These young trees require ()carefully.
A looking after
Bto look after
Clook after
Dlooking for
A looking after
Bto look after
Clook after
Dlooking for
第1题
A.beautiful
B.healthy
C.old
D.young
第2题
_______more attention, the young trees could have grown much better.
A. To give
B. Given
C. Give
D. Having given
第3题
21.Detecting different genes in plants is like().
A.the examination of human finger-prints
B. the development of new varieties of fruit
C.the checking of young a nd tender branches
D.the distinction between bad trees a nd good ones
23.We learn from the first paragaph that the study of genes.()
A. has greatly affected fruit output
B. has been a popular planting procedure
C. will change the taste of individuals
D. will play a vital role in fruit production
24.Now famers can tll whether afruit tee is dsirable or notby().
A. having a DNA test of a young leaf of the tee
B. mixing dferet types of sitble genes
C.checking its young branches before panting
D. comparing the sining ines with the geneic signs .
25. The ps el us thet he new geneic echoy wi enble ames.()
A. increase the DNA ofa fuit tree
B. improve the qualty of fruit
C. make use of the sing feturesof fuit
D. change the cycle of fuit production
第4题
A.the examination of human finger-prints
B.the development of new varieties of fruit
C.the checking of young and tender branches
D.the distinction between bad trees and good ones
第7题
For anyone who hates doing yard work, your new best friend may have arrived. A robot can autonomously shovel snow, collect leaves and cut grass.
“We’re trying t o help people not spend time on yard work,”said Steven Waelbers, the designer of t he robot. “We want people to enjoy t heir free time with their family.”The electric robot can run by itself in right directions with the help of two beacons(信号塔) that must be placed in the yard. the robot includes a camera and ultrasound sensor (超声传感器) that Waelbers said would stop quickly when it finds pets and people.
Owners of the robot will need t o regulate t he values stored in the robot. then it will confirm the task it’s going to take. Before the robot operate by itself, an owner must manually wheel it around the yard 一 taking it around any obstacles like trees, bushes or mailboxes. By doing this, the robot is taught how long and wide the lawn is, and won’t accidentally(不小心) destroy your rose hush or run to the neighborhood.
Once this setup is complete, and the $3,999 robot has been trained on where to cut grass, rake leaves and shovel snow, it operates without any supervision.
Waelbers has always loved to build robots and play with electronics. He started work on a high-tech company after his father asked him to make a robot that would shovel snow for him. Waelbers plans to start sales in early 2017.
26. This article mainly talks about()
A. a newly-designed robot
B. The founder of a company
C. problems with a new product
27. According to Steven Waelbers, the robot is designed to()
A. encourage people to do exercise
B. help people keep healthy and fit
C. make people enjoy family time
28.the robot would stop in front of pets and people thanks to()
A. the remote controller
B. the ultrasound sensor
C. the big and square yard
29. Which of the following steps should be done in the first place?()
A. An owner must wheel the robot around the yard by himself.
B. The robot learns and stores the length and width of the lawn.
C. The robot operates the task it’s going to take without supervision.
30. Which of the following about Waelbers is TRUE?()
A. He didn’t love building robots when he was a young boy.
B. His father asked him to make a robot that could play balls.
C. He is starting to sell this snow-shoveling robot in early 2017.
第8题
When he came back, the road was clean and the snow from it was not on the trees, or the fence, or the street. Mr Smith was very pleased ___24___ he opened the garage to get out his car. The garage was full to the top with all the snow from the road, and his car was somewhere ___25___ it.
21)、
A.harm
B.angry
C.until
D.under
E.paid
22)、
A.harm
B.angry
C.until
D.under
E.paid
23)、
A.harm
B.angry
C.until
D.under
E.paid
24)、
A.harm
B.angry
C.until
D.under
E.paid
25)、
A.harm
B.angry
C.until
D.under
E.paid
第9题
第10题
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