You can’t believe how terrible the fire is _______ you see it with your own eyes.
A. though B. because C. unless D. since
Driving in rush hour traffic ______ be very dangerous, so you _____ be too careless.
A. should; ought to B. could; should
C. might; mustn’t D. can; can’t
Jerry is always so busy that he can hardly _________ a few minutes to talk with his child.
A. spare B. share C. spend D. save
---________ it is from our own planet Earth to Mars!
--- Yes, it takes months to travel to Mars by spacecraft.
A.How soon B.How far
C.How long D.How often
—Jim took ___ one-hour ride just now.What a short time he spent finishing such a long way!
—He is ______ experienced rider.
A.an; the B.a; an
C.a; the D.an; a
There are four seasons in China.March, April and May make the spring.June, July and August make the summer season.September, October and November make the autumn season.The rest（剩下）of months make the winter season.
The Australia seasons are the opposite（相反的）of ours.When it’s spring in China, it is autumn in Australia.
Australia is in the south（南方）of the earth.June, July and August are the winter months.The summer is in December, January and February.It’s very hot there, too.
Near the North Pole（北极）there are two seasons.The winter nights are long.For more than two months you can’t see the sun, even at noon.The summer days are long.For more that two months, the sun never sets（落下）, and there’s no night.
1.＿＿＿make the winter season in China.
A. October, November and December
B. November, December and January
C. December, January and February
D. January, February and March
2.When it’s summer in China, it is＿＿＿in Australia.
A. winter B. autumn C. spring D. summer
3. Near the North Pole there are two seasons: ＿＿＿.
A. spring and summer B. summer and winter
C. summer and autumn D. spring and winter
4. Near the North Pole, there’s no night in summer for more than＿＿＿months.
A. one B. two C. three D. four
5. ＿＿＿in winter near the North Pole.
A. The days are longer than the nights
B. The days are as long as the nights
C. The days are shorter than the nights
D. The nights are shorter than the days
