【名词&注释】
化学试剂(chemical reagent)、卵母细胞(oocyte)、观赏植物、自上而下、孢子体(sporophyte)、批评家(critic)、天南星科(araceae)、长条形(long strip)、复大孢子(auxospore)、去核卵细胞
[单选题]为解决二倍体普通牡蛎在夏季因产卵而出现肉质下降的问题，人们培育出三倍体牡蛎。利用普通牡蛎培育三倍体牡蛎合理的方法是
A. 利用水压抑制受精卵的第一次卵裂，然后培育形成新个体
B. 用被 射线破坏了细胞核的精子刺激卵细胞，然后培育形成新个体
C. 将早期胚胎细胞的细胞核植入去核卵细胞中，然后培育形成新个体
D. 用化学试剂阻止受精后的次级卵母细胞释放极体，然后培育形成新个体
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举一反三：
[单选题]下列植物中，具鞭毛的绿藻是( )。
A. 小球藻属
B. 裸藻属
C. 实球藻属
D. 刚毛藻属
[单选题]导管分子的端壁形成( )。
A. 气孔
B. 穿孔
C. 纹孔
D. 水孔
[单选题]在植物学上称为种子。
A. 玉米籽粒
B. 高梁籽粒
C. 向日葵籽粒
D. 花生仁
[单选题]马蹄莲为天南星科(araceae)著名观赏植物，其洁白的“花瓣”实为佛焰苞。( )
A. 正确
B. 错误
[单选题]
A. opinion
B. image
C. espectation
D. mind
[单选题]硅藻分裂多代后，以产生复大孢子(auxospore)的方式恢复原来的大小。( )
A. 正确
B. 错误
[单选题]白色体含有白色素，具有合成、储藏淀粉、蛋白质和脂类的作用，根据储藏物质的不同，它们分为造粉体、造蛋白体和造油体。( )
A. 正确
B. 错误
[单选题]角苔的孢子体较发达，孢蒴长条形(long strip)，基部组织有继续分生的能力，因此孢子自上而下渐次成熟。( )
A. 正确
B. 错误
[单选题]回答 68 ~ 70 题：It is true that good writers rewrite and rewrite and then rewrite some more .But in order to work up the desire to rewrite ,it is important to learn to like what you write at the early stage.I am surprised at the number of famouw writers I know who say that they so dislike reading their own writing later that they even hate to look over the publishers’ opinions .One reason we may dislike reading our own work is that we’re often disappointed that the rich ideas in our minds seem very thin and plain whern first written down .Jerry Fodor and Steven Pinker suggest that this fact may be a result of how our minds work..
A. Different from popular belief ,wen do not usually think in the works and sentences of ordinary language but in symbois for ideas (known as “mentalese”), and writing our ideas down is an act of transtation from that symbolic language .But while mentalese contains our thoughts in the form. of a complex tapestry (织锦)，writing can only be composed one thread at a time .Therefone it should not be surprising that our first attempt at expressing ideas should look so simple .It si only by repeatedly rewrting that wen producs new threads and connect them to get closer to the ideas formed in our minds.
B. When people write as if some strict critics (批评家) are looking over their shoulder , they are so worried about what this critic might say that they get stuck before they even start.Peter Elbow makes an excellent suggestion to deal with this problem .When writing wen should have two different minds .At the first stage ,we should see every idea ,as well as the words we use to express it ,as wonderful and worth putting down .It is only during rewrites that we should examine what wen excitedly wrote in the first stage and check for weaknesses .
C. 第13题：What do wen learn frome the text about those famous writers?
D. They often regret writing poor works
E. Some of them write surprisinglymuch .
F. Many of them hate reading their own works
G. They are happy to revlew the publishers’ opinions.
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