一、词汇运用
A. 根据汉语提示,写出各单词的正确形式,每空一词。
1. I think girls have some (优势) in learning English.
2. Reading in the bright light is (有害的) to our eyes.
3. They are making a (调查) of the stress among teenagers.
4. One of the main (劣势) of this job was the long hours. So I didn't take it.
5. There was a plan (开展) out in our class last Friday.
6. Some students thought that (外星人) were dangerous.
7. I had many photos (拍照) when I visited Hainan Island.

1. advantages
2. harmful
3. survey
4. disadvantages
5. carried
6. aliens
7. taken

B. 从方框中选择恰当的单词,并用其适当形式填空,每个单词只能用一次。
discuss, do, conduct, hope, see, sleep, take, safe
1. Some of the students are afraid of aliens there.
2. They are not sure whether it is much to live there.
3. The captain was not willing to risk his ship through the strait(海峡).
4. The questions she asked last week are still under .
5. Daniel a survey in schools in Sunshine Town recently.
6. My mother often has me the housework during my holiday.
7. Please be careful. You may get ill from outside.
8. , he passed the exam while his friends didn't.

1. seeing
2. safer
3. conducting
4. discussion
5. has conducted
6. do
7. sleeping
8. Hopefully

() 1.I won't believe in him any more unless he ______ the plan tomorrow.
A.will carry on
B.carry out
C.carries out
D.is going to carry out

C

本题考查条件状语从句的时态。在英文中，如果主句是一般将来时，条件状语从句要用一般现在时来代替将来时。本句中“unless he ______ the plan tomorrow”是一个条件状语从句，表示“除非他明天……这个计划”，主句是“I won't believe in him any more”，是一般将来时。因此，条件状语从句应该用一般现在时。选项A“will carry on”和选项D“is going to carry out”都是将来时态，不符合语法规则。选项B“carry out”是动词原形，而主语“he”是第三人称单数，所以动词应该用第三人称单数形式。选项C“carries out”是动词的第三人称单数形式，符合语法规则。