Unit 3 Lesson 7 A Famous Inventor重难点知识讲解及基础练习（含答案）-2023-2024学年九年级英语北师大版全一册

Lesson 7 A Famous Inventor
1. Some messages are understood by people around the world simply because they
are not communicated by words. 一些信息被世界各地的人们所理解，只是因为它们不是用言语来交流的。(Unit 1 P6)
Since many of da Vinci's inventions were far ahead of their time, they were only tested hundreds of years later． 由于达·芬奇的很多发明都远远超越当时的时代，因此这些发明只能在几百年后得到检验。
Some think da Vinci wanted to keep his ideas secret as he wrote his diary in code. 由于他的日记是用密码写的，所以有些人认为达 芬奇想让他自己的想法保密。
【解析】because， as, since 这几个词都是表示“原因”的从属连词，引导原因状语从句，语气由强至弱依次为：because, since, as.
because 表示直接原因，它所指的原因通常是听话人所不知道的，语气最强。
常用来回答why 的提问，一般放于主句之后，也可以单独存在。
—Why is she absent？她为什么缺席？一 Because she is sick. 因为她病了。
since 侧重主向，从句表示显然的或已为人所知的理由，常译为“因为；既然”，语气比 because 稍弱，通常置于句首，表示一种含有勉强语气的原因。
例如：
Since he asks you, you'll tell him why. 他既然问你，那就告诉他为什么吧。
as 是常用词，它表示的“原因”是双方已知的事实或显而易见的原因，或者理
由不是很重要，含义与 since 相同，但语气更弱，没有 since 正式，常译为“由于，鉴于”。从句说明原因，主句说明结果，主从并重。例如：
As I was not ready, they went without me 由于我没有准备好，他们没有带我去。
2. Because he couldn't test them, not all of da Vinci's plans worked out as well as he wished. 因为达 芬奇无法测试它们，所以并非所有计划都如他希望的那样取得成功。
【解析】as well as 和…一样好，也：还有：不但…而且…
例如：He can speak French as well as English. 他不但会说英语还会说法语。
He speaks French as well as English. 他的法语讲得和英语一样好。
基础练习
一、翻译下列短语。
1. 成功地进展________________________________________________________
2.保守秘密___________________________________________________________
3. 并不是所有的都…，并非都___________________________________________
4.例如_______________________________________________________________
5. 也；还有___________________________________________________________
6. 一些…另一些…____________________________________________________
7数以百计的，许多____________________________________________________
8.因为_______________________________________________________________
9. 团队合作__________________________________________________________
10. 对 感兴趣_______________________________________________________
二、、连词成句。
1. considered, greatest, he, one of, is, the, painters, all time, of (.)
_____________________________________________________________________
2. not many, know, was, he, however, an engineer, people, an inventor, and, also (.)
_____________________________________________________________________
3. was interested in, and, a pioneer, da Vinci, science and art, in many areas, was, he (.)
_____________________________________________________________________
4. his ideas, however, worked well, some of (.)
_____________________________________________________________________
5. it was drawn, one of his bridges, for example, was finally built, flying machines, are very common now, such as, 500 years, after, and, helicopters (.)
_____________________________________________________________________
三、根据课文内容，用 because, because of, since, as, as well as 填空。
1. He is still famous today _____ the Mona Lisa and other well-known paintings.
2. _____ he died on May 2nd, 1519, people have been learning from them.
3. They included plans for an adding machine, bridges _____ drawings of musical instruments, flying machines and machines for war, such as guns.
4. _____ many of da Vinci's inventions were far ahead of their time, they were only tested hundreds of years later.
5. _____ he couldn't test them, not all of da Vinci's plans worked out he wished.
6. Some think da Vinci wanted to keep his ideas secret _____ he wrote his diary in code.
7. Others think it was just easier for him to write this way _____ he was lefthanded.
8. Either way, da Vinci's diaries can only be read with a mirror _____ everything is written backwards.
9. _____ it took some time to translate the diaries, they were published more than 150 years after his death.
四、用 because, because of, since,as, as well as 完成句子。
1. She didn't go to school _____ she was ill.
2. _____ everybody is here, let's begin.
3. _____ it was raining, we all stayed at home instead of going to the park.
4. He failed his exam _____ his carelessness.
5. My father has experience _____ knowledge.
6. Judy has made lots of friends _____ she came to China.
7. Mary speaks French _____ her French teacher does.
五、根据中文提示完成句子。（每空一词）
1. 我相信你自己能解决这个问题。
I believe that _____ _____ _____ _____ _____ _____ by yourself.
2.她会弹钢琴，也会拉小提琴。
She can play the piano _____ _____ _____ _____ _____ .
3. 尽管他被认为是一位伟大的作家，他的作品并没有被广泛阅读。
Although _____ _____ _____ _____ _____ _____ _____ , his works are not widely read.
4. 公园里有许多游客。有的在划船，有的在拍照。
There are lots of visitors in the park. _____ are boating, and _____ _____ _____ _____ .
5. 他们用了一个晚上的时间完成了这项工作。
It _____ _____ a whole night _____ _____ the work.
参考答案
一
1. work out 2. keep sth. secret 3. not all 4. for example
5. as well as 6. some... others.... 7. hundreds of 8. because of
9. work in a team 10. be interested in
二
1. He is considered one of the greatest painters of all time.
2. However, not many people know he was also an engineer and an inventor.
3. Da Vinci was interested in science and art, and he was a pioneer in many areas.
4. However, some of his ideas worked well.
5. For example, one of his bridges was finally built 500 years after it was drawn and flying machines, such as helicopters, are very common now.
三
1. because of 2. Since 3. as well as 4. Since
5. Because; as well as 6. as 7. because 8. because 9. As
四
1. because 2. Since 3. As 4. because of
5. as well as 6. since 7. as
五
1. you can work out the problem
2. as well as the violin
3. he is considered ale as a great writer
4. Some; others are taking photos
5. took them; to finish