Unit 5 Look into Science Lesson 29课课练 （word版，含答案）

第29课时　[Unit 5 Lesson 29]
(
课内基础自测
)　　　　　　　　
Ⅰ.根据句意及首字母提示补全单词
1.G　　　　 speaking, women can live longer than men.
2.His mother asked him to r　　　　 what she said.
3.We should read the i　　　　 before we take the medicine.
4.Li Lei is one of the old man′s g　　　　.
5.There are b　　　　 of people around the world.
Ⅱ.用方框中所给短语的适当形式填空
in general, except for, be related to,billions of, not only…but also…
6.Danny is a good student 　　　　　　　　his carelessness.
7.Lucy can 　　　　　　　　sing 　　　　　　　　dance.
8.　　　　　　　　, my mother goes shopping on Sunday.
9.Your DNA 　　　　　　　　your grandfather′s.
10.　　　　　　　　 people like to drink tea.
(
课后巩固提
升
)　　　　　　　　
Ⅲ.单项选择
(　　)11.What will you do 　　　　the old books
A.to B.with C.about D.for
(　　)12.Keep Running is a very relaxing TV program 　　　　is still hot among teenagers.
A.which B.what C.who D.when
(　　)13.Ben′s composition is almost perfect 　　　　several spelling mistakes.
A.except B.except for C.besides D.beside
(　　)14.[2019·临沂] A break between classes is a good time for students to play sports and talk with their classmates. So it　　　　 helps with students′ health,
　　　　improves their social skills.
A.either; or B.neither; nor C.not only; but also D.both; and
(　　)15.[2020·百色] The environment here becomes better and better. 　　　　birds are coming back.
A.Hundred B.Hundreds C.Thousand D.Thousands of
(　　)16.We can′t 　　　　the mistakes of the past.
A.speak B.repeat C.describe D.introduce
Ⅳ.阅读理解
Do you have brown hair Are you taller than other kids your age These characteristics were decided before you were born. You got your traits from your parents. They passed their traits on to you through genes(基因).
　　Genes carry codes(代码) for blue eyes or brown eyes. Genes say how tall you will get and whatcolour hair you will have. You got half of your genes from your mother. You got half of your genes from your father. So you have your own set of genes. Each person gets different genes for each body part. That is why you look like—but not exactly like—your brother or sister.
　　A dominant(显性的) gene shows up most of the time. Brown eyes are dominant over blue eyes. A recessive(隐性的) gene shows up less often. Light hair comes from a recessive gene. Dark hair is more common. Look at the eye colour and hair colour of the people around you. You will see that this is true.
Genes help make you who you are. But they don′t tell the whole story. Your genes may help you be fast and strong. But you still need to learn how to run, swim or skate well.
(　　)17.The underlined word “traits” in Paragraph 1 means 　　　　.
A.characteristics B.experiences
C.achievements D.possibilities
(　　)18.According to Paragraph 3, you can see most of the people around you have　　　　.
A.brown eyes with dark hair
B.brown eyes with light hair
C.blue eyes with dark hair
D.blue eyes with light hair
(　　)19.What is the passage mainly about
A.Genes carry codes for eyes and hair.
B.Genes help make you who you are.
C.Genes help you be fast and strong.
D.Genes make brothers look similar.
答案
课内基础自测
Ⅰ.1.Generally　2.repeat 3.instructions　4.grandsons 5.billions
Ⅱ.6.except for　
7.not only; but also
8.In general　
9.is related to
10.Billions of
课后巩固提升
Ⅲ.11.B 　12.A
13.B　except表示从整体中除去,不包括所排除的人或事物在内,除去和未除去的是同类人或事物;except for说明基本情况,对细节加以纠正;besides 意为“除……之外还有”,包括排除的人或事物在内;beside 意为“在……旁边”。根据句意可知选B。
14.C　连词辨析。句意:课间休息是学生们做运动和与同学交谈的好时间。因此,它不仅有助于学生的健康,而且提高他们的社交技能。either…or…意为“或者……或者……”;neither…nor…意为“既不……也不……”;not only…but also…意为“不但……而且……”;both…and…意为“……和……都”。根据句意“有助于学生的健康”和“提高他们的社交技能”可知,设空处表示“不但……而且……”,
15.D　16.B
Ⅳ.17—19　AAB