moea_joint
113年
英文
第 comp38 題
📖 題組：
The Great Migration is the largest herd movement of animals on the planet. The numbers are astonishing: over 1.5 million wildebeests, zebras, and antelopes move in a constant cycle through the Serengeti-Mara ecosystem in search of nutritious grass and water. Guided by survival instinct, each wildebeest will cover 800 to 1,000 km on its individual journey along age-old migration routes. Hungry predators, including lions, leopards, cheetahs, hyenas, wild dogs, and crocodiles, ensure the strongest survive in this natural spectacle. This is also known as ‘the greatest show on Earth.’ The animals travel from the Ngorongoro Conservation Area in southern Serengeti, Tanzania, through the Serengeti, into the Masai Mara in Kenya, and then back again. The journey is beset with danger: young calves are snatched by predators, the slow ones are brought down by prides of lion, brave beasts break legs on steep river slopes, crocodiles take their share of the stragglers, and the weak and exhausted drown. As for the three major animals of the migrant grazers, they have different grass-eating habits: as one group eats the top of the tallest grass, the next group will eat away some of the medium-height grass until finally it is almost completely eaten, and the herds move on. This means each group sticks to its kind with only a tiny overlap in their distributions. The grasses of the plains have the highest protein content throughout the Serengeti and are also high in calcium. It is unclear how the wildebeests know which way to go. However, it is generally believed that their journey is dictated primarily by their response to the weather. They probably follow the rains and new grass growth. Some experts believe the animals react to lightning and thunderstorms in the distance. It has even been suggested that wildebeest can locate rain more than 50 km away.
The Great Migration is the largest herd movement of animals on the planet. The numbers are astonishing: over 1.5 million wildebeests, zebras, and antelopes move in a constant cycle through the Serengeti-Mara ecosystem in search of nutritious grass and water. Guided by survival instinct, each wildebeest will cover 800 to 1,000 km on its individual journey along age-old migration routes. Hungry predators, including lions, leopards, cheetahs, hyenas, wild dogs, and crocodiles, ensure the strongest survive in this natural spectacle. This is also known as ‘the greatest show on Earth.’ The animals travel from the Ngorongoro Conservation Area in southern Serengeti, Tanzania, through the Serengeti, into the Masai Mara in Kenya, and then back again. The journey is beset with danger: young calves are snatched by predators, the slow ones are brought down by prides of lion, brave beasts break legs on steep river slopes, crocodiles take their share of the stragglers, and the weak and exhausted drown. As for the three major animals of the migrant grazers, they have different grass-eating habits: as one group eats the top of the tallest grass, the next group will eat away some of the medium-height grass until finally it is almost completely eaten, and the herds move on. This means each group sticks to its kind with only a tiny overlap in their distributions. The grasses of the plains have the highest protein content throughout the Serengeti and are also high in calcium. It is unclear how the wildebeests know which way to go. However, it is generally believed that their journey is dictated primarily by their response to the weather. They probably follow the rains and new grass growth. Some experts believe the animals react to lightning and thunderstorms in the distance. It has even been suggested that wildebeest can locate rain more than 50 km away.
Which of the following is closest in meaning to the word “dictated” in Paragraph 4?
- A permitted
- B directed
- C teased
- D fastened
思路引導 VIP
請重新閱讀該單字所在的句子：這句話在探討動物「如何知道該往哪裡走」。如果天氣是影響牠們前進的關鍵因素，那麼天氣對這趟「旅程」扮演了什麼樣的角色？是給予許可、給予指引、還是將其束縛住呢？
🤖
AI 詳解
AI 專屬家教
很高興看到你準確地掌握了這裡的詞彙運用！你能從文章脈絡中辨識出這個詞的真意，代表你對上下文的邏輯推導相當敏銳。
語境中的語意延伸
在第四段中，作者探討牛羚如何決定遷徙的方向。文中提到「牠們的旅程主要由對天氣的反應所 dictated」，這裡的 dictated 並非指口述或命令，而是指一種「決定性」或「支配性」的力量。因為天氣（雨水、青草生長）決定了牠們前進的方向，所以這裡選擇 (B) directed（引導、指引）最為貼切，完美呼應了前一句提到的「如何知道該往哪裡走」。
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