题目内容
Great changes________in our hometown in the past five years.
A. have happened B. have taken place
C. have been happened D. have been taken place
| This boy demonstrated his invention a pen with a reading glass，in Harbin on January 20，2009.Over 16 small inventions have been made since a training course was opened at the Science Palace in Harbin in November，2008. |
| This boy's invention，which can cut an apple into pieces，was demonstrated in Harbin on January 20，2009. |
| This boy invented a musical alarm clock which he demonstrated in Harbin on January 20，2009. |
| This small car was invented in March，2010 by a college student.It has 250 cm long and 100 cm wide.The car weighs less than 50 kg.It only has one seat. |
1.When was the training course opened at the Science Palace in Harbin?
A. In January，2009. B. In November，2008.
C. In May，2009. D. In March，2010.
2.Which invention is the latest?
A. The small car with one seat.
B. The musical alarm clock.
C. The pen with a reading glass.
D. The machine which can cut apples into pieces.
3.The third boy invented something that can help people ________.
A. cut an apple into pieces
B. wake up every morning
C. take the bus conveniently
D. see words clearly
4.The underlined word “demonstrated” in the passage means “________”．
A. showed B. drew C. imagined D. divided
5.The passage mainly talks about ________.
A. several new inventions
B. students' school life
C. the training course in Harbin
D. the Science Palace in Harbin