By the time I was five, I ________ learning E...

----By the time I was five, I_________English.

----Really?

A. had started learning　　 B. have started learning

C. started to learn　 　　　 D. started learning

九年级英语单项填空困难题查看答案及解析

By the time I was five, I ________ learning English.

A．had started        B．have started       C．started           D．have been

九年级英语单项填空中等难度题查看答案及解析

I______900 English words by the time I was ten.

A.learned　　　　　 B.was learning

C.had learned　　　 D.have learned

九年级英语单项填空中等难度题查看答案及解析

By the time I was nine ,I ______hundreds of English words.

A. had learned　　　 B. have learned　　 C. has been learned　 D. had been learned

九年级英语单项填空简单题查看答案及解析

By the time he was 4, he ______ a lot of German words.

A. had learned B. has learned C. learned D. learns

九年级英语单选题中等难度题查看答案及解析

By the time I got to the cinema,the movie _______ for ten minutes.

A.had begun      B.had been on       C.has started       D.has been on

九年级英语单项填空简单题查看答案及解析

Tom had learned more than 100 words_______ the age of five．

A. by B. about C. at D. of

九年级英语单选题中等难度题查看答案及解析

By the end of last term, they ________ over 2,000 English words.

A.learned B.has learned C.had learned D.learn

九年级英语单选题简单题查看答案及解析

The word photography was first used in 1839. However, at that time the subject (被拍对象) had to keep still while a picture of it was taken. Few people had ever tried to take photos of moving subjects. The first man to do so was Eadweard Muybridge, a world-famous photographer. He created the first moving picture.

When a horse is running, do all four hooves (蹄)ever leave the ground at the same time? That was the bet that a gentleman called Leland Stanford had with some of his friends. Most people believed that a horse always had one hoof on the ground, but Stanford didn’t think: so. Because a horse’s legs are moving so fast, it’s impossible to tell just by looking. Stanford needed a way to record the movement of a running horse. In 1872, Leland Stanford offered Eadweard Muybridge $25,000 to find the answer. Muybridge had no idea if he could successfully set up and perform an experiment to settle (解决) the bet, but he thought he should give it a try.

In 1878, after years of experiments, Muybridge got what he wanted. He had a sequence (连续) of 12 images (图像), and one of them clearly showed all four of the horse’s hooves were off the ground at the same time. In the end Muybridge collected his well-earned $25,000 from Stanford.

Though Thomas Edison is usually considered as the person who created the first cine-camera (电影摄影机) in 1889, it was the work of Eadweard Muybridge and the bet that led to Edison’s invention.

1.The underlined word “still” most probably means “________” in Chinese.

A.安逸的 B.平衡的 C.直立的 D.静止的

2.Leland Stanford thought that ________.

A.a horse always had one hoof on the ground while running

B.a horse had all 4 hooves off the ground at some point while running

C.it was possible for Eadweard Muybridge to make a moving picture

D.it was impossible for Eadweard Muybridge to make a moving picture

3.Muybridge finally found the answer to the bet in ________.

A.1839 B.1872 C.1878 D.1887

4.Muybridge’s experiments proved that it was ________ who won the bet.

A.Stanford B.Stanford’s friends. C.Muybridge D.Muybridge’s friends

5.The passage mainly tells us ________.

A.that Thomas Edison created the first cine-camera

B.that Eadweard Muybridge created the first still pictures

C.how photography helped people know more about animals

D.how Eadweard Muybridge got pictures of movement successfully

九年级英语阅读单选中等难度题查看答案及解析

By the end of last term, they _____over 2,000 English words.

A.learn　　　　 　　 B.has learned

C.learned　　　　　 D.had learned

九年级英语单项填空中等难度题查看答案及解析