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Ⅰ. Choose the proper words from the box and complete the sentences.
从方框中选择恰当的单词，完成下列句子。每空一词，每词只用一次。
1. The treasure was
2. Many people wonder if there is life elsewhere in the
3. The Great Wall is
4. The math problem is so difficult that it is still
5. We should be
6. The disappearance of the plane remains a
从方框中选择恰当的单词，完成下列句子。每空一词，每词只用一次。
1. The treasure was
hidden
in a secret place.2. Many people wonder if there is life elsewhere in the
universe
.3. The Great Wall is
known
as one of the Seven Wonders of the world.4. The math problem is so difficult that it is still
unsolved
.5. We should be
familiar
with the rules of the school.6. The disappearance of the plane remains a
mystery
. No one knows what really happened.答案
Ⅰ. 1. hidden 2. universe 3. known 4. unsolved 5. familiar 6. mystery
Ⅱ. Complete the passage according to 3a. 根据 3a 完成下面短文，每空一词。
Have you ever done something that felt
Have you ever done something that felt
familiar
, even though you know it's the first time? This feeling is known
as déjà vu, a French term meaning “already seen
”. There are now a number of interesting theories
about it. Some people think déjà vu must come from dreams
we had in the past
. Some suggest déjà vu might show we have a hidden
power to see the future. Others even believe it could be linked to parallel
universe
. But most scientists believe that it is just a mix-up
in the brain, making us feel something is familiar when it is actually
not. If you have déjà vu sometimes, it's usually not a problem. But if it happens often
, it may be a sign of a health
problem and you should see a doctor. Déjà vu is still one of the many fascinating unsolved
mysteries of human experience.答案
Ⅱ. familiar, known, seen, theories, dreams, past, hidden, parallel universe, mix-up, actually, often, health, unsolved
Ⅲ. Key structures. 关键句型。
A) Underline the modal verbs, must, might, could and can't for making inferences.
画出 3a 中 “must, might, could, can't” 表示推测的情态动词。
B) Fill in the blanks with must, might, could or can't. Do not refer to the passage until you finish your exercises.
用 must, might, could, can't 填空，完成练习后再对照课本，核对你的答案。
1. Some people believe the familiar scenes of déjà vu
2. Some suggest that déjà vu
3. Others even think there
4. If it happens often, you
A) Underline the modal verbs, must, might, could and can't for making inferences.
画出 3a 中 “must, might, could, can't” 表示推测的情态动词。
B) Fill in the blanks with must, might, could or can't. Do not refer to the passage until you finish your exercises.
用 must, might, could, can't 填空，完成练习后再对照课本，核对你的答案。
1. Some people believe the familiar scenes of déjà vu
must
come from past dreams.2. Some suggest that déjà vu
might
show we have a hidden power to see the future.3. Others even think there
could
be a link between déjà vu and parallel universes.4. If it happens often, you
might
have a health problem, and you should see a doctor.答案
Ⅲ. 1. must 2. might 3. could 4. might
