Unit 5　Look into Science Lesson 28 The Study of Living Things课课练 （word版，含答案）

第28课时　[Unit 5 Lesson 28]
(
课内基础自测
)　　　　　　　　
Ⅰ.用所给单词的适当形式填空
1.The car got 　　　　(complete) out of hand because the engine was out of work.
2.We can′t explain the 　　　　(puzzle) fact.
3.The hen 　　　　(lay) more than one hundred eggs last year.
4.My parents know what I need　　　　 (learn) is to be independent.
Ⅱ.用方框中所给短语的适当形式填空
leave for, draw one′s attention, cut down, both…and…
5.When will you 　　　　　　　　Shanghai
6.He 　　　　　　　　the tall tree in front of the house last month.
7.The story 　　　　　　　　. We all liked it.
8.The boy can speak 　　　　　　　　English 　　　　　　　　French.
(
课后巩固提
升
)　　　　　　　　
Ⅲ.连词成句
9.butterflies, how, the, are, beautiful
　!
10.week, did, experiment, do, an, you, last
　
11.opinion, mine, your, as, is, the, same
　.
12.class, is, students, up, made, fifty, our, of
　.
Ⅳ.根据汉语意思完成句子
13.我听说李先生已经和太太一起动身去了澳大利亚。
I hear that Mr. Li has 　　　　　　　　Australia with his wife.
14.他刚才所说的立刻引起了每个人的注意。
What he said just now 　　　　　　　　　　　　at once.
15.上课注意听老师讲是个好习惯。
It′s a good habit to 　　　　　　　　　　　　what the teacher is saying in class.
16.那座山峰可能高达5800米。
That mountain can be 　　　　　　　　　　　　5 800 metres.
17.为什么蝴蝶只在马利筋上产卵
Why do the butterflies only 　　　　　　　　on milkweed
Ⅴ.[2020·杭州] 阅读理解
A lot of animals travel from one place to another. We call this migration.
In Africa, large animals, like elephants and zebras, migrate to find food and water. They usually follow the same ways every year.
A lot of birds migrate to find food and better weather, too. They are usually birds that eat insects. They spend the summer in northern Europe, because there are lots of insects there. In the winter there aren′t any insects, so the birds fly south to southern Europe and Africa.
Some insects migrate, too. In North America, millions of monarch butterflies fly south to spend the winter in Mexico, California and Florida, where it′s warmer. They travel 50-65 km each day and they travel about 1 125 km.
Some fish migrate to breed(繁殖). Salmon(鲑鱼) can swim over 20 000 km in their life. They are born in rivers in Ireland, Scotland and other places in northern Europe. The young fish swim down the river to the sea and into the Atlantic Ocean. They live in the ocean until they are adults. Then they return to the river where they were born. They lay their eggs in the river and then they usually die. Salmon do this, because their eggs are safer in the river. Other fish can′t eat them.
Arctic terns(北极燕鸥) travel the furthest when they migrate. They spend the summer in the Arctic, but when winter comes they fly to the Antarctic, because it′s summer there. The next year they fly back to the Arctic again. In one year these small birds travel 36 000 km from one end of the earth to the other and back again. Nobody knows how they do it.
(　　)18.According to the passage, monarch butterflies in North America migrate to　　　　.
A.find insects
B.look for water
C.find better weather
D.produce young
(　　)19.Adult salmon swim back to the river because　　　　.
A.they won′t be eaten by other big fish
B.they want to lay eggs in a safer place
C.they are getting ready to die there
D.they want to go where they grew up
(　　)20.Which of the following is true about animals′ migration
A.Elephants in Africa usually travel the same way each year.
B.Most birds fly to southern Europe and Africa in summer.
C.Some insects travel 1 125 km each day.
D.Salmon swim 20 000 km each year.
(　　)21.The example of Arctic terns in the last paragraph is used mainly to show 　　　　.
A.the distance of migration
B.the purpose of migration
C.the direction of migration
D.the time of migration
答案
课内基础自测
Ⅰ.1.completely　2.puzzling　3.laid　4.to learn
Ⅱ.5.leave for　6.cut down　7.drew our attention　8.both; and
课后巩固提升
Ⅲ.9.How beautiful the butterflies are
10.Did you do an experiment last week
11.Your opinion is the same as mine
12.Our class is made up of fifty students
Ⅳ.13.left for
14.drew everyone′s attention
15.pay attention to
16.as high as
17.lay eggs
Ⅴ.【主旨大意】 本文是一篇讲述动物迁徙的说明文,列举了大型动物、鸟类、昆虫、鱼、北极燕鸥等动物的迁徙现象及规律。
18.C　细节理解题。根据第四段第二句“In North America, millions of monarch butterflies fly south to spend the winter in Mexico, California and Florida, where it′s warmer.”可知北美帝王蝶迁徙到南方去是因为南方的天气更暖和。
19.B　细节理解题。根据第五段“Salmon do this, because their eggs are safer in the river. Other fish can′t eat them.” 可知成年鲑鱼游回到河里是为了产卵更安全。
20.A　细节理解题。根据第二段“In Africa, large animals, like elephants and zebras,migrate to find food and water. They usually follow the same ways every year. ”可知非洲大象每年都根据相同的路线迁徙。B选项中的summer应该是winter;C选项中的1125 km应该是50—65 km;D选项中的each year应该是in their life。
21.A　段落大意题。根据最后一段第一句“Arctic terns travel the furthest when they migrate.”可知北极燕鸥是迁徙距离最远的;根据最后一段倒数第二句“In one year these small birds travel 36 000 km from one end of the earth to the other and back again.”可知北极燕鸥一年的迁徙实际距离。所以这一段讲的是北极燕鸥迁徙的距离。