2026年课时特训九年级英语上册外研版第170页答案
Ⅳ. Vocabulary use.
A. Choose words or phrases from the box and complete the sentences in proper forms.
silent, pollute, noise, deep, break down
Near the seaside, the 1.
noisy
sounds of boats never stop, while tiny plastic rubbish drifts 2.
silently
far into the sea. Sea 3.
pollution
has harmed ocean life seriously.
Scientists dive to measure the 4.
depth
of seawater to study the waste. It takes hundreds of years for plastic 5.
to break down
in cold ocean water. Too much trash kills fish and sea plants quietly. We need to cut waste and protect our ocean before it is too late.

答案

1. noisy 2. silently 3. pollution 4. depth 5. to break down

解析

【分析】
本题需结合句子语境,分析每个空缺处所需的词性,再从方框内的词汇中选择并转换为正确形式填空。先明确每个空的语法成分,再匹配对应词汇的变形规则,同时注意固定搭配的运用。
【解析】
1. 空后是名词sounds,需用形容词修饰,方框中名词noise的形容词形式为noisy,符合“嘈杂的船声”的语境;
2. 空处修饰动词drifts,需用副词,形容词silent的副词形式为silently,表“静静地漂远”;
3. 空处作主语,需用名词,动词pollute的名词形式为pollution,对应“海洋污染”的含义;
4. 空处作measure的宾语,需用名词,形容词deep的名词形式为depth,表“海水深度”;
5. 固定结构“it takes +时间+to do sth”,表示“做某事花费……时间”,故用to break down,符合“塑料分解需数百年”的语境。
【答案】
1. noisy 2. silently 3. pollution 4. depth 5. to break down
【知识点】
词汇词性转换、固定搭配
【点评】
本题考查词汇在语境中的正确形式运用,需结合词性分析和固定搭配解题,是基础词汇变形类题目,注重对词汇变形规则的掌握。
【难度系数】
0.5
B. Complete the passage according to the Chinese hints in brackets.
A reporter recently did a survey to 1.
highlight
(突出,强调) plastic pollution in daily life. The data showed that on 2.
average
(平均数), a family throws away several plastic toothbrushes every year, and such waste will silently pollute soil and rivers. 3.
Nowhere
(无处) is free from plastic harm, especially from the fast consumer 4.
industry
(制造业). It brings us convenience yet also causes 5.
negative
(有害的,不良的) influences on nature. Many people fail to tie daily
small waste to serious 6.
environmental
(环境的) problems. Used plastic goods cannot disappear easily. If we keep buying throwaway plastic 7.
products
(产品) carelessly, pollution will only get worse. We must change our habits. Choosing 8.
reusable
(可重复使用的) items instead of disposable toothbrushes can effectively 9.
reduce
(减少) plastic rubbish. Small 10.
actions
(行为) matter a lot to protect our planet.

答案

1. highlight 2. average 3. Nowhere 4. industry 5. negative
6. environmental 7. products 8. reusable 9. reduce 10. actions

解析

【分析】
本题为根据中文提示填写合适英语单词的词汇运用题,解题思路为:结合句子结构(如不定式、固定搭配、词性要求)、语境及中文提示,确定每个空所需单词的正确形式(如动词原形、名词复数、形容词等)。
【解析】
1. 空前为不定式符号to,需填动词原形,中文“突出,强调”对应单词highlight;
2. 固定搭配on average意为“平均”,符合语境,故填average;
3. 句首需填表“无处”的单词,首字母大写,对应Nowhere;
4. 固定表达fast consumer industry意为“快速消费制造业”,符合语义,故填industry;
5. 修饰名词influences需形容词,中文“有害的,不良的”对应negative;
6. 修饰名词problems需形容词,中文“环境的”对应environmental;
7. 此处指塑料产品,可数名词需用复数形式,对应products;
8. 修饰名词items需形容词,中文“可重复使用的”对应reusable;
9. 情态动词can后接动词原形,中文“减少”对应reduce;
10. 谓语动词matter为原形,主语需用复数名词,中文“行为”对应actions。
【答案】
1. highlight 2. average 3. Nowhere 4. industry 5. negative 6. environmental 7. products 8. reusable 9. reduce 10. actions
【知识点】
英语词汇运用、固定搭配、词性转换
【点评】
本题考查基础英语词汇及常用固定表达,需结合句子结构和语境确定单词形式,难度适中,适合初中阶段学生练习。
【难度系数】
0.6