试卷第4页,共31页 基础版 名校模拟练05 语法填空 (每篇限时5分钟) (2022·浙江温州·一模)读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。 In the face of a changing climate and an ever-growing population, strengthening the world’s future food security has never been more important. That’s where seed banks come in, and their goal is ___1___ (preserve) as many plant species as possible. The Svalbard Global Seed Vault in Norway is the so-called “mothership” of seed banks and stores back-ups of more than one million plant ___2___ (sample). Scientists have cross-bred (杂交) certain seeds to produce beans and potatoes that are ___3___(rich) in vitamins, zinc and iron than standard varieties. These ___4___ (improve) varieties have been sent to Africa and elsewhere in Latin America, ___5___ benefits for public health. But seed bankers still need to work fast. According to ___6___ UN Food and Agriculture Organization, 75% of global crop species ___7___ (lose) over the past century. At the same time, about 40% of the world’s plant species are at risk of extinction, ___8___ most of the world’s food comes from just a handful of plant and animal species. Though there are more than 7,000 plant species on the planet, just three——rice, maize and wheat——___9___ (be) the staple food of over half the world’s population. That is ____10____ seed banks are so important. 【答案】 1.to preserve 2.samples 3.richer 4.improved 5.with 6.the 7.has been lost 8.and 9.are 10.why 【导语】这是一篇说明文。文章主要说明了面对不断变化的气候和不断增长的人口,加强世界未来的粮食安全从未像现在这样重要。这就是种子银行的作用,它们的目标是保存尽可能多的植物物种。 1.考查非谓语动词。句意:这就是种子银行的作用,它们的目标是保存尽可能多的植物物种。说明主语的内容,用不定式作表语。故填to preserve。 2.考查名词的数。句意:该种子库坐落于寒冷的斯瓦尔巴群岛的一处山脚下,储存着超过100万份植物样本。sample为可数名词,由more than one million修饰应用复数形式。故填samples。 3.考查比较级。句意:科学家对部分特定的种子进行了杂交和增压,以产出比普通品种富含更多锌、铁和维生素的优质豆类和木薯类品种。根据“than”可知,此处表示“更富含”应用比较级。故填richer。 4.考查形容词。句意:这些改良品种已被送往非洲和拉丁美洲其他地区投产,将造福当地的公众健康。修饰后文名词varieties应用形容词improved,作定语。故填improved。 试卷第4页,共31页 5.考查介词。句意:这些改良品种已被送往非洲和拉丁美洲其他地区投产,