四、明明正在整理一些重要的发明。听录音，请你根据明明的介绍，用A、B、C、D、E给图片排序。
1. ()
2. ()
3.
4. ()
5. ()

1.B 2.C 3.D 4.A 5.E

五、同学们在科技馆学习世界伟大的发明。听录音，根据录音内容，选择正确的答案。
() 1. People can talk to others far away with a .
A. light bulb B. mobile phone C. flying machine
() 2. With , we can see clearly at night.
A. telephones B. lights C. planes
() 3. is a great invention from China.
A. The painting B. The internet C. The printing
() 4. The invention of the changes the way people travel a lot.
A. internet B. AI C. plane
() 5. can give you the answer to the brain teaser(脑筋急转弯):
A. AI B. A telephone C. A plane

1.B 2.B 3.C 4.C 5.A

六、听录音,根据短文内容,补全所缺的单词或短语。
People invented a lot of 1. to make life easy. A bottle opener is a 2. . With a bottle opener, people can open the bottle easily. We use pulleys(滑轮) in our lives often. A pulley is a piece of equipment made with a 3. and a rope. We can use it to lift heavy things. Children like to go down the slide in the 4. . A slide is a ramp. Things can move up and down more easily on a ramp. People in 5. can use ramps to go into or out of buildings.

1. simple machines
2. lever
3. wheel
4. playground
5. wheelchairs

一、判断下面各组画线部分的发音是否相同,相同写"A",不同写"B"。
() 1. grow show down
() 2. how now brown
() 3. chicken child machine
() 4. playground say always
() 5. mountain raise rain

1.B 2.A 3.B 4.A 5.B

【分析】本题为英语单词画线部分发音辨析题，需逐一分析每组单词画线字母或字母组合的发音，对比是否一致，相同填A，不同填B。具体思路：1. 分析第一组单词中字母组合ow的发音；2. 分析第二组单词中字母组合ow的发音；3. 分析第三组单词中字母组合ch的发音；4. 分析第四组单词中字母组合ay的发音；5. 分析第五组单词中字母ai、ay的发音，再对应判断。
【解析】1. grow中ow发/əʊ/，show中ow发/əʊ/，down中ow发/aʊ/，发音不同，填B；2. how中ow发/aʊ/，now中ow发/aʊ/，brown中ow发/aʊ/，发音相同，填A；3. chicken中ch发/tʃ/，child中ch发/tʃ/，machine中ch发/ʃ/，发音不同，填B；4. playground中ay发/eɪ/，say中ay发/eɪ/，always中ay发/eɪ/，发音相同，填A；5. mountain中ai发/ə/，raise中ay发/eɪ/，rain中ai发/eɪ/，发音不同，填B。
【答案】1.B 2.A 3.B 4.A 5.B
【知识点】英语字母组合发音辨析
【点评】本题考查小学阶段常见字母及字母组合的发音，属于基础发音辨析题，需准确掌握单词读音即可解答。
【难度系数】0.6