北師大版高中英語(yǔ)選修七unit21humanbiology能力提升-wenkub.com
2025-11-19 00:03 本頁(yè)面
【正文】 所以 A 項(xiàng)正確。 8． 【解析】 選 A。 D 項(xiàng) women 改為 men 則正確。 6． 【解析】 選 C。詞義猜測(cè)題。推理判斷題。 3.【解析】 選 B?？捎门懦?。詞義猜測(cè)題。 15.【解析】 選 B。句意：你必須努力忘掉這些不好的事情的記憶。 equal 等于。根據(jù)句意選 D。 12.【解析】 選 D。故選 B。 10.【解析】 選 B。 tolerate 容忍，忍受； accustom 習(xí)慣于； understand 理解； cover 覆蓋。 rob sb. of sth. 搶某人某物， the old lady 與 rob 之間存在邏輯上的動(dòng)賓關(guān)系，故用不定式的被動(dòng)式，且被搶動(dòng)作發(fā)生在 claim(宣稱 )之前，故用不定式的完成被動(dòng)式， D 項(xiàng)正確。 in vain 徒勞地； in return 作為回報(bào)； in place適當(dāng)?shù)模?in danger 在危險(xiǎn)中?？疾?“have sth. done”結(jié)構(gòu)。 equip 表示 “配備，裝備，使具備 ”。句意：這座城市以高教育質(zhì)量而出名，然而其教育水準(zhǔn)近幾年已經(jīng)下降。 【變式備選】 He can’t make both ends meet due to spending money _______. A． at all B． at most C． at random D． at length 【解析】 選 C。 e about 發(fā)生； e across 偶遇； e around順便來(lái)訪； e along 出現(xiàn)；進(jìn)展。 this means your parents pass some of their characteristics on to you through genes. For example, if both of your parents have green eyes, you might inherit the trait of green eyes from them. Or if your mom has freckles(雀斑 ), you might inherit that trait and wind up with a freckled face. And genes aren’t just in humans — all animals and plants have genes, too. Genes hang out all lined up on threadlike things called chromosomes(染色體 ). Chromosomes e in pairs, and there are hundreds, sometimes thousands of genes in one chromosome. The chromosomes and genes are made of DNA, which is short for deoxyribo nucleic acid. Chromosomes are found inside cells, the very small units that make up all living things. A cell is so tiny that you can only see it through the lens of a strong microscope, and there are billions of cells in your body. Most cells have one nucleus. The nucleus, which is sort of eggshaped, is like the brain of the cell. It tells every part of the cell what to do. How does the nucleus know so much? It contains our chromosomes and genes. Tiny as it is, the nucleus has more information in it than the biggest dictionary you’ve ever seen. 1. What does the underlined word “inherit” probably mean in the first paragraph? A. carry B. send C. obtain D. pass 2. Which of the following is NOT true according to the passage? A. The parents pass some characteristics on to their children. B. All living things receive traits from the old generations. C. One’s green eyes might be passed on from the parents. D. A mother’s freckled face might affect her young’s face. 3. From the passage we can know that________. A. genes can decide all your characteristics from parents B. genes exist inside cells that make up all living things C. genes tell every part of the cell what to do D. chromosomes e in pairs containing genes
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