27.Hummingbirds are birds from the Americas. They are among the smallest of birds. They get their name from the humming sound they make as they fly. Hummingbirds live mostly on nectar (花蜜), a kind of sugar water found deep inside flowers. Drinking nectar almost all day long gives hummingbirds the energy they need to keep their wings beating fast, typically around 3,000 times a minute. Hummingbirds' hearts beat fast too, up to 1,260 times a minute (yours beats about 70). And they breathe (呼吸) about 250 times a minute. So they need a lot of energy. This means that hummingbirds need to eat almost all day long. 它們從一朵花飛到另一朵,很少休息. As a hummingbird feeds, its beak (鳥(niǎo)嘴) and face get covered in pollen (花粉). When the bird visits another flower, some pollen falls off. Hummingbirds help the flowers by spreading pollen around from plant to plant. It's a fair trade: the hummingbird gets a meal and the plant gets to make seeds (種子). For humans, eating sugar all day would lead to serious health problems. Our bodies could not deal with that much sugar. But hummingbirds burn their sugar as quickly as they eat it, so it doesn't become a problem. In fact, hummingbirds don't live on nectar alone. They also eat a lot of insects and spiders. And maybe with enough nectar, the spiders don't taste quite so bad.
(1)回答問(wèn)題: Do hummingbirds get their name from their singing voice?
(2)將文中劃線的漢語(yǔ)句子譯成英語(yǔ).
(3)回答問(wèn)題: How do hummingbirds help the plants to make seeds?
(4)將文中劃線的英語(yǔ)句子譯成漢語(yǔ).
(5)回答問(wèn)題: What does the underlined word "it" refer to?
28.中學(xué)生應(yīng)當(dāng)具備基本的自我保護(hù)能力.為進(jìn)一步增強(qiáng)學(xué)生的安全意識(shí),提高大家的自我保護(hù)能力,你校決定開(kāi)展以"安全"為主題的英語(yǔ)演講比賽.請(qǐng)你根據(jù)以下要點(diǎn)提示,以How to keep safe為題寫一篇演講稿. 要點(diǎn)提示: 1. 慎重交友; 2. 遇險(xiǎn)報(bào)警; 3. 安全飲食; 4. 其他. 注意: 1. 內(nèi)容必須包括所給的全部要點(diǎn),可適當(dāng)發(fā)揮; 2. 表達(dá)清楚,語(yǔ)句通順,書寫規(guī)范,80詞左右(開(kāi)頭和結(jié)尾已給出,不計(jì)入總詞數(shù)). How to keep safe As middle school students, we should always keep safety in mind._____ In short, safety must come first!