2026年思维新观察八年级英语上册人教版第90页答案
四、阅读短文,用方框中所给词的适当形式填空。(每空一词)
although impossible live send first
earth carefully another luckily ticket
Humans might live on another planet one day! That seemed 1.
impossible
years ago. But now the idea might come true. According to scientists, humans only have about 1,000 years to live on 2.
earth
. It means that humans will fly to 3.
another
planet in 1,000 years.
In fact, we have found one red planet—Mars. For many years, scientists have studied Mars. Some years ago, they 4.
sent
robots there and wanted to find water and life. 5.
Luckily
, they found that there was water on it. The idea of living there looks possible.
For example, in 2013, some experts planned the 6.
first
step to take humans to Mars. They offered people one-way 7.
tickets
to go and build a new home on Mars. 8.
Although
it was dangerous, over 200,000 people still wanted to have a try.
Now experts from other countries are also making plans to get humans to Mars and making preparations 9.
carefully
to help people get back to earth. I am looking forward to 10.
living
on Mars. Will you join us?

答案

1. impossible 2. earth 3. another 4. sent 5. Luckily 6. first 7. tickets 8. Although 9. carefully 10. living

解析

【分析】
本题为英语选词填空题,解题思路如下:①先通读全文,把握短文主题(人类未来移居火星的相关内容),理解整体语境;②逐个分析每个空格的句子结构、所需词性及词义,结合方框内给出的词汇(although、impossible、live、send、first、earth、carefully、another、luckily、ticket);③根据语法规则(如时态、名词单复数、形容词/副词形式、连词用法、动名词搭配等)对词汇进行适当变形;④将变形后的词汇代入空格,验证语句通顺、逻辑合理。
【解析】
1. 空格处需形容词作表语,结合语境“多年前那似乎是不可能的”,选方框内impossible,故填impossible;
2. 固定搭配live on earth意为“在地球上生存”,符合“人类在地球生存时间有限”的语境,故填earth;
3. 空格后为单数名词planet,需表泛指的“另一个”,方框内another符合,故填another;
4. 根据时间状语“some years ago”,句子用一般过去时,send的过去式为sent,故填sent;
5. 空格处修饰整个句子,需用副词,结合“幸运的是发现火星有水”,方框内luckily符合,句首首字母大写,故填Luckily;
6. 空格前有定冠词the,需用序数词,结合“计划第一步送人类上火星”,方框内first符合,故填first;
7. 空格前无冠词,表泛指“单程票”,需用名词复数,方框内ticket的复数为tickets,故填tickets;
8. 空格处引导让步状语从句,结合“虽然危险但仍有人尝试”,方框内although符合,句首首字母大写,故填Although;
9. 空格处修饰动词短语making preparations,需用副词,方框内carefully符合,故填carefully;
10. 固定搭配look forward to后接动名词,方框内live的动名词为living,故填living。
【答案】
1. impossible 2. earth 3. another 4. sent 5. Luckily 6. first 7. tickets 8. Although 9. carefully 10. living
【知识点】
选词填空;词汇适当形式变形;连词与副词用法
【点评】
本题考查英语基础词汇在语境中的运用,要求学生结合上下文逻辑和语法规则完成词汇变形,注重对词汇词义、词性及搭配的掌握,是英语学习中的常见基础题型。
【难度系数】
0.6