，不定式符号 “to” 后接动词原形 “aerate”。 99. diseases 解析：“disease” 为可数名词，此处表泛指（如疟疾等疾病），用复数 “diseases”。 100. transparent 解析：形容词 “transparent” 修饰名词 “wings”，用原形。 学科网（北京）股份有限公司 $$