三、词汇运用。
主题群:自然生态
子主题:与自然和谐共生
语篇类型:说明文
难度:★★
What would our world be like if there were no insects? It might sound nice in the 1. ______ (begin). There would be no bugs or flies in your room. But in fact, this could lead to(导致) really serious problems. The bad news is that the number of insects 2. ______ (keep) dropping these years. Scientists say it's 3. ______ (main) because of the use of pesticides(杀虫剂). They destroy the places where insects live.
What would happen if all insects died out? It's almost 4.
impossible
(possible) to predict(预言) it, but the results would be 5.
terrible
(terribly). We need insects to pollinate(授粉) crops. They also break down 6.
dead
(die) plants and animals and turn them into 7.
useful
(use) new things. We need them to keep the soil healthy. Without insects, many animals would have nothing 8.
to eat
(eat). They would go hungry and die.
The first thing we need to do is let more people understand the 9.
importance
(important) of the natural world, both for what it does for us and for 10.
itself
(it). We should teach our children environmental awareness(意识) at an early age.
解析:
【分析】
本题为英语词汇运用题,需结合句子结构、固定搭配、词性转换、时态等语法知识,根据所给提示词填写正确形式。解题时先通读全文理解主旨(探讨昆虫消失的影响及保护自然的重要性),再逐个分析空格:1.考查固定搭配;2.考查主谓一致与时态;3.考查副词修饰介词短语;4.考查形容词词义(反义词);5.考查形容词作表语;6.考查形容词修饰名词;7.考查形容词修饰名词;8.考查不定式作定语;9.考查名词作宾语;10.考查反身代词用法。
【解析】
1. 固定搭配in the beginning意为“起初”,故填begin的名词形式beginning;
2. 主语是“the number of + 可数名词复数”(……的数量),作主语时谓语用第三人称单数;描述客观事实用一般现在时,故keep变为keeps;
3. 此处修饰介词短语because of,需用副词,main的副词形式是mainly,故填mainly;
4. 结合语境“几乎不可能预言结果”,possible的反义词是impossible,故填impossible;
5. be动词后接形容词作表语,terribly是副词,其形容词形式为terrible,故填terrible;
6. 空格后是名词plants,需用形容词修饰,die的形容词形式是dead,故填dead;
7. 空格后是名词things,需用形容词修饰,use的形容词形式是useful,故填useful;
8. 固定结构“have sth. to do”,不定式作后置定语修饰不定代词nothing,故填to eat;
9. 定冠词the后接名词,important的名词形式是importance,故填importance;
10. 此处指代“the natural world”本身,用反身代词itself,故填itself。
【答案】
1. beginning 2. keeps 3. mainly 4. impossible 5. terrible 6. dead 7. useful 8. to eat 9. importance 10. itself
【知识点】
词性转换;固定搭配;反身代词用法
【点评】
本题围绕“自然生态”主题,考查初中英语核心的词形变化、语法搭配知识,题型常规,难度适中,能有效考查学生对基础词汇和语法的掌握情况。
【难度系数】
0.6