《2025年知识与能力训练八年级英语上册沪教版》

(D) 1.— Will you go to David's wedding party?
— I won't go unless I am invited.
A.because
B.and
C.but
D.unless

答案： D

(A) 2.If you ______ the water, it ______ into gases.
A.boil; turns
B.will visit; will be
C.will boil; turn
D.will boil; will turn

答案： A

(C) 3.I ______ you if I ______ free tomorrow.
A.visit; will be
B.will visit; will be
C.will visit; am
D.visit; am

答案： C

( ) 4.C you have lots of money, you can't buy that house.
A.If
B.Because
C.Unless
D.Until

答案： C

(D) 5.You will fail the exam ______ you don't study hard.
A.and
B.though
C.but
D.if

答案： D

(A) 6.You won't learn English well ______ you work hard.
A.unless
B.when
C.if
D.because

答案： A

( ) 7.B you don't go to bed earlier, you will feel tired tomorrow.
A.Unless
B.If
C.Though
D.Until

答案： B

(A) 8.I won't come to see you ______ I am asked to.
A.unless
B.because
C.if
D.though

答案： A

Ⅱ Read the passage and fill in the blanks with the correct form of the words or phrases from the following list and the words in the brackets.
if so unless but when since until
Can you imagine going deep into a whole new world—inside a volcano (火山)? 1. When a volcano erupts, smoke 2. bursts (burst) into the sky. Rocks and ash shoot up into the air, and lava rolls down the mountain. Who in their right mind would want to come close to something like that? No one, of course. However, 3. unless it were dangerous, how exciting it 4. would be (be) to explore inside a volcano. 5. If you are interested, Iceland seems to be the only place on Earth where you can go down inside a volcano. Thrihnukagigur volcano's last eruption was 4,000 years ago and it 6. has remained (remain) dormant ever 7. since. A dormant volcano is "sleeping" 8. but is expected to erupt again sometime. Dormant volcanoes still contain liquid rock called magma. But it won't come to surface 9. until it is hot enough and under enough pressure. Its magma chamber is empty, 10. so visitors can now explore it.

答案：

1. When   2. bursts        3. unless    4. would be   5. If  

6. has remained    7. since    8 but    9. until    10. so