内容正文:
Unit 13 We're trying to save the earth!
Section A Grammar Focus-4c
一、单项选择
( )1.-The air here is much fresher than before.
-Exactly! We_____a lot of trees in the past few years.
A. planted B. were planting C. have planted D.will plant
( )2.---Dad,Where's Mom?
---She________in the kitchen now.
A. works B.worked C.is working D. was working
( )3.Train tickets ______online. It is convenient.
A. Sold B.were sold C.are sold D.have sold
( )4.- Is that Mary over there?
-It_______ be her. She has gone to Kunming.
A.may B.must C.can't D.mustn't
( )5.I used to_______newspapers and watch TV after dinner. But now I'm used to_______a walk.
A.read;take B.read;taking C.reading;taking D.reading;take
二、语法选择
Bike-sharing is a new choice for short journeys in cities. It is good for1____ healthy development of the big cities.
A report from a company 2 _____that shared-bikes started nation's love for bikes again. Now more and more Chinese people 3_____bikes instead of cars to make short journeys in cities.
An engineer in that company says that people now make few trips by cars, 4______ shared-bikes bring a lot of convenience(方便) to them.The 5______for shared-bikes is not only among young people, who were born in the 1980s and 1990s,but also among people over sixty.
At weekends,the 6_____ of the riders in Shenzhen reaches the top of all cities. On weekdays,the number of people who use shared-bikes to travel to work is going up in Shanghai.
It is said that a bike-sharing will 7 _____to improve the cities’environment. It not only helps 8 _____the traffic problems, but also will help to make more use of space in cities. Take Beijing as an 9______,if more people choose shared-bikes,an area of five Bird's Nest stadiums(体育场) will be saved. Since shared-bikes have so many advantages,let's go by bike and make our country a10______place to live in.
( )1.A.the B. a C.an D./
( )2.A.find B.finds C.found D.finding
( )3.A.chooses B.are choosing C.chose D.are chosen
( )4.A.but B.