解析:C 数字计算题。根据“Then, the postman handed eight 100-rupee notes to Amma.”可知艾玛这次收到了800卢比。
训练4：★★★（西宁中考）There are 156 seats in the economy class(经济舱) and 8 seats in the first class. Twenty big screens are in it, too.
2. How many seats are there in the plane in total?

A.130.
B.148.
C.156.
D.164.
批改+错题
专项训练
逐题讲解

2. D 数字计算题。根据“There are 156 seats in the economy class and 8 seats in the first class.”可知经济舱有156个座位,头等舱有8个座位,一共是164个座位。

训练1 体裁:说明文 主题:航天与航空 难度:★★★★ 建议用时:8 min 正确率: /4
（原创）Chinese researchers have developed bricks from a material similar to lunar soil, hoping they can be used to build a lunar base in the future.
A team of researchers led by Ding Lieyun at the Huazhong University of Science and Technology(HUST) used a lunar soil simulant(模拟月壤) to make “lunar bricks” that are more than three times stronger than standard red bricks or concrete bricks. They also have mortise and tenon joint structures(榫卯结构), which were used in ancient Chinese buildings. This makes it possible to put these bricks together simply.
According to Zhou Cheng at HUST, the team tested five different kinds of simulated lunar soil and used three ways to harden them. This helped them choose the best materials for making the bricks. ▲ For example, one of the kinds of tested simulates the lunar soil at the landing site of Chang'e 5, which is mainly basalt. Some other kinds simulate the soil found at other locations, which is mainly anorthosite.
The lunar bricks need to undergo performance testing before being used because the moon has an extreme(极端的) environment. Quakes often happen there, and cosmic radiation is high. It gets as hot as $180°\mathrm{C}$ during the day and as cold as $-190°\mathrm{C}$ at night.
The lunar bricks were sent to China's space station on the Tianzhou-8 spacecraft to check how well the bricks do in space. The first brick returned to earth at the end of 2025. China hopes to build a lunar research station between 2028 and 2035.
1. What are the advantages of lunar bricks? ＞＞ 直接理解题
①convenient to produce ②simple to put together
③stronger than standard concrete bricks ④suitable for the extreme environment of the moon
A. ②③ B. ③④ C. ①②③ D. ②③④
2. Which of the following can be put in “ ▲ ” in Paragraph 3?
A. The soil on the moon changes over time.
B. The simulant is different from real lunar soil.
C. Lunar soil is similar everywhere on the moon.
D. Lunar soil changes in different locations on the moon.
3. What's the temperature difference between the lowest and highest on the moon? ＞＞ 数字计算题
A. $10°\mathrm{C}$. B. $180°\mathrm{C}$. C. $190°\mathrm{C}$. D. $370°\mathrm{C}$.
4. Which paragraph(s) talk(s) about why we test lunar bricks?
A. Paragraph 3. B. Paragraph 4. C. Paragraphs 3 & 4. D. Paragraphs 4 & 5.

训练1 【语篇解读】本文是一篇说明文。文章主要介绍了丁烈云团队发明的月壤砖。
1. A 细节理解题。根据第二段“make ‘lunar bricks’ that are more than three times stronger than standard red bricks or concrete bricks”和“This makes it possible to put these bricks together simply.”可知月壤砖的强度是普通红砖或混凝土砖的三倍,榫卯结构使人们能简单地拼装月壤砖。故选A。
＞＞ 直接理解题
易错点拨
本题易错选④。根据最后一段“The lunar bricks were sent to China's space station on the Tianzhou-8 spacecraft to check how well the bricks do in space. The first brick returned to earth at the end of 2025.”可知月壤砖搭乘天舟八号前往中国空间站进行性能测试,第一块月壤砖在2025年底返回地球,但并未提及月壤砖是否能适应月球的极端环境。
2. D 补全文章题。根据下文“For example, one of the kinds of tested simulates the lunar soil at the landing site of Chang'e 5, which is mainly basalt. Some other kinds simulate the soil found at other locations, which is mainly anorthosite.”可知丁烈云团队测试了五种不同的模拟月壤,其中一种模拟了嫦娥五号着陆点的月球土壤,以玄武岩为主,也有其他地方的月球土壤,以斜长岩为主。由此可推知月球上不同位置的土壤不一样。故选D。
3. D 细节理解题。根据第四段“It gets as hot as $180°\mathrm{C}$ during the day and as cold as $-190°\mathrm{C}$ at night.”可知月球上最高温和最低温的温差为 $370°\mathrm{C}$。故选D。
＞＞ 数字计算题
4. B 段落大意题。结合文章内容可知,第三段介绍制造月壤砖的方式(5种不同的模拟月壤成分和3种不同的烧结工艺),第四段介绍测试月壤砖的原因(需要适应月球的极端环境),第五段介绍月壤砖的未来。故选B。