PartⅡ Key to the Tasks
Task 4.1
Across
2.phago-
4.pan-
6.dysfunction
8.chromo-
9.pedo-
Down
1.interferon
3.genomics
4.pathogen
5.auto-
10.phagocyte
12.lysosome
14.immunology
7.-genesis
10.pre-
11.antigen
13.mort-
Task 4.2（No key)
Task 4.3
1.protected from the disease；specifically recognizing and eliminating foreign invaders；recognition；response
2.pathogens；pathogenesis；viruses；bacteria；fungi
3.infection；the skin；the mucosal membranes
4.phagocytosis
5.adaptive immunity；a high degree of specificity
6.immune dysfunction
7.measles,mumps,pertussis,tetanus,diphtheria,and polio
Task 4.4
Task 4.5
1.A 2.C 3.D 4.C 5.D 6.A
Task 4.6（No key)
Task 4.7
1.They will more frequently be ill.
2.Because insufficiency of it will result in a low level of immune function which will cause primary immune disorders.
3.Chronic respiratory infections.
4.Establish good gut health and breastfeed the children.
Task 4.8
1.immunology
2.infectious
3.immune
4.adaptable
5.dynamic
6.recognition
7.microbiology
8.pathogens
9.microbes/microorganisms
10.deficiency
11.opportunistic
12.compromised(https://www.daowen.com)
13.innate
14.onset
15.disease-resistance
16.components
17.encountered
18.membrane
19.contents
20.acidic
21.fungal
22.marker
23.ingestion
24.interferon
25.complement
26.adaptive
27.specificity
28.antigen
29.exposure
30.dysfunction
31.rejection
32.graft-versus-host
33.autoimmune
34.vaccines
35.bioterrorism
36.vaccination
37.mortality
38.pandemic
39.proteomics
40.diet
41.bidirectional
42.consequences
43.status
44.susceptibility
45.extensive
46.review
47.model
48.neonate
49.suckling
50.critically
51.impaired
52.promising
53.insufficient
54.respiratory
55.variability
56.experimental
57.clinical
58.gestational
59.effect
60.dietary
61.nutrition
62.unravel